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AlMgSi based alloy extrusion section null for the side member
AlMgSi based alloy extrusion section null for the side member
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机译：基于AlMgSi的合金挤压段对侧梁无效
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摘要
PROBLEM TO BE SOLVED: To provide an Al-Mg-Si alloy extruded shape material for a side member free from the generation of cracking in the case of being applied with compressive deformation at the time of a collision, high in energy absorbing efficiency and excellent in collapse characteristics. ;SOLUTION: This Al-Mg-Si alloy extruded shape material for a side member excellent in crushing characteristics is the one in which, in an extruded shape material having a compsn. contg., by weight, 0.6 to 1% Si, 0.5 to 0.9% Mg, 0.4 to 0.8% Cu (where 0.4% is not included), 0.1 to 0.4% Fe, 0.2 to 0.6% Mn, 0.001 to 0.1% Ti, 0.0001 to 0.004% B, 0.05 to 0.3% Cr and/or 0.05 to 0.25% Zr and the balance Al with inevitable impurities, the proof stress is 250 to 290 MPa, and the ratio between the proof stress and the tensile strength is ≥0.85.;COPYRIGHT: (C)2000,JPO
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