Removal method of weld bead
AssigneeToyota Jidosha Kabushiki Kaisha
InventorRyo KIMURA
Life of this patent
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Abstract
The method for removing a weld bead includes (a) the steps of preparing a scraper having a higher melting point than the melting points of the base metal and the welding rod; (b) heating the base metal and the welding rod to a temperature lower than the melting points of the scrapers to form a molten pool in which the base metal and the welding rod are fused together; (d) moving the at least part along a second surface of the scraper opposite to the first surface facing the base material, thereby discharging the at least part backward, opposite to the forward movement direction of the scraper in step (c).
Claims5
A removal method of a weld bead, the removal method comprising the steps of:
- (a) preparing a scraper made of a material with a melting point that is higher than a melting point of a base material that is an object of welding and a melting point of a welding rod;
- (b) creating a molten pool in which the base material and the welding rod are fused together, by heating the base material and the welding rod at a temperature lower than the melting point of the scraper;
- (c) separating at least a portion of material making up an elevated portion by the scraper, by moving the scraper to the elevated portion of the bead that is raised from the molten pool above a surface of the base material while the molten pool is molten;
- and
- (d) discharging the at least a portion of the material rearward, in a direction opposite to forward that is a direction of movement of the scraper in the step (c), by causing the at least a portion of the material to move along a second face of the scraper on a side opposite to a first face facing the base material.
Dependencies are inferred from the claim text.