Title:
金属板の接合方法及び接合装置
Document Type and Number:
Japanese Patent JP4500884
Kind Code:
B2
Abstract:
A pair of upper and lower pressure rollers (3, 4) is disposed so that their axes (15, 16) are tilted in a horizontal plane in respective directions opposite to each other with respect to a straight line perpendicular to a welding line of a joint portion J. The pressure rollers (3, 4) are positively driven by corresponding electric motors (63, 64) to thereby roll the joint portion. Thus, steps defined at the joint portion can be smoothed and a step gradient can be reduced to ensure a high degree of joint strength. The respective tilting directions of the axes (15, 16) of the pressure rollers (3, 4) are such that respective travel-directional portions (3A, 4A) of the pair of pressure rollers (3, 4) face in the horizontal plane toward the corresponding directions opposite to the extending directions of metal plates (5, 6) concerning a metal material with which the pressure rollers (3, 4) first come into contact. Thus, it is possible to prevent a step portion from being interfolded into the base material of the metal plates (5, 6). Thus, a stress concentration factor can be reduced and the steps S defined at the joint portion can be smoothed, thereby enhancing the quality of the joint portion.
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Inventors:
Shinichi Kaga
Tominaga Noriaki
Takehiko Saito
Onose Mitsuru
Yoshimura Taiji
Hirotomo Takata
Yujiro Watanabe
Satoshi Zenitani
Ikuo Wakamoto
Tominaga Noriaki
Takehiko Saito
Onose Mitsuru
Yoshimura Taiji
Hirotomo Takata
Yujiro Watanabe
Satoshi Zenitani
Ikuo Wakamoto
Application Number:
JP2009503360A
Publication Date:
July 14, 2010
Filing Date:
July 11, 2008
Export Citation:
Assignee:
Mitsubishi Hitachi Steel Machinery Co., Ltd.
International Classes:
B23K37/08; B21B15/00; B21D1/02; B23K11/04; B23K11/06; B23K31/00; B23K20/12
Domestic Patent References:
| JP2003071567A | 2003-03-11 | |||
| JPH09141449A | 1997-06-03 | |||
| JPH0577054A | 1993-03-30 |
Attorney, Agent or Firm:
Kasuga Toshiaki