Friction stir welding process using a retractable pin with retraction of the retractable pin at the end of the welded path

Friction stir welding process using a retractable pin with retraction of the retractable pin at the end of the welded path

  • CN 101,495,264 A
  • Filed: 04/03/2007
  • Published: 07/29/2009
  • Est. Priority Date: 04/20/2006
  • Status: Active Application
First Claim
Patent Images

1. one kind is passed through two plates (20 of agitating friction, 21) method of formation weld seam, described two plates are respectively upper plate (21) and lower plate (20), described weld seam is formed on first end and be called terminal second end between different with described first end that is called top, described method is used the welder (25) that has flexible pin (29), said method comprising the steps of:

  • -locate and keep described two plates (20,21) along the overlay region (24) contact, be in the relative position that needs after the welding;

    -described welder is being contacted with one or two plate near in the zone at described weld seam top;

    -vertically weld two plates by moving described welder up to described weld seam end;

    -continue along extending to the described weld seam end described welder of path movement (25) in addition;

    -extend to described weld seam end part in addition in the path of described welder (25) described flexible pin (29) is shunk, to avoid occurring welding hole.

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