TY - JOUR AU - Zentay, Peter AU - Zoller, Zoltán AU - Arz, Gusztáv AU - M. Vas, László PY - 1999/01/01 Y2 - 2024/03/28 TI - Model for the Calculation of Demoulding Force for Polyurethane Parts JF - Periodica Polytechnica Mechanical Engineering JA - Period. Polytech. Mech. Eng. VL - 43 IS - 2 SE - DO - N/A UR - https://pp.bme.hu/me/article/view/1474 SP - 197-212 AB - The manufacturing of polyurethane (PU) parts has an ever-increasing trenddue to theproduction of cars. The automation of the demoulding of polyurethane carseats is acurrent problem the suppliers of car manufacturers have to face. Theautomation of otherprocesses of seat foam production has already been solved but the problemof demouldingis still a much-investigated subject. To design robot grippers for thisprocess we need toknow the value of the demoulding force. We present a mathematical model forthecalculation of this force for polyurethane seat-like foams in general. Amaterial model isproposed that uses only those parameters that are available for thefactories, and this model is compared with test results. ER -