Friction stir welding apparatus for overlapped joints

Friction stir welding apparatus for overlapped joints

  • CN 102,049,610 B
  • Filed: 03/30/2010
  • Issued: 11/05/2014
  • Est. Priority Date: 10/29/2009
  • Status: Active Grant
First Claim
Patent Images

1. for a friction stir welding apparatus for lap joint, described device is provided with rotor and the probe with shoulder and axis, described probe be arranged to from the shoulder of rotor stretch out and with concentric setting the in described axis of rotor,Wherein, helical groove is formed on probe periphery surface, from probe tip, to described shoulder, extend, when described probe inserts a pair of overlap joint member to be joined, helical groove extends to more than the position of the overlap joint plane of described a pair of overlap joint member to be joined from probe tip;

  • The external diameter of the peak part of described groove forms from described probe tip and reduces gradually to described shoulder;

    And depth of groove forms from probe tip and reduces gradually to described shoulder;

    And the upper current downflow of the described a pair of overlap joint member to be joined occurring because of helical groove reduces gradually towards shoulder.

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