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Method of determining the weldability of a part

  • US 4,859,830 A
  • Filed: 10/05/1987
  • Issued: 08/22/1989
  • Est. Priority Date: 10/05/1987
  • Status: Expired due to Fees
First Claim
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1. A method of determining the weldability of a workpiece prior to a welding process by relating weldability to the three-dimensional geometry of a molten weld pool, comprising initiating an arc between a stationary welding torch and the workpiece using a predetermined set of welding parameters to produce the molten weld pool in the workpiece;

  • measuring a natural frequency of oscillation of the molten weld pool a predetermined time following initiation of the arc; and

    comparing the measured natural frequency of oscillation to empirically determined data for the workpiece material to determine the weldability of said workpiece.

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