The friction contributes to a deformation of metal sheets at forming motor-car bodies by pressing or pull broaching. The friction coefficients were affected by using some efficient lubricants at processing of deep-drawing and tinned steel sheets. The effects of lubricants and the tool geometry on the value of cup thinning was analyzed by computer simulation with an OPTRIS & FICTURE program. The safe deformation of steel sheets can be increased by 15 % to 30 % when suitable technological lubricants (oil-in-water emulsions) were used.
Wplyw tarcia na niejednorodnosc odksztalcen przy ksztaltowaniu blach karoseryjnych
Effect of friction on strain nonuniformity in car-body sheet metal forming processes
Obrobka Plastyczna Metali ; 11 , 1 ; 13-19
2000
7 Seiten, 8 Bilder, 6 Quellen
Aufsatz (Zeitschrift)
Polnisch
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