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苏联已把等温模锻工艺用于模锻 AMг6铝合金管型零件。按原来工艺,这种带有外环凸台的管型零件是由直径140mm、壁厚30mm 的管
The Soviet Union has used an isothermal forging process for swaging AM-6 alloy pipe parts. According to the original process, this tube with the outer ring boss parts by the diameter of 140mm, wall thickness 30mm tube