id author title date pages extension mime words sentence flesch summary cache txt 6h440r9862p Jiying Liu Friction and Heat Transfer Models for Finite Element Simulation of Metal Forming 2005 .txt text/plain 221 10 43 The lubricant film thickness is analyzed through the Reynolds equation; heat transfer coefficients are obtained from a new model specifically derived for metal forming geometries and surfaces are allowed to roughen according to semi-empirical rules. The current representations of constant friction and heat transfer coefficients is a serious shortcoming of modern finite element codes and leads directly to their limited capability to serve as a predictive design tool. cache/6h440r9862p.txt txt/6h440r9862p.txt