PRESS FORMING DEVICE, PRESS FORMING METHOD, COMPUTER PROGRAM, AND RECORDING MEDIUM

摘要

A press forming device includes: material characteristic input means for inputting at least one of the following material characteristics: material sheet thickness, yield strength, 0.2% proof stress, tensile strength, elongation, n value, r value, stress-distortion relation equation, hardness, temperature, surface roughness, friction coefficient, and lubricant film thickness; state amount detection means for measuring at least one of the following state amounts: punch reaction during forming, punch reaction, meta l mold temperature, metal mold distortion amount, work deformation amount, and work temperature; processing condition calculation means for calculating at least one of the following processing conditions from the material characteristic inputted by the material characteristic input means and the state amount during formation measured by the state amount detection means: forming speed, hold-down force, and metal mold temperature; and processing condition control means for controlling at least one of the punch or die movement speed, temperature, and the hold-down force according to the processing condition calculated by the processing condition calculation mean s.