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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

Inactive Publication Date: 2009-10-07
TOYOTA IND CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In this case, the outer surface of the bonded workpiece is oxidized and has an unsightly appearance

Method used

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  • Method and apparatus of friction welding
  • Method and apparatus of friction welding
  • Method and apparatus of friction welding

Examples

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Embodiment Construction

[0016] The following will refer to Figures 1 to 8 Embodiments of the present invention are described. refer to figure 1 , the friction welding device 1 includes a base 8 , a first holder 2 (spindle unit) and a second holder 3 . A guide 6 is installed at a position adjacent to the left end of the pedestal 8 . The first holder 2 is slidably installed with respect to the guide 6 and moved along the guide 6 by a thrust motor (not shown). The second holder 3 is immovably mounted on the pedestal 8 at its right end. The first holder 2 has a chuck 2A to detachably hold a round bar-shaped first workpiece W1. On the first holder 2 is mounted a motor 4 operable to rotate the chuck 2A around its axis. Also, the second holder 3 has a chuck 3A to detachably hold a round bar-shaped second workpiece W2. On the second holder 3 is mounted a motor 5 operable to rotate the chuck 3A around its axis.

[0017] A high-frequency induction heater 7 is mounted on the first holder 2 to inductivel...

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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.

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

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K20/12C21D9/50C21D1/26C21D1/42
CPCB23K20/1205B23K13/015B21C23/08B23K20/12C21D1/42
Inventor 川浦广一水谷明
Owner TOYOTA IND CORP
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