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Friction stir welding apparatus and method and processing apparatus and method

  • US 20040173663A1
  • Filed: 03/15/2004
  • Published: 09/09/2004
  • Est. Priority Date: 09/12/2001
  • Status: Abandoned Application
First Claim
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1. A friction stir welding apparatus for joining members of a work by inserting a rotating tool into the work and moving the rotating tool relative to the work, comprising a controller for controlling a relative distance in a tool insertion direction between the tool and the work or an insertion depth of the tool into the work so that a load factor or electric current of a spindle motor for rotating the tool is within a predetermined range.

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