Taking cylinder nut-protected bolt, one of the cup-shaped parts in the forging parts of DF7C gas engine, as an example, the warm extruding is researched, accordingly, the forming die is designed.
以DF7C型内燃机车锻件中的杯形零件之一——气缸螺栓保护螺母为例，进行温挤压工艺研究，并据此设计出了成形模具。
Taking cylinder nut-protected bolt, one of the cup-shaped parts in the forging parts of DF7C gas engine, as an example, the warm extruding is researched, accordingly, the forming die is designed.
以DF7C型内燃机车锻件中的杯形零件之一——气缸螺栓保护螺母为例，进行温挤压工艺研究，并据此设计出了成形模具。
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