PURPOSE: A forming method is provided to press-form at a high forming speed while maintaining the horizon of a slide plate. CONSTITUTION: Loads to each driving source of each displacement are calculated while press-forming a work by displacing a slide plate(1). Compensation speed of each driving source to prevent the delay of the driving source against a reference driving source is calculated based on a function to show the delay from an indicate displacement through the speed and the loads by using the loads of each displacement and a forming target speed of one driving source(2). The work is pre-formed by moving each driving source based on the compensation speed(3). The delay of each driving source is measured during the pre-forming(4). The pre-forming is repeated by correcting the compensation speed(6) until the delay of other driving source against the reference driving source is under a certain value(5). The formal press forming is performed at the decided speed when the delay is under the certain value(7). Thereby, the forming is performed in a short time while maintaining the slide plate horizontally.

Title
Press forming method to press-form while horizontally maintaining slide plate with press machine
Application Number
1020030073705
Publication Number
1020040036585
Application Date
October 22, 2003
Publication Date
April 30, 2004
Inventor
Unno Keizo
Futamura Shoji
Assignee
Institute Of Technology Precision Electrical Discharge Works
IPC
B30B 15/20