A new approach to scoring airbag opening flaps on the B-side of automotive instrument-panel skins is said to achieve high precision and reliability at significantly reduced cost and operating complexity.

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A new approach to scoring airbag opening flaps on the B-side of automotive instrument-panel skins is said to achieve high precision and reliability at significantly reduced cost and operating complexity. Introduced by the German parent of KraussMaffei Corp., Florence, Ky., at the K 2007 show in Dusseldorf, the new system differs from conventional approaches in how the skin material is held for scoring and how the score is controlled. I.P. scoring depth is critical, and conventional systems depend on a high-precision robot as well as vacuum in the tool to hold the skin in place. KraussMaffei's new IP scoring cell defines the score depth mechanically by replacing the usual fixture with a high-precision, freely-rotating bearing, a force transducer, and a knife-all mounted on a rigid C-frame that is manipulated by a robot. A tool with vacuum is no longer needed, saving cost and complexity. Also, since the C-frame bearing/knife assembly is calibrated to monitor the scoring depth, a standard robot can be used, further reducing capital cost. Operating costs are also reduced, since a specialist is not needed to program the robot. Adjusting residual wall thickness requires only a correction of the actuator position without changes in the robot motion. KM says its approach increases the consistency and repeatability of scoring by eliminating human variables such as differences in placing the skin in the vacuum-equipped tool. (859) 283-0200 . www.kraussmaffei.com

KraussMaffei
Reaction Process Machinery
7095 Industrial Rd. Florence, KY 41042-2930
Phone (606) 283-0200 Fax (606) 283-0311