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METHOD OF EXTRUDING HOLLOW LIGHT METAL MEMBER, DIE FOR EXTRUDING HOLLOW LIGHT METAL, AND MEMEBER FOR EXTRUDING HOLLOW LIGHT METAL
METHOD OF EXTRUDING HOLLOW LIGHT METAL MEMBER, DIE FOR EXTRUDING HOLLOW LIGHT METAL, AND MEMEBER FOR EXTRUDING HOLLOW LIGHT METAL
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机译:挤出空心轻质金属的方法,挤出空心轻质金属的模具以及挤出空心轻质金属的部件
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摘要
It is an object to realize and establish new extrusion technology for manufacturing a light-metal hollow member (product) having excellent mechanical properties with constant stability and also efficiently manufacturing the product having a strength satisfying a required level at low cost, by using a hollow die such as a bridge die. The object is achieved by dividing and joining/welding a light-metal material with a hollow extrusion die and then extruding the light-metal material to form in a desired cross-sectional shape through a die opening, wherein the strain level applied to the light-metal material after the joining/welding is maintained at 1.8 or more and the extrusion is performed.
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