Metal deforming – With use of control means energized in response to activator... – Sensing tool or tool-linked part
Patent
1980-10-29
1983-10-11
Crosby, Gene
Metal deforming
With use of control means energized in response to activator...
Sensing tool or tool-linked part
72389, 364476, B21D 502
Patent
active
044084714
ABSTRACT:
An electronic adaptive control system for use with hydraulic press brakes to provide compensation for material spring back to accurately produce a desired bend angle in the work piece with a single ram stroke. Fixed input parameters associated with the press brake and material properties, together with ram position and force data are continuously input to a digital computer which calculates the precise point of punch penetration necessary to reverse ram movement in order to produce the desired bend angle in the work piece. By using in-process measurements, a significant savings in machine set-up-time can be achieved in order to produce an accurate bend angle in the work piece the first time and every time.
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Allison Blair
Gossard David C.
Hardt David
Stelson Kim A.
Webb, Jr. R. Davis
Crosby Gene
Massachusetts Institute of Technology
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