Electric heating – Metal heating – By arc
Patent
1997-06-16
1999-04-27
Evans, Geoffrey S.
Electric heating
Metal heating
By arc
2924358, B23K 2600
Patent
active
058977961
ABSTRACT:
A method and apparatus for in-situ laser welding of a hemmed joint are applicable for, among other things, production of vehicle doors having inner and outer panels to be joined. In a preferred method, the laser welding of a hemmed joint is carried out while a stable condition is maintained between the inner and outer panels. Locating members of a hemming machine are engaged with the metal sheets to be joined and a compressive force is applied to the panels. A plurality of welding units may be sequentially or simultaneously controlled by a computer. The apparatus includes a first portion for vertically locating the hemmed joint and a second portion for horizontally locating the hemmed joint.
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1. "Combining the punching process with laser technology", Automotive Manufacturing International, Robotics and Automation, Ingomar J K Summerauer, Bruderer AG, pp. 67-69.
2. "Door Welding Using a 3000 Watt Multiplexed Nd: YAG Laser", IBEC '96, Body Assembly & Manufacturing, Darrell Stafford, Honda Motor Company, pp. 53-57.
Chrysler Corporation
Evans Geoffrey S.
Pasternak Thomas G.
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