| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a laser beam welding method which is made easily applicable to the welding of a panel having a complicated shape by improved the adhesive property or the fixability to a weld base material of itself by using a solid material having a low melting point as spacers for ensuring a prescribed gap between the weld base materials. <P>SOLUTION: The low melting point solid material 1 such as a brazing filler metal, paraffin wax or the like which are molten by thermal effect during welding are arranged like dots in the vicinity of a weld line Lw. Gas in the plating layer of the base material is discharged through the gap G which is physically ensured between the base materials (plated steel sheets, for example) W1, W2 by interposition of the low melting point solid materials 1. It contributes to the improvement of the adhesiveness between mutual base materials W1, W2 that the low melting point solid material 1 is molten by the thermal effect during welding and is extended in the gap G. <P>COPYRIGHT: (C)2008,JPO&INPIT</p> |
