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Method and apparatus for joining pins and wires

  • US 6,518,532 B1
  • Filed: 11/29/1999
  • Issued: 02/11/2003
  • Est. Priority Date: 11/29/1996
  • Status: Expired due to Fees
First Claim
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1. A method of fusing a pin and a wire to reliably form a good quality fusion joint comprising:

  • placing the pin and wire in a notch of a lower fusing electrode so that the pin is initially held by the lower electrode in spaced relation to the wire, contacting the pin with an upper fusing electrode, applying fusing current through the upper electrode, pin and portion of the lower electrode in contact with the wire to heat the upper electrode and said portion, transferring the heat from said upper electrode to the pin and from said portion to the wire prior to the pin making contact with the wire, moving said upper and lower electrodes relatively toward each other to apply fusing pressure to and current through the heated pin and wire, whereby the heated wire and pin are squeezed together to form a fused joint.

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