Factors influencing friction in steel sheet forming

The strip drawing test of sheet metal was used in the simulation of the ste el sheet/steel tool friction contact conditions during a drawing operation. As the factors produce a dispersion effect on friction, the following vari ables were chosen: sample orientation, lubricant, velocity of sample displa cement, plastic strain and contact pressure. The average friction coefficie nt was calculated from experimental data and a linear regression model was build to predict the dispersion effect. (C) 2000 Elsevier Science B.V. All rights reserved.