POWER STORAGE ELEMENT MANUFACTURING METHOD, AND WELDING CONTROL PROGRAM

PROBLEM TO BE SOLVED: To suppress of occurrence of poor welding by laser welding and to manufacture a conjugate or the like.SOLUTION: A power storage element manufacturing method in which a first component 141, which is any one of a container body 311 and a lid body 312, and a second component 142 which is the other thereof, are brought into contact with each other and are irradiated with laser beam 200 in a direction crossing a boarder line 143, and by relatively advancing an irradiation position of laser beam 200 along the boarder line 143, the first component 141 and the second component 142 are welded, thereby manufacturing a power storage element 300. The method includes: a width direction reciprocation step at which an irradiation position of laser beam 200 is relatively reciprocated in a width direction which crosses an advance direction of the irradiation position of laser beam 200 and crosses an optical axis of laser beam 200 by use of a galvano-scanner for a scanner 102 of laser beam 200; and an optical axis direction reciprocation step at which a focal position 201 of laser beam 200 is relatively reciprocated along the optical axis of laser beam 200 by use of the galvano-scanner for the scanner 102.SELECTED DRAWING: Figure 1 【課題】レーザー溶接による溶接不良の発生を抑制して接合体などを製造する。【解決手段】容器体３１１および蓋体３１２のいずれか一方である第一部材１４１と他方である第二部材１４２とを当接させ、境界線１４３と交差する方向にレーザー光２００を照射し、境界線１４３に沿ってレーザー光２００の照射位置を相対的に進行させることにより第一部材１４１と第二部材１４２とを溶接し、蓄電素子３００を製造する蓄電素子製造方法であって、レーザー光２００の走査装置１０２にガルバノスキャナを用いて、レーザー光２００の照射位置の進行方向と交差し、レーザー光２００の光軸と交差する方向である幅方向にレーザー光２００の照射位置を相対的に往復動させる幅方向往復動ステップと、走査装置１０２にガルバノスキャナを用いて、レーザー光２００の焦点位置２０１をレーザー光２００の光軸に沿って相対的に往復動させる光軸方向往復動ステップとを含む。【選択図】図１