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Event Programe That there are not many role models for young girls in their engineering career path has also been established by the rare women of their generations who opted for a professional path in engineering. Although there are exist no rational reasons today to view engineering solely as a male profession, almost a half of the talent pool – girls interested in maths, physics and natural sciences – remains untapped. This year, the Female and Male Engineers project in collaboration with the IRT Forum and Siemens Slovenia is going to address for the first time the challenge of invisibility of female engineers, and thereby indirectly also the visibility of engineers in the society. The Female Engineer of the Year award will be presented for the first time in January 2019, aiming to present 10 female engineers to Slovenian audience every year. Vida Petrovčič; Participants: Saša Mrak, Združenje Manager; Mitja Kolbe, SIJ – Slovenska industrija jekla, d.d.; Edita Krajnović, Mediade d.o.o.; Jožica Rejec, Domel, d.o.o.; Jernej Čopi, Ensol 360, d.o.o.; Janez Novak, RLS d.o.o. ISTMA is a global umbrella organisation for the tool- and mouldmaking sector, always interpreting the key indicators of our sector and representing its members in other structures and institutions. Tool- and mouldmaking is a global industry with a global interest. Its development is of strategic importance for any advanced economy, so most national associations closely monitor the development of this industry and develop system incentives for its sustainable development. Tool- and mouldmaking is global both with respect to sales and with respect to the key system problems which are being solved using very similar means. Slovenia is a tool- and mouldmaking country and a prominently export-oriented economy. This means that it remains competitive through adequate developmental and technological know-how and efficient technological realisation. Tool- and mouldmaking is a part of the smart specialization programme and an important driver of the new upturn of Slovenian economy. Let us do our best so that this shining light never fades. ELAPHE pogonske tehnologije d.o.o. KERN d.o.o. In our company we have many stations, which include manual manipulation with screwing. Because of this we decided that it is time for something new. We made the first step and chose the robot, the second step was choosing screwing tool and the third step was to explore what is needed to make application safe. For making application safe we cooperated with company that is expert in safety systems. The last step was to combine everything together and make application with collaborative robot. The complete collaborative work station contains collaborative robot with automatically feeding screwdriver and sensors for additional safety. With this first collaborative work station, we knocked down the fence between robot and worker and now the worker cooperates with robot and this is the new look at the industry 4.0. LTH Castings d.o.o. The workpiece surface quality depends on two parameters – tool radius and axial depth of cut (ap). The surface quality is reduced with a greater depth of cut and improved with a greater tool radius when the axial depth of cut stays the same. Imagine that a certain surface roughness requires a 500-mm cutter and, consequently, a working space large enough to accommodate a 1000-mm diameter tool. That would be simply impossible. How to solve this problem? FRANKEN as the pioneer of circle segment cutters has found a solution and upgraded its circle segment cutter program in 2017 with two new shapes. The development, operation and advantages of the new cutters will be presented at the forum. FRANKEN GmbH & Co. KG All trends are clearly showing that all state-of-the-art technology available has to be integrated in a consolidated system, thereby enabling the users to simply control and manage their processes. And this is one of the key pillars of Industry 4.0, also known as “Smart factories”. In our presentation, we are going to highlight the technologies and their place in the manufacturing processes with respect to the comprehensive automation, optimisation and manufacturing process quality assurance in the industry. Production line enables the production of large volumes of stone wool and a quick transition to a new type of product. The customer of robot cell, Knauf Insulation supplies products of various sizes and wool densities, which are produced in large or small series. Robotization of product stacking at the exit from the press is the first and at the same time the most important step towards a fully automated packaging and palletizing process. Yaskawa Ristro d.o.o. The International Grinding Institute, San Antonio, TX, USA Scania CV AB, Södertälje, Sweden There are already a lot of standard materials for Additive Manufacturing available. However, for complex tooling applications the properties of these standard materials are not sufficient in regards of corrosion resistance, hardness, or wear resistance. Therefore voestalpine Böhler Edelstahl GmbH & Co KG will launch newly developed products to close this gap. Our current buyer deals with the development and production of complete process lines in the food industry, chemical and pharmaceutical industries. The presented robotic welding manipulation system was developed and conceived together with the customer, with the desire for high productivity and repeatability. Before the solution, the customer used manual welding technologies, which caused him difficulty in achieving higher productivity, especially in the case of repeatability and ensuring the highest quality of his products. In this case, the robotic welding manipulation system consists of two systems and each of them consists of two robots. In the first system there is one welding robot which is equipped with our latest welding technology called \\\"synchrofeed\\\" for \\\"cold and quick\\\" welding without sprays, one handling manipulation robot and two rotating positioners. The second system consists of two welding robots equipped with TIG welding equipment and one rotating positioner, which can be adjusted to welding the customer\\\'s products up to a height of 3,000 mm and a diameter of 1,750 mm. Hidria Rotomatika Problems that sometimes occur are complex, multilevel and not straightforward. It often turns out the clients do not have enough resources, experience, know-how or analytical methods to comprehensively deal with the problems and their solutions. We are going to present two case studies where our company was involved in solving a real-world problem and finding a path to the end solution. The article outlines the problems of the development and optimization of molding process of the lamp\\\'s outer lens with a large dimension ratio. SIES d.o.o. The samples of the enameled steel sheet were metallographically prepared and analyzed by scanning electron microscopy (SEM-EDS) and optical microscopy (OM). We found out that the layer of analyzed enamels has multiphase structure, consisting of amorphous regions with different chemical composition, crystalline phases and pores. From the microchemical analysis results of the enamel powders it can be seen, that certain crystalline phases in the enameled layer originate from the process of preparing enamel powders. From the microchemical analysis of the steel – enamel phase boundary, it is evident that chemical reactions occur during the firing of the enamel at certain points on the phase boundary, whereby the cobalt diffuses into the steel. An assessment of the influence of enamel layer thermal conductivity on the thermal transmittance of enameled steel sheet is also calculated. Gorenje d.d. Our presentation will discuss how we analyzed the applicability of available contact and non-contact 3D-measurement equipment for the purposes of reverse engineering. Topomatika We present an indicative study that compares data from spectrophotometry and mechanical and thermal testing, using samples that were subjected to repeated processing in a twin-screw extruder. Based on our results, we discuss the advantages and limitations of this method for the investigation of polymer degradation. The article deals with the cleanlines level of the hydraulic fluid, the recommended cleanliness levels, contamination of fresh hydraulic oils, the methods and parameters for conditioning monitoring of the hydraulic fluids. UM, Fakulteta za strojništvo Karbonin d.o.o. Plastika Skaza The article will describe the planning process for such a control device. It will begin with the presentation of the procedure going from the drawing of the item being measured with all the measured dimensions and their tolerances defined until the design of the control device. This will be followed by a presentation of development of a mechanical construction of the device. In the end, the selection of relevant measuring sensors, the development of control equipment, control program and processing of the measured data will be presented. A process for ensuring the traceability of all pieces manufactured will also be described. PRECISIUM d.o.o. The article will show an example of the optimization of injection moulding of the semi-finished product and the tool, as well as the experience with various methods of the injection moulding process control. Our aim is to focus on human visual abilities that change slightly with the use of protection. By correctly and appropriately choosing corrective protective eyewear we will eliminate the imbalance between human individual characteristics, environment and work task. Imbalance can cause discomfort, the appearance of errors, accidents and injuries at work. Today\\\'s technology enables the use of state-of-the-art materials for the production of corrective safety spectacles that meet the most demanding standards. Our goal is to prepare and apply reliable and innovative solutions to protect the vision system from the impact of the external environment. We focus on the integration of state-of-the-art technology in the production of corrective safety spectacles and in creating conditions that correspond to human individual visual abilities. Human visual abilities, environment and work are involved in this. The triangle of visual ergonomics forms human characteristics (eye health, eyeglass wear, depth detection, color separation, visual acuity), environment (illumination, danger of eye damage, air quality, psychosocial factors and job satisfaction) and work (visual displays, visual display settings, workplaces organization, size, color and font contrast, rest at work and work intensity). Alcom d.o.o. OPC UA is the most widely used standard to comply with all the requirements of the RAMI 4.0 model, enables interoperability and connects the different model levels. The structure of OPC UA is multi-level. The basic level, providing system support for the key services, is dynamically complemented with global domain standards, the so-called Companion Specifications. The domain specifications define a unified communication interface, which must be supported by every standard-compliant device. This makes it possible for the users to quickly swap devices and machines, even if they are made by different manufacturers, while the system integrators are able to quickly set-up a system and easily maintain it. One of these domains is Vision (machine vision). The preparation of this standard is led by German VDMA. Kolektor is a member of the core workgroup preparing the standard. The first version of specification will be presented at Automatica 2018 fair, and Kolektor will use this opportunity to present the first vision sensor in the world compliant with this specification. The IoT device will be based on deep neural networks. It will be suitable for different tasks, such as detecting anomalies in the industrial environment, and will be capable of communicating in the factories of the future using the OPC UA Vision CS standard. In this paper we present a biocomposite from miscanthus fibers and PE-HD matrix that is designed for use in the automotive industry and can be used to make a prototype car seat component.. We tested the influence of different amount of miscanthus fibers in the biocomposite, different technologies for pretreating miscanthus fibers and various compatibilizers. Characterization of properties was carried out partly in the laboratories of the Faculty of Polymer Technology, partly in the laboratories of Kolektor. We measured mechanical and thermal properties, dynamic mechanical properties, toughness and thermal conductivity. We also tested the porosity and homogeneity of injected moulded pieces using CT images. The achieved properties show that it is possible to prepare biocomposites from low price plastic that are suitable for engineering applications. The work was carried out as part of the Cel. Krog project - potential of biomass for development of advanced materials and bio-based products, led by the Institute of Pulp and Paper, where Kolektor and the Faculty of Polymer Technology are involved as partners. Kolektor Krilotim Razvojni center Jesenice d.o.o. TECOS Daihen VARSTROJ d.d. UM, Fakulteta za strojništvo At the 10. IRT Industrial Forum we are going to present our mould solutions using round fine centering together with our supplier, who also provides us full support. Our contribution will showcase the operation of a fine centering system with roller units and its advantages compared to the other solutions on our market. We are convinced that other Slovenian toolshops will find our experience interesting too, and that it will help them to solve issues with precise centering of mould plates and dies. SIBO GROUP d.o.o. manufactures polymer products in tight tolerances. In most of our products, the external form is located in one mould plate, and the core with the internal form is located in the other mould plate. This requires a precise and repeatable centering of mould plates as the mould closes. Fine centering with sliding guides posed issues due to inaccurate centering and guide wear, so we have decided to test a round fine centering system. The system proved to be a technically and economically excellent solution and we are now using it in most of our moulds. The system guarantees accurate centering of mould plates even before the mould is closed. This is especially significant for the moulds where the closing surfaces start to mate even before the mould is completely closed. At the 10. IRT Industrial Forum we are going to present our mould solutions using round fine centering together with our supplier, who also provides us full support. Our contribution will showcase the operation of a fine centering system with roller units and its advantages compared to the other solutions on our market. We are convinced that other Slovenian toolshops will find our experience interesting too, and that it will help them to solve issues with precise centering of mould plates and dies. The procedure for determining the FF is prescribed by standards, such as ISO 1172 and ASTM D2584. The procedure exposes a laminate sample to elevated temperatures, at which the organic resin burns off, leaving only the inorganic glass fibers. By weighing the laminate before and after the burn-off test, the FF is determined. At higher product optimizations, the burn-off procedure shows discrepancies in the FF determination, because it ignores the organic fibers’ sizing and the organic stitches in the reinforcement. The procedure also inadequately accounts for the moisture in the fibers and resin. Namely, the organic substances and moisture burn away during the burn-off test, yet the procedure considers these as part of the unburnable inorganic fibers. This discrepancy gives an inaccurate FF, causing the product to be considered as not manufactured to specifications, which may lead to product rejection. The paper proposes an upgraded procedure for determining a higher accuracy FF by considering fiber sizing, stitches, and moisture in the fibers & resin. The procedure also accounts for voids in the product laminate. For determination of the optimal heat treatment temperatures for C60 steel, a sensitivity-to-grain growth hardenability test was performed and on the basis of the results obtained, the temperatures of hardening, normalization and spheroidize annealing were determined. The samples were then heat treated, namely hardened in brine and oil, and normalized in order to achieve different initial microstructures before spheroidize annealing. After hardening in brine, lath martensite was obtained, whereas after hardening in oil, pearlite colonies were also noticed in addition to lath martensite. In the samples, which were normalized, however, lamellar pearlite and some ferrite in the microstructure were obtained. Following the ISO 9950 standard, a measurement probe was constructed and the cooling rates in each cooling medium (brine, oil and air) were measured. The proportion of spheroidized cementite in steel samples, which were annealed for variable lengths of time in an electrical resistent chamber furnace in air, was determined by scanning electron microscopy. Metallographic examinaton showed that in the microstructure of the samples, heat treated in brine and oil, fine particles of cementite were homogeneously distributed in ferrite matrix after one hour of spheroidize annealing, while the proportion of spheroidized lamellas in the normalized sample reached around 20 % at the same time of annealing. Even after 24 hours there was no full spheroidization in the normalized sample. Hardness measurement according to Vickers method was also performed. It was established that when steel was hardened in brine and oil, hardness fell rapidly after one hour of spheroidize annealing and then slowly decreased by the time of annealing. The hardness of normalized samples, however, constantly decreased slightly by the time of annealing. Fakulteta za strojništvo The conformal channels are being adapted directly to the contour of the final product within the tooling inserts, enabling faster heat dissipation in critical geometrical areas, a more even distribution of the temperature in the tool, smaller input of residual stresses of the final product, and consequently a greater geometric and dimensional stability of the injected parts. With shorter technological cycles of injection processing it is now possible to increase the productivity operations and decrease the production costs. By using modern methods of cooling, we can obtain better quality of the finished products, while at the same time we can reduce the production costs from 30 to 40 percent. The presented study involves the comparative analysis of the conventional and conformal cooling effects in plastic injection moulds in relation to the final quality of the injected parts. The design and layout of the conformal cooling channels are evaluated against to traditional cooling circuits (linear channels) by CAE simulations to optimize the conformal tooling insert, later on produced with the rapid prototyping technology - Direct Metal Laser Sintering (DMLS). The current work investigates the limitations and advantages of conformal cooling technology throughout an actual comparison of the mould temperatures and cycle times in relation to the optimal heat dissipation. In this article we present examples for using polyurethane as matrix material for composites. We investigate the influence of accelerator addition and subsequent crosslinking on the mechanical and thermal properties of polyurethane-based laminates. In addition, in a complex production environment with a large number of installations, it is important that the maintenance activities and experiences are documented as Best Known Methods (BKM). In order to avoid production delays, the product flow must be coordinated by intelligent planning and the spare parts management must be coordinated with the ERP system as interlinked integration. On the basis of examples from production, this lecture will present the procedures for intelligent maintenance management. camLine GmbH Tecos and Bizjan orodjarstvo tool- and mould-making company are developing a new mould concept that will make it possible to injection mould different products in a single mould. The project is co-financed through the Ministry of Economic Development and Technology program \"Innovation, research and development in value chains and networks\". The mould will be fitted with a special actuator system and control to enable the autonomous selection of cavities and adjustment of injection moulding process to 4 products of completely different shape. The article will present the limitations and technological challenges which had to be overcome developing the prototype of a self-regulating flexible mould. We will describe the mould concept development phase and discuss how product shape is limited by the mould concept and the injection-moulding process. The final mould design aims for cost-efficient low-series injection moulding of completely different products. TECOS
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Program Da mlade djevojke nemaju dovoljno uzora za svoj inženjerski put, svjesno je svega nekoliko pojedinki, koje su se u svojoj generaciji odlučile za inženjerski put u karijeri. Iako danas više nema razumnih razloga, koji bi definirali inženjerstvo kao muški poziv, gotovo polovica bazena talenata - djevojaka, koje u srednjim školama i gimnazijama zanimaju matematika, fizika i prirodoslovlje - ostaju neiskorišteni. Projekt Inženjerke i inženjeri u suradnji s IRT Forumom i Siemensom Slovenija, s priznanjem Inženjerka godine po prvi puta izravno postavlja izazov nevidljivosti inženjerki i preko toga prepoznatljivosti i ugleda inženjera u društvu. Sa ciljem, da Slovenija svake godine upozna 10 inženjerki, priznanje Inženjerka godine biti će dodijeljeno po prvi puta u siječnju 2019. godine. Vida Petrovčič; Sudionici: Saša Mrak, Združenje Manager; Mitja Kolbe, SIJ – Slovenska industrija jekla, d.d.; Edita Krajnović, Mediade d.o.o.; Jožica Rejec, Domel, d.o.o.; Jernej Čopi, Ensol 360, d.o.o.; Janez Novak, RLS d.o.o. ISTMA je organizacija, koja globalno povezuje alatničarski sektor te nastoji interpretirati ključne pokazatelje sektora te zastupati članove u drugim strukturama i institucijama. Alatničarstvo je globalna branša s globalnim interesom. Razvoj branše je strateški smjer svake napredne ekonomije i većina nacionalnih udruženja posebice prati razvoj branše i razvija sustavne poticaje za održivi razvoj branše. Alatničarstvo je globalno ne samo na području prodaje, već i na području ključnih sustavnih problema, koji se rješavaju na vrlo sličan način. Slovenija je alatničarska zemlja i ekonomija, koja je izrazito izvozno usmjerena. Znači, da je konkurentna, s primjerenim razvojno – tehnološkim znanjem te učinkovitom tehnološkom realizacijom. Alatničarstvo je u programu tzv. pametne specijalizacije i važna je poluga u novoj konjunkturi slovenskog gospodarstva. Pobrinimo se, da ta svjetla točka ne izgubi sjaj. ELAPHE pogonske tehnologije d.o.o. KERN d.o.o. U našoj tvrtki imamo mnogo postaja, koje sadrže ručnu manipulaciju zavrtanja. Radi toga smo se odlučili, da je vrijeme za nešto novoga. Načinili smo prvi korak i izbrali robota, načinili smo drugi korak i izabrali jedinicu za zavrtanje te s trećim korakom provjerili, što je sve potrebno načiniti, da je aplikacija sigurna. Pri implementaciji aplikacije smo sudjelovali sa stručnjacima na području sigurnosti robota. Sa zadnjim korakom smo udružili sve prethodne korake i načinili aplikaciju sa suradničkim robotom. Konačna aplikacija sadrži suradnički robot s automatskim doziranjem vijaka i senzore za dodatnu sigurnost. S tom prvom aplikacijom smo uklonili ogradu između robota i radnika i sada radnik sudjeluje s robotom i to je novi pogled na industriju 4.0. LTH Castings d.o.o. Za kvalitetu obrađene površine su važne dvije stvari: radijus alata i aksijalni (redni) pomak (ap). Kvaliteta površine se smanjuje, ukoliko se poveća korak između redova i poboljša, ukoliko se poveća radijus alata pri jednakom koraku između redova. Zamislite si, da za određenu hrapavost trebate glodalo s polumjerom 500 mm, za što je potreban radni prostor za alate promjera 1000 mm, što je jednostavno nemoguće. Kako riješiti taj problem? Pionir u glodalima kružnog presjeka FRANKEN je to riješio i 2017. godine osuvremenio kataloški program glodala kružnog presjeka s dva nova oblika. Razvoj, djelovanje i prednosti će vam biti predstavljeni na forumu. FRANKEN GmbH & Co. KG Svi trendovi pokazuju, da je potrebno sve raspoložive napredne tehnologije povezati u cjeloviti sustav i tako omogućiti korisnicima, da s njima jednostavno kontroliraju i upravljaju procesima. I upravo to je jedan od ključnih stupova Industrije 4.0, kojeg nazivamo i »Pametne tvornice«. U našem članku želimo naglasiti tehnologije te njihovu ugradnju u proizvodne procese za postizanje cjelovite automatizacije, optimiranja i osiguravanja kvalitete proizvodnih procesa u industriji. Proizvodnja linija omogućuje izradu velike količine kamene vune te brzi prijelaz na novi tip proizvoda. Kupac robotske ćelije Knauf Insulation, isporučuje proizvode različitih dimenzija i gustoće vune, koja se proizvodi u velikim ili malim serijama. Robotizacija slaganja proizvoda na izlazu iz preše je prvi i istodobno najvažniji korak do potpuno automatiziranog procesa pakiranja i paletiranja. Yaskawa Ristro d.o.o. The International Grinding Institute, San Antonio, TX, USA Scania CV AB, Södertälje, Sweden Naš kupac se bavi razvojem i izradom kompleksnih procesnih linija u prehrambenoj, kemijskoj i farmacijskoj industriji. Predstavljeni robotski, zavarivačko-manipulacijski sustav bio je razvijen i koncipiran zajedno s kupcem, sa željom za visokom produktivnošću i ponovljivošću. Prije se je kupac posluživao ručnim tehnologijama zavarivanja, što mu je uzrokovalo poteškoće pri postizanju više produktivnosti, a posebice pri ponovljivosti i osiguravanju najviše kvalitete proizvoda kojem streme. U ovom slučaju robotski, zavarivačko-manipulacijski sustav sastavljaju dva sustava, a svakog od njih čine po dva robota. Kod prvog sustava riječ je o jednom robotu za zavarivanje opremljenom našom najnovijom tehnologijom zavarivanja nazvanom \\\"synchrofeed\\\" za \\\"hladno i brzo\\\" zavarivanje bez štrcanja, jednog manipulacijskog robota za posluživanje te dva okretna pozicionera. Drugi sustav sastavljaju dva robota za zavarivanje opremljena opremom za TIG zavarivanje i jednim okretnim pozicionerom, koji se može prilagoditi zavarivanju proizvoda kupca do visine od 3.000 mm i promjera 1.750 mm. Hidria Rotomatika Ponekad se pojavljuju problemi, koji su kompleksne višestruke prirode i nisu jednostavno rješivi. U takvim problemima se obično pokazuje, da naručitelji nemaju dovoljno resursa, iskustava, znanja i analitičkih metoda, koji bi omogućili cjelovitu obradu problema i njegovo rješavanje. Na predstavljaju ćemo prezentirati dva primjera, gdje ćemo pokazati, kako se naša tvrtka uključila u rješavanje konkretnog problema i put do konačnog rješenja. SIES d.o.o. Izravna mjerenja toplinskih svojstava emajliranog čeličnog lima nismo mogli izvesti, stoga smo uzorke emajla pripremili i u obliku debelih slojeva. Rezultati, koje smo dobili mjerenjima toplinskih svojstava debelih slojeva, su u okviru očekivanih vrijednosti za toplinska svojstva emajla, no utvrdili smo, da veliki utjecaj na toplinska svojstva ima postignuta gustoća emajliranog sloja. Uzorke emajliranog lima smo metalografski pripremili i analizirali skenirajućom elektronskom mikroskopijom (SEM) i optičkom mikroskopijom (MI). Utvrdili smo, da je sloj analiziranih emajla višefazan, jer je sastavljen od amorfnih područja s različitim kemijskim sastavom, kristalnih faza i pora. Iz mikrokemijske analize (SEM-EDS) prahova emajla je očito, da određene kristalne faze u sloju emajla na čeličnom limu izviru iz samog postupka pripreme prahova emajla. Iz mikrokemijske analize fazne granice čelik - emajl očito je, da se tijekom pečenja emajla na određenim mjestima fazne granice odvijaju i kemijske reakcije, pri čemu kobalt difundira u čelik. Proveli smo i ocjenu utjecaja toplinske provodnosti emajliranog sloja na toplinsku provodnost emajliranog čeličnog lima. Gorenje d.d. U članku ćemo predstaviti, kako smo analizirali primjenjivost trenutačno raspoloživih kontaktnih i beskontaktnih trodimenzijskih mjernih uređaja za mjerenje povezano s untražnim inženjerstvom. Topomatika U članku predstavljamo studiju, koja uspoređuje rezultate spektrofotometrije te rezultate mehaničke i toplinske analize uzoraka, koji su bili podvrgnuti višestrukoj preradi s dvopužnim ekstruderom. Obzirom na dobivene rezultate, zatim smo obradili prednosti i nedostatke spektrofotometrije za analizu degradacije polimera. Članak obrađuje stupnjeve čistoće hidrauličke tekućine, preporučene stupnjeve čistoća, (ne)čistoće svježih hidrauličkih ulja, načine i parametre za nadzor stanja hidrauličkih tekućina. UM, Fakulteta za strojništvo Karbonin d.o.o. Plastika Skaza PRECISIUM d.o.o. Naš cilj je, da se usredotočimo na ljudske vizualne mogućnosti, koje se primjenom zaštite donekle mijenjaju. S pravilnim i odgovarajućim izborom korekcijskih naočala, ukloniti ćemo neuravnoteženost između ljudskih individualnih svojstava, okruženja i radnog zadatka. Neuravnoteženost može uzrokovati nelagodu, pojavu grešaka, nesreća i ozljeda na radu. Današnja tehnologija omogućuje primjenu najsuvremenijih materijala za izradu korekcijskih zaštitnih naočala, koji odgovaraju najzahtjevnijim standardima. Naš cilj je pripremiti i primijeniti pouzdana i inovativna rješenja za zaštitu organa od utjecaja vanjskog okruženja. Usredotočujemo se na integraciju najsuvremenije tehnologije pri izradu korekcijskih zaštitnih naočala i pri stvaranju uvjeta, koji odgovaraju ljudskim individualnim vizualnim mogućnostima. Pri tome sudjeluju ljudske vizualne sposobnosti, okruženje i rad. Trokut vizualne ergonomije tvore ljudske karakteristike (zdravlje očiju, nošenje naočala, dubinsko raspoznavanje, razlučivanje boja, oštrina vida), okruženje (osvjetljenje, opasnost od oštećenja očiju, kvaliteta zraka, psihosocijalni faktori i zadovoljstvo pri radu) te rad (vizualni prikazivači, postavke računalnih zaslona, uređenje radnog mjesta, veličina i boja te kontrast teksta, osjećaj na radu i intenzitet rada). Alcom d.o.o. OPC UA je najprošireniji standard, koji odgovara svim zahtjevima modela RAMI 4.0, omogućuje interoperabilnost te povezivanje komponenata između svih razina modela. OPC UA je izgrađen razinski. Osnovna razina, koja sustavno podržava ključne servise, s velikom dinamikom se dopunjuje s domenskim, svjetskim standardima, takozvanim Companion Specifications. Domenske specifikacije definiraju jedinstveno komunikacijsko sučelje, kojeg moraju podržavati svi uređaji, koji su sukladni standardu. To omogućuje korisnicima brzu izmjenu uređaja ili strojeva, bez obzira na proizvođača, a sistemskim integratorima omogućuje brzo uspostavljanje sustava i jednostavno održavanje. Jedna od takvih domena je Vision (strojni vid). Nositelj pripreme tog standardna je Njemačka komora VDMA. Tvrtka Kolektor je član uže radne grupe, koja priprema standard. Prva verzija specifikacije biti će predstavljena na sajmu Automatica 2018, a istodobno s tim događajem ćemo u Kolektoru završiti razvoj prvog inteligentnog vision senzora na svijetu, koji će biti sukladan s tom specifikacijom. IoT uređaj će se temeljiti na primjeni dubokih neuronskih mreža. Moći će obavljati različite zadatke, npr. detekciju anomalija u industrijskom okruženju, i komunicirati u okruženju tvornica budućnosti preko standarda OPC UA Vision CS. U članku ćemo predstaviti biokompozit od vlakana miskantusa i PE-HD matrice, koji je razvijen za primjenu u automobilskoj industriji te ćemo ga primijeniti za izradu prototipa dijela kućišta za automobilsko sjedalo. Testirali smo utjecaj različitih udjela vlakana miskantusa u biokompozitu, različitih tehnologija pripreme vlakana miskantusa prije smješavanja i različitih kompatibilizatora. Karakterizaciju svojstava smo proveli djelomično u laboratorijima Fakulteta za tehnologiju polimera, a djelomično u laboratorijima tvrtke Kolektor. Vrednovali smo mehanička i toplinska svojstva, dinamička mehanička svojstva, žilavost, toplinsku provodnost. S pomoću CT snimaka smo provjerili i poroznost te homogenost injekcijski prešanih dijelova. S postignutim svojstvima smo uspjeli iz visokotonažne matrice načiniti inženjerski plastomerni biokompozit. Rad je bilo obavljen u okviru projekta Cel.Krog - Iskorištavanje potencijala biomase za razvoj naprednih materijala i bio-osnovanih proizvoda, kojeg vodi Institut za celulozu i papir, gdje kao partneri sudjeluju Kolektor i Fakultet za tehnologiju polimera. Kolektor Krilotim Razvojni center Jesenice d.o.o. TECOS Daihen VARSTROJ d.d. UM, Fakulteta za strojništvo Kod većine naših proizvoda, vanjski dio oblika je u jednom kalupnoj ploči, a jezgre s unutrašnjim dijelom oblika u drugoj kalupnoj ploči. To zahtijeva točno i ponovljivo međusobno centriranje kalupnih ploča pri zatvaranju kalupa. Pri uporabi elemenata za fino centriranje s kliznim vodilicama smo imali probleme radi netočnog centriranja i trošenja kliznih vodilica, stoga smo se odlučili, da ćemo isprobati sustav za okruglo fino centriranje. Taj sustav se je pokazao kao tehnički izvrsnim i cjenovno povoljnim rješenjem i sada ga primjenjujemo u većini naših kalupa. Sustav omogućuje točno međusobno centriranje kalupnih ploča prije samog zatvaranja kalupa, što je važno kod kalupa kod kojih se ravnine podjele počinju nalijegati prije konačnog zatvaranja kalupa. Industrijskom forumu IRT 2018 želimo predstaviti naše rješenje pri uporabi sustava za okruglo fino centriranje u našim kalupima, zajedno s našim dobavljačem, koji nam pored dobave nudi i svu potrebnu podršku pri uporabit tog sustava. U članku će biti opisano djelovanje sustava za fino centriranje sa cilindričnim vodilicama i njegove prednosti pred ostalim rješenjima, koja su dostupna na našem tržištu. Uvjereni smo, da će naše informacije biti zanimljive ostalim alatnicama u Sloveniji i da će im pomoći pri rješavanju problema, koje imaju pri točnom međusobnom centriranju kalupnih ploča i matrica. Za određivanje optimalnih temperatura toplinskih obrada čelika C60 smo proveli ispitivanje kaljene vrste i na osnovi dobivenih rezultata odredili temperature kaljenja, normalizacije i sferoidizacijskog žarenja. Uzorke smo zatim toplinski obradili, odnosno kalili u slanoj kupki i ulju te normalizirali sa ciljem postizanja različitih ishodišnih mikrostruktura prije sferoidizacijskog žarenja. Nakon kaljenja u slanoj kupki smo dobili letvasti martenzit, a nakon kaljenja u ulju smo pored letvastog martenzita primijetili i perlitne kolonije. U uzorcima, koji su bili normalizirani, smo u mikrostrukturi dobili lameralni perlit te nešto ferita. Prema standardu ISO 9950 smo načinili mjernu sondu i izmjerili brzinu hlađenja u pojedinom mediju za hlađenje (slana kupka, ulje i zrak). Udio sferoidiziranog cementita u uzorcima od čelika, koji su bili različito dugo žareni u elektrootpornoj komornoj peći na zraku, odredili smo skenirajućom elektronskom mikroskopijom. Metalografsko ispitivanje je pokazalo, da su u mikrostrukturi uzoraka, kaljenih u slanoj kupki i ulju, nakon jednog sata sferoidizacijskog žarenja sitne čestice cementita homogeno raspodijeljene u feritnoj osnovi, dok je udio sferoidiziranih lamela u normaliziranom uzorku pri jednakom vremenu žarenja oko 20 %. Pri normaliziranom uzorku i nakon 24 sata nije došlo do potpune sferoidizacije. Bilo je obavljeno i mjerenje tvrdoće prema metodi Vickers. Utvrdili smo, da pri čeliku, kaljenom u slanoj kupki i ulju, tvrdoća brzo pada nakon jednog sata sferoidizacijskog žarenja, a zatim se polako snižava s vremenom žarenja. Tvrdoća normaliziranih uzoraka se čitavo vrijeme lagano smanjuje. Fakulteta za strojništvo Primjena konformalnog hlađenja, odnosno hlađenja, koje se neposredno prilagođava konturi proizvoda u kalupu, omogućuje ujednačeniju razdiobi temperature u kalupu, brže odvođenje topline u kritičnim područjima, manji unos zaostalih naprezanja u proizvodu te posljedično veću geometrijsku i dimenzijsku stabilnost proizvoda, s kraćim tehnološkim ciklusima prerade kao i veću produktivnost i manje troškove proizvodnje. Primjenom suvremenog načina hlađenja tako dobivamo kvalitetnije konačne proizvode, a istodobno snizujemo troškove proizvodnje do 30 do 40 posto. U stručnom članku je predstavljena usporedna analiza hlađenja kalupa s konvencionalnim sustavom za hlađenje i sustavom za hlađenje načinjenim po obliku otpreska. S pomoću simulacije injekcijskog prešanja plastike optimirao se osnovni oblik i položaj kanala za hlađenje u kalupnom umetku, kasnije načinjenog brzom prototipnom tehnologijom 3D laserskog tiskanja metalnog praha (DMLS). Predstavljena su ograničenja i prednosti hlađenja po obliku te stvarna usporedba temperatura kalupa između ciklusa i skraćivanje vremena ciklusa radi optimalnog odvođenja topline. U članku ćemo predstaviti poliuretan kao matricu za izradu kompozita, utjecaj dodanog ubrzivala, naknadno umreživanje, prije nego li su postignuta konačna mehanička svojstva te mehanička i toplinska svojstva laminata s poliuretanskom matricom. camLine GmbH Tecos zajedno s alatnicom Bizjan orodjarstvo u okviru projekta sufinanciranog preko MGRT natječaja RRI u lancima i mrežama vrijednosti: Sklop 2 Poticaji za RR projekte (TRL 6-9) razvija novi koncept alata, koji bi omogućio injekcijsko prešanje različitih proizvoda u jednom alatu. Alat ćemo opremiti s posebnim aktuatorskim sustavom i upravljanjem, koji će omogućavati autonomnu regulaciju izbora kalupne šupljine i prilagođavanje ubrizgavanja 4 proizvoda potpuno različitog oblika. U članku ćemo prikazati ograničenja i tehnološke izazove, koje smo morali premostiti pri razvoju prototipa samoregulirajućeg fleksibilnog alata. Prikazati ćemo razvojnu fazu izrade koncepta alata i dati dizajnerska ograničenja povezana s konstrukcijom alata i procesom injekcijskog prešanja. Sa ciljanom konstrukcijom alata smo htjeli postići troškovno učinkovito injekcijsko prešanje potpuno različitih proizvoda u manjim serijama na troškovno povoljan način, što ćemo i prikazati u članku. TECOS