Welding method
AssigneeToyota Jidosha Kabushiki Kaisha
InventorsToru Hioki, Atsushi Kawakita, Shuhei Ogura, Ryosuke Kawai, Takashi Goto, Kazuho Takishita
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Abstract
Partial welding of partially joining together two metal plates by melting at least one area inside a joining region of the metal plates is performed. After a lapse of a predetermined time from completion of the partial welding, main welding of joining together the metal plates by melting the joining region entirely is performed.
Claims9
A welding method of welding together a plurality of overlapping metal plates along a preset joining region, wherein the plurality of overlapping metal plates includes an upper plate and a lower plate, the welding method comprising:
- performing partial welding of partially joining together the metal plates by melting at least one area inside the joining region of the metal plates, by using a laser beam irradiated from above the upper plate, wherein a position of a front end surface of the lower plate protrudes from a position of a front end surface of the upper plate, and wherein the at least one area inside the joining region is located along a weld line where the front end surface of the upper plate overlaps an upper surface of the lower plate;
- and
- after a lapse of a predetermined time from completion of the partial welding, performing main welding of joining together the metal plates by melting the joining region entirely.
Dependencies are inferred from the claim text.