  The stability ofthe proportional--integral--derivative (PID)controlof
temperature in the spark plasma sintering (SPS) process is investigated.ThePID
regulationsof this process are tested fordifferent SPS toolingdimensions,
physical parameters conditions,andareas of temperature control. It isshown
thatthe PID regulation quality strongly depends on the heating time lag between
the area of heat generation and the area of the temperature control. Tooling
temperature rate maps arestudied to revealpotential areas forhighlyefficientPID
control.The convergence of the model and experiment indicatesthat even with
non-optimal initial PIDcoefficients, it is possible to reduce the temperature
regulation inaccuracy to less than 4K by positioning the temperature control
location in highlyresponsiveareas revealed by the finite-element calculationsof
the temperature spatial distribution.
