In this paper, the cold extrusion process of 7a04 aluminum alloy was developed for the production of a double-cup workpiece with a deep hole.
针对一种具有深孔的双杯形零件，对7a04铝合金复合冷挤压工艺进行了研究。
In this paper, the cold extrusion process of 7a04 aluminum alloy was developed for the production of a double-cup workpiece with a deep hole.
针对一种具有深孔的双杯形零件，对7a04铝合金复合冷挤压工艺进行了研究。
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