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Method and system of inertia friction welding

  • US 20050218192A1
  • Filed: 03/31/2004
  • Published: 10/06/2005
  • Est. Priority Date: 03/31/2004
  • Status: Abandoned Application
First Claim
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1. A method of forming inertia friction welds that results in work parts welded with a specified angular orientation with respect to each other, comprising:

  • loading a sample work part into a rotating chuck attached to a spindle and loading another sample work part into a non-rotating chuck;

    applying torque to the spindle to accelerate the spindle to achieve a predetermined first rotational speed;

    coasting the spindle to achieve a predetermined second rotational speed;

    inertia friction welding together the sample work parts to form a sample weld;

    measuring and storing data related to the deceleration of the spindle during the sample inertia friction weld;

    removing the welded sample work parts from the rotating and the non-rotating chucks;

    calculating a sample deceleration profile of the spindle from the data acquired during the formation of the sample weld;

    loading a production work part into the rotating chuck and loading another production work part into the non-rotating chuck;

    applying torque to the spindle to accelerate the spindle to the predetermined first rotational speed;

    maintaining the predetermined first rotational speed until a rotary position of the spindle matches a calculated value;

    inertia friction welding together the production work parts to form a production weld; and

    controlling torque applied to the spindle during the inertia friction welding of the production work parts so that the spindle deceleration during the formation of the production weld matches the sample deceleration profile of the spindle during the formation of the sample weld and so that the production weld ends in the specified angular orientation of the work parts with respect to each other.

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