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Method of and apparatus for manufacturing a joined body

A joint body and contact area technology, which is applied in the field of joint body manufacturing, can solve the problems of difficult current flow and inability to accelerate fusion joint, and achieve the effect of easy joint

Inactive Publication Date: 2007-02-07
HONDA MOTOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Specifically, since the oxide film is an insulator, it is very difficult for current to flow across the oxide film into the molten metal or casting, thereby failing to accelerate fusion bonding

Method used

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  • Method of and apparatus for manufacturing a joined body
  • Method of and apparatus for manufacturing a joined body
  • Method of and apparatus for manufacturing a joined body

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Embodiment Construction

[0032] A method for manufacturing a bonded body preferably implemented according to the present invention and an apparatus for implementing the method will be described in detail below with reference to the accompanying drawings.

[0033] figure 1 A sectional view showing a bonded body manufacturing apparatus 10 according to an embodiment of the present invention. like figure 1 As shown, the joint body manufacturing device 10 has a first machining center 12 and a second machining center 14 that can move toward and away from each other, and a first mold installed on the first machining center 12 and the second machining center 14 respectively. 16 and the second mold 18. The first mold 16 and the second mold 18 face each other and collectively form a cavity 19 therebetween when they are combined with each other.

[0034] The electrode 20 a is embedded in the first mold 16 so as to be flush with the molding surface facing the cavity 19 . The electrode 20a is made of a materia...

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Abstract

Electrodes are embedded respectively in a first die and a second die. A metal workpiece is placed in a cavity defined between the first die and the second die which mate with each other. Then, a molten metal is poured through a passage into the cavity. The molten metal is solidified into a casting, forming a contact region of the metal workpiece and the casting. Thereafter, an electric current is supplied from a power supply between the electrodes across the contact region. The supplied electric current breaks an oxide film that is present on the surface of the metal workpiece, and joins the metal workpiece and the casting in the contact region.

Description

technical field [0001] The present invention contemplates a method and apparatus for manufacturing a joined body comprising metal workpieces and castings joined to each other. Background technique [0002] The advantage of pressing is that it takes less time to process the workpiece, but it is not easy to press the workpiece into complex shapes. In order to press workpieces into complex shapes, it is customary to press individual workpieces into parts of final products, and then join the pressed parts by welding or the like. [0003] However, the conventional process has disadvantages in that it is necessary to have separate molds of different shapes for pressing individual workpieces, and thus requires a large investment in pressing facilities. In addition, since a separate connection process, such as a welding process, is required, it takes a long time to obtain a final product, and it is not easy to increase the efficiency of manufacturing the final product. [0004] Th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22D19/04
CPCB22D19/00B22D45/00
Inventor 村川敏浩北川纯后藤彰沼野正慎
Owner HONDA MOTOR CO LTD