Workpiece to be spot-welded
A workpiece and spot welding technology, applied to the edge of workpieces, manufacturing tools, welding equipment, etc., can solve problems such as difficult quality management, reduced strength, and poor identification.
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[0026] Embodiments of the present invention will be described below with reference to the drawings. Such as figure 1 As shown, a side sill 2 extending in the front-rear direction of the vehicle body is provided at the side of the vehicle body 1 at its lower portion. The illustrated example is a four-door vehicle, and a center pillar 3 is provided between the front and rear door openings.
[0027] Such as figure 2 As shown, the center pillar 3 includes two workpieces, namely, a center pillar outer 5 formed as a part of the outer panel 4 and a center pillar inner 6 overlapping the center pillar outer 5 from the inside of the vehicle interior. Additionally, if image 3 As shown, between the center pillar outer member 5 and the center pillar inner member 6, a center pillar reinforcing plate 7 is provided in a sandwiched state.
[0028] The spot welding of the inner member and the outer member of the frame including the door opening of the center pillar 3 configured in this wa...
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