Model for the Calculation of Demoulding Force for Polyurethane Parts

  • Peter Zentay
  • Zoltán Zoller
  • Gusztáv Arz
  • László M. Vas


The manufacturing of polyurethane (PU) parts has an ever-increasing trend due to the production of cars. The automation of the demoulding of polyurethane car seats is a current problem the suppliers of car manufacturers have to face. The automation of other processes of seat foam production has already been solved but the problem of demoulding is still a much-investigated subject. To design robot grippers for this process we need to know the value of the demoulding force. We present a mathematical model for the calculation of this force for polyurethane seat-like foams in general. A material model is proposed that uses only those parameters that are available for the factories, and this model is compared with test results.
Keywords: demoulding, polyurethane, material properties
How to Cite
Zentay, P., Zoller, Z., Arz, G. and M. Vas, L. (no date) “Model for the Calculation of Demoulding Force for Polyurethane Parts”, Periodica Polytechnica Mechanical Engineering, 43(2), pp. 197-212. doi: