PROBLEM TO BE SOLVED: To provide a laser welding method of a metal material a pair of metal members are bonded by butting and welding end surfaces of the members, in which laser welding can be performed without requiring precise gap management.SOLUTION: A laser welding method of metal material has the steps of: when a pair of metal members are seen from a side face, forming an acute angle corner part at least on one end part of the pair of butt end surfaces; butting a butt end surface of the one metal member and a butt end surface of the other metal member in a positional relation where the corner part having an acute angle of the one metal member is protruded from the butt end surface of the other metal member when seen from a side face; and irradiating the acute angle corner part of the one butt end surface protruded from the butt end surface of the other metal member with laser beam to weld butt end surfaces of the plurality of metal members.

    【課題】一対の金属部材を、その端面を突き合わせて溶接して結合する金属材料のレーザ溶接方法において、精密なギャップ管理を要することなくレーザ溶接することができるレーザ溶接方法を得る。【解決手段】一対の金属部材を側面視したとき該一対の突合せ端面の少なくとも一方の一端部に、鋭角コーナー部を形成するステップ;上記一方の金属部材の突合せ端面と、他方の金属部材の突合せ端面とを、側面視で上記一方の金属部材の上記鋭角をなすコーナー部が他方の金属部材の突合せ端面より突出する位置関係で突き合わせるステップ;及び上記他方の金属部材の突合せ端面より突出している上記一方の突合せ端面の鋭角コーナー部にレーザ光を当てて上記複数の金属部材の突合せ端面を溶接するステップ;を有する金属材料のレーザ溶接方法。【選択図】図1


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    Title :

    LASER WELDING METHOD OF VEHICLE DOOR SASH, AND LASER WELDING METHOD OF METAL MATERIAL


    Additional title:

    車両用ドアサッシュのレーザ溶接方法及び金属材料のレーザ溶接方法


    Contributors:

    Publication date :

    2015-11-16


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B60J WINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILAR DEVICES FOR VEHICLES , Fenster, Windschutzscheiben und bewegbare Dächer, Türen oder Ähnliches für Fahrzeuge / B23K Löten , SOLDERING OR UNSOLDERING



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