Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
ステンレススチール接合方法
Document Type and Number:
Japanese Patent JP2013508165
Kind Code:
A
Abstract:
Disclosed is a stainless steel joining method which can make a welding bead narrow and deep and prevent fatigue strength from being lowered due to thermal stress, thereby preventing deformation of a product. A stainless steel joining method comprises: a first step of inserting and disposing a thin brazing filler metal between joining surfaces of two stainless steel pieces; a second step of radiating a laser beam onto the joining surfaces to perform a welding process by a contactless laser welder; a third step of filling the brazing filler metal molten in a brazing furnace between the joining surfaces to perform a brazing process; and a fourth step of cooling the brazing filler metal filled between the joining surfaces. According to the stainless steel joining method of the present invention, since a thin brazing filler metal is inserted between stainless steel base metals and a contactless laser welding operation is performed to joining portions, a welding bead can be formed narrow and deep, making it possible to prevent a fatigue strength from being lowered due to thermal stress and the product from being deformed.

Inventors:
Yang, Sung-Pyo
Yoo, Song-Gun
Application Number:
JP2012535108A
Publication Date:
March 07, 2013
Filing Date:
October 07, 2010
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
Kyungdong Navien Co., Ltd.
International Classes:
B23K1/19; B23K1/14; B23K3/00; B23K26/20; B23K28/02; B23K35/14; B23K35/22; B23K35/30; C22C9/00; B23K103/04
Domestic Patent References:
JP2003531731A2003-10-28
JPS59101275A1984-06-11
JP2007533466A2007-11-22
JP2006212639A2006-08-17
JP2003003211A2003-01-08
JP2007098416A2007-04-19
JPH10305378A1998-11-17
JPH01266989A1989-10-24
JPH11277221A1999-10-12
Attorney, Agent or Firm:
Tadashige Ito
Tadahiko Ito
Shinsuke Onuki