2004-141902 is referenced by 2 patents.

PROBLEM TO BE SOLVED: To provide a press forming method that enables press forming to be performed at high speed while a slide plate is horizontally maintained, in press-forming a workpiece by a press.SOLUTION: There is used a press which pressurizes the slide plate by a plurality of driving sources driven by servo motors. The speed of each driving source is acquired, for the purpose of eliminating delay among the driving sources, by taking one of the speeds of the plurality of driving sources as a target speed in the actual forming, adopting a function that indicates the delay with the driving source speed and its load, and using the load separately obtained. Then, trial forming is repeated on the basis of the speed thus acquired, and the conditions that enable press forming to be performed at high speed while the slide plate is horizontally maintained are derived.

Title
Press forming method
Application Number
2002-307935
Publication Number
2004-141902
Application Date
October 23, 2002
Publication Date
May 20, 2004
Inventor
Unno Keizo
Futamura Shoji
Assignee
Hoden Seimitsu Kako Kenkyusho
IPC
B30B 01/18
B30B 15/14