Metal deforming – With use of control means energized in response to activator... – Sensing tool or tool-linked part
Patent
1997-05-12
1999-08-24
Hail, III, Joseph J.
Metal deforming
With use of control means energized in response to activator...
Sensing tool or tool-linked part
72349, 72350, 72312, 723792, 72 201, 72 202, B21B 3700
Patent
active
059411104
ABSTRACT:
Method and apparatus for TWB forming with adaptive control of movable punch and/or die segments in a manner to maintain a holding force at the weld line by the punch and die segments during at least initial forming of the blank in a manner to control and limit movement of the weld line. A tailor welded metal blank having a weld line is positioned between a punch and a die with the weld line spanning a cavity defined between the punch and the die. One or more individual segments of the punch and of the die are moved in a manner to engage opposite side regions of the weld line to apply a holding force to the weld line. Relative movement of the punch and/or die segments is adaptively controlled during at least initial deformation of the blank by the punch in a manner to maintain the holding force applied to weld line at a selected holding force value to retain the weld line in a plane defined by the punch and die segments, thereby reducing weld line movement. After initial deformation of the blank by movement of the punch to a preset punch location, the punch and die segments can be retracted away from the weld line during subsequent deformation of the blank.
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Cao Jian
Kinsey Brad L.
Hail III Joseph J.
Northern University
Tolan Ed
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