Manufacturing method of a structure body
AssigneeHitachi, Ltd.
InventorsTakeshi Kawasaki, Masakuni Ezumi, Yoshihiko Ina
Life of this patent
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Abstract
When an insertion force of a rotary tool 340 has searched, it is made clearly that the force at the insertion initial time is large and when a friction stir joining is an ordinary operation time, the force becomes small. According, it is preferable to make small the insertion force at the insertion initial time. To members 20, 30 to be subjected to a joining at a position where the friction stir joining starts a hole 50 is opened, and this hole 50 after the rotary tool 340 has inserted, since a move of the rotary tool 340 is made to begin, a lowering of the insertion force can be attained.
Claims19
A method of manufacturing a structural body, comprising the steps of:
- starting a friction stir welding by inserting a rotary tool in a preformed hole having been formed by drilling which is provided at a starting portion of a welding line between two members;
- and
- next, moving said rotary tool along said welding line.
A method of manufacturing a structural body, comprising the steps of:
- fixing abutting two members to a bed;
- welding a starting end side of a welding line of said two members and welding the other end side from the starting end side;
- on said welding line at the starting end side, forming a hole in an insertion direction of a rotary tool by drilling;
- inserting the rotary tool into said hole at the starting end side while rotating said rotary tool and starting a friction stir welding;
- and
- moving said rotary tool along said welding line.
A method of manufacturing a structural body by welding members using friction stir welding, comprising the steps of:
- fixing abutting two hollow frame members to a bed;
- welding a starting end side of a welding line of said two hollow frame members and welding the other end side from the starting end side;
- on said welding line at the starting end side, forming a hole in an insertion direction of a rotary tool by drilling;
- inserting the rotary tool in said hole at the starting end side while rotating said rotary tool and starting friction stir welding;
- and
- moving said rotary tool along said welding line.
Dependencies are inferred from the claim text.