The cold stamping technology and die of two size range of dust cover were compared, there were some guidance roles on production.
对两种尺寸范围的防尘盖的冷冲压工艺及模具进行了对比分析，对生产具有一定指导作用。
Using high speed cold upsetting-extruding technology can improve quality of three-pin gear, reduce mechanical process and decrease the production costs.
采用了高速冷镦挤成形工艺，可提高三销齿轮的质量、减少机械加工及降低产品成本。
The advantage of the gear axis with cold extrusion technology replacing metal cutting working production are narrated, and the technological analysis for the gear axis part is conducted.
叙述了采用冷挤压工艺代替切削加工生产齿轮轴的优点，并对齿轮轴零件进行了工艺分析。
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