Laser welding method of die cast member, method for manufacturing die cast product, and die cast product
AssigneeKabushiki Kaisha Toshiba
InventorTetsuo SAKAI
Life of this patent
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Abstract
A laser welding method of a die cast member includes forming a first melted portion by irradiating a first laser beam on a planned welding portion including a contact surface between a first member and a second member, and welding the first member and the second member by forming a second melted portion by irradiating a second laser beam on the planned welding portion after the first melted portion is formed; the first member includes a metal; and the second member is formed by die casting. A width of the first melted portion is not more than half of a width of the second melted portion. A depth of the first melted portion is deeper than a depth of the second melted portion.
Claims9
A laser welding method of a die cast member, comprising:
- forming a first melted portion by irradiating a first laser beam on a planned welding portion including a contact surface between a first member and a second member, the first member including a metal, the second member being formed by die casting;
- and
- welding the first member and the second member by forming a second melted portion by irradiating a second laser beam on the planned welding portion after the first melted portion is formed,
- a width of the first melted portion being not more than half of a width of the second melted portion,
- a depth of the first melted portion being deeper than a depth of the second melted portion.
A method for manufacturing a die cast product, comprising:
- forming a first melted portion by irradiating a first laser beam on a planned welding portion including a contact surface between a first member and a second member, the first member including a metal, the second member being formed by die casting;
- and
- welding the first member and the second member by forming a second melted portion by irradiating a second laser beam on the planned welding portion after the first melted portion is formed,
- a width of the first melted portion being not more than half of a width of the second melted portion,
- a depth of the first melted portion being deeper than a depth of the second melted portion.
A die cast product, comprising:
- a first member including a metal;
- a second member formed by die casting and welded to the first member;
- and
- a melted portion formed between the first member and the second member,
- a protrusion having a line configuration or a plurality of dot configurations and being formed in a lower surface of the melted portion.
Dependencies are inferred from the claim text.