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The AlMgSi based alloy extrusion section and its production manner null for the side member
The AlMgSi based alloy extrusion section and its production manner null for the side member
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机译：AlMgSi基合金挤压段及其生产方式对侧梁无效
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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 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, 0.8 to 1.2% Si, 0.6 to 0.9% Mg (where Si/Mg1.2), 0.1 to 0.4% Fe, 0.2 to 0.5% Mn, 0.05 to 0.25% Cr and/or 0.05 to 0.25% Zr (where Mn+Cr+Zr=0.35 to 0.7%), 0.001 to 0.1% Ti, 0.0001 to 0.004% B and the balance Al with inevitable impurities, the internal structure of the extruded shape material is mainly composed of the fibrous one.;COPYRIGHT: (C)2000,JPO
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