  The paper extracts the process parameters from a sheet metal part model
(B-Rep). These process parameters can be used in sheet metal manufacturing to
control the manufacturing operations. By extracting these process parameters
required for manufacturing, CAM program can be generated automatically using
the part model and resource information. A Product model is generated in
modeling software and converted into STEP file which is used for extracting
B-Rep which interned is used to classify and extract feature by using sheet
metal feature recognition module. The feature edges are classified as CEEs,
IEEs, CIEs and IIEs based on topological properties. Database is created for
material properties of the sheet metal and machine tools required to
manufacture features in a part model. The extracted feature, feature's edge
information and resource information are then used to compute process
parameters and values required to control manufacturing operations. The
extracted feature, feature's edge information, resource information and process
parameters are the integral components of the proposed process information
model for sheet metal operations.
