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Friction welding

  • US 4,735,353 A
  • Filed: 12/30/1986
  • Issued: 04/05/1988
  • Est. Priority Date: 05/10/1985
  • Status: Expired due to Fees
First Claim
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1. A method of friction welding, the method comprising causing relative rotation between a pair of workpieces (70,71) by actuating first and second drive means (20,29), the first drive means (20) being coupled to a primary source of energy, and the second drive means being adapted to store auxiliary energy;

  • bringing the workpieces (70,71) into contact with one another under pressure, whereby the first and second drive means are adapted together to supply sufficient rotational energy to overcome the effects of restrictive torque between the workpieces on initial contact between the workpieces; and

    thereafter continuing actuation of the first drive means (20) to maintain relative rotation between the workpieces (70,71).

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