Apparatus for securing a yoke to a tube using magnetic pulse welding techniques
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United States of America Patent
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Jun 21, 2005
Grant Date -
Nov 27, 2003
app pub date -
Mar 5, 2003
filing date -
Mar 6, 2002
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An apparatus for supporting a workpiece, such as a yoke having a body portion and a pair of opposed yoke arms, during a magnetic pulse welding operation includes a lower jaw, an upper jaw, and a support pin extending therebetween. During the magnetic pulse welding operation, the lower and upper jaws of the support apparatus engage the opposed yoke arms, and the support pin extends through respective openings formed through the opposed yoke arms. The support apparatus can also include a counter die that is disposed between the lower jaw and the upper jaw and has an arcuate recess formed therein that receives the outer portions of the opposed yoke arms therein. Lastly, the support apparatus can further include a pair of positioning rails that engage the body portion of the yoke. As a result, the support apparatus prevents deformation of the opposed yoke arms and absorbs shock waves that can be propagated through the yoke during the magnetic pulse welding operation.
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