PROBLEM TO BE SOLVED: To provide a laser weld structure of a metal sheet laminate that allows easy fixation of a laminate comprised of three or more metal sheets in a manner not perforating a laser weld part, a vehicular door sash including the laser weld structure of the metal sheet laminate, a laser welding method for the metal sheet laminate, and a method for manufacturing the vehicular door sash using the laser welding method for the metal sheet laminate.SOLUTION: A laser weld structure of a metal sheet laminate comprises: a first outer metal sheet 23; a second outer metal sheet 24; and an intermediate metal sheet 22 which is positioned between the first outer metal sheet and the second outer metal sheet and constitutes a laminate with the first outer metal sheet and the second outer metal sheet; a first laser weld part W1 which is welded from a front surface 23a side of the first outer metal sheet and reaches the intermediate metal sheet but not a front surface 24a of the second outer metal sheet; and a second laser weld part W2 which is welded from a front surface side of the second outer metal sheet and reaches the intermediate metal sheet but not the front surface of the first outer metal sheet.
【課題】三枚以上の金属板からなる積層体をレーザ溶接部が貫通しない態様で容易に固定することが可能な金属板積層体のレーザ溶接構造、金属板積層体のレーザ溶接構造を備えた車両用ドアサッシュ、金属板積層体のレーザ溶接方法、及び金属板積層体のレーザ溶接方法を用いた車両用ドアサッシュの製造方法を提供する。【解決手段】第一外側金属板23と、第二外側金属板24と、第一外側金属板と第二外側金属板との間に位置し第一外側金属板及び第二外側金属板と積層体を構成する中間金属板22と、第一外側金属板の表面23a側から施した、中間金属板に到達しかつ第二外側金属板の表面24aには到達しない第一レーザ溶接部W1と、第二外側金属板の表面側から施した、中間金属板に到達しかつ第一外側金属板の表面には到達しない第二レーザ溶接部W2と、を備える。【選択図】図4
LASER WELD STRUCTURE OF METAL SHEET LAMINATE, VEHICULAR DOOR SASH INCLUDING LASER WELD STRUCTURE OF METAL SHEET LAMINATE, LASER WELDING METHOD FOR METAL SHEET LAMINATE, AND METHOD FOR MANUFACTURING VEHICULAR DOOR SASH USING LASER WELDING METHOD FOR METAL SHEET LAMINATE
金属板積層体のレーザ溶接構造、金属板積層体のレーザ溶接構造を備えた車両用ドアサッシュ、金属板積層体のレーザ溶接方法、及び金属板積層体のレーザ溶接方法を用いた車両用ドアサッシュの製造方法
2015-10-05
Patent
Elektronische Ressource
Japanisch
Europäisches Patentamt | 2015
|LASER WELDING METHOD OF VEHICLE DOOR SASH, AND LASER WELDING METHOD OF METAL MATERIAL
Europäisches Patentamt | 2015
|