Method and apparatus of friction welding

A technology of friction welding and welding parts, which is applied in welding equipment, high-frequency current welding equipment, non-electric welding equipment, etc., and can solve problems such as ugly appearance
CN101549436AInactive Publication Date: 2009-10-07TOYOTA IND CORP +1
0 Cites 20 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
TOYOTA IND CORP
Publication Date
2009-10-07
Estimated Expiration
Not applicable · inactive patent

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

This invention relates to method and apparatus of friction welding. A friction welding method includes a step of friction welding a first workpiece and a second workpiece together by pressing the first workpiece against the second workpiece relatively while rotating the two workpieces relatively, and a step of annealing the friction welded workpiece at a position adjacent to a welded portion thereof with high frequency induction heating.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The present invention relates to a method and apparatus for friction welding a pair of workpieces together by pressing one of the workpieces against the other while rotating the workpieces relative to each other. Background technique

[0002] When tensile strength tests are performed on workpieces bonded by friction welding a pair of workpieces together, the bonded workpieces typically break at their heat-affected zone adjacent to the joint of the workpieces. When annealing a bonded workpiece, the heat-affected zone of the annealed workpiece is enhanced. Thus, when the annealed workpiece is tested for tensile strength, the annealed workpiece breaks at its base. On the other hand, Japanese Unexamined Patent Application Publication No. 6-248350 discloses welding a pair of pipes together by means other than friction welding. However, in this publication, the tubes joined by welding a pair of tubes are heat-treated by high-frequency induction heating at ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More