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METHOD FOR LASER BEAM WELDING OF SHOCK-ABSORBING MEMBER HAVING EXCELLENT SHOCK ABSORPTION CHARACTERISTIC AGAINST AXIAL COLLAPSE
METHOD FOR LASER BEAM WELDING OF SHOCK-ABSORBING MEMBER HAVING EXCELLENT SHOCK ABSORPTION CHARACTERISTIC AGAINST AXIAL COLLAPSE
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机译:具有抗轴向塌陷的优良减震特性的减震构件激光束焊接方法
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摘要
PROBLEM TO BE SOLVED: To prevent a break of welded metal and to obtain an excellent shock absorption characteristic. SOLUTION: In the method for welding with a laser beam a steel palate 1 having a hat-shaped cross section which forms a shock absorption member having a closed cross sectional structure and a flat steel plate 2 or a steel plate having a hat-shaped cross section at the flange parts 3 of the steel plate having a hat-shaped cross section, the welding is continuously performed in a way that the width Wb of molten zone on the lapped face of the flange part is set at =1.4 and =3.0 times the plate thickness t.
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