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A tube is formed by brazing first and second plates, and is connected to a pipe through a connection block being brazed to a contacting surface of the first plate. A brazing material is clad on an inner surface of the first plate opposite to the contacting surface, and a hole penetrating through the

A tube is formed by brazing first and second plates, and is connected to a pipe through a connection block being brazed to a contacting surface of the first plate. A brazing material is clad on an inner surface of the first plate opposite to the contacting surface, and a hole penetrating through the first plate is formed in the first plate at a position corresponding to the connection block. Thus, during brazing, the brazing material clad on the inner surface of the first plate is supplied to the contacting surface through the hole by capillary phenomenon, so that the connection block is brazed to the first plate. As a result, an apparatus formed by brazing plural metal members, such as the tube of an oil cooler, is produced in low cost.

대표청구항 ▼

[ What is claimed is:] [1.]1. An apparatus comprising:a first metal member having a first surface and a second surface opposite to said first surface;a second metal member being bonded to said first metal member on said first surface contacting said second metal member;a first hole penetrating throu

[ What is claimed is:] [1.]1. An apparatus comprising:a first metal member having a first surface and a second surface opposite to said first surface;a second metal member being bonded to said first metal member on said first surface contacting said second metal member;a first hole penetrating through said first metal member, into which said second metal member is inserted;a second hole penetrating through said first metal member from said first surface to said second surface, said second hole being provided at a position different from said first hole; anda brazing material clad on said second surface of said first metal member at least at a position around said second hole,wherein said first metal member and said second metal member are bonded to each other during a brazing, by using a part of the brazing material supplied to said first surface of said first metal member through said second hole.