blank column [计] 空白列
- In this paper, the clod extrusion upsetting technology of aluminium alloy for the square head column stopper was analysed, the cold extrusion upsetting part was designed, the blank figure and the d
分析了硬铝合金方头柱塞件的冷挤镦工艺,设计了方头柱塞冷挤镦件图,计算及选用了毛坯形状及尺寸,验算了许可变形程度,选择了冷成形用的设备,拟制了冷挤镦工艺前的毛坯处理并设计了方头柱塞冷挤镦模具结构。
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