Analyzing the craft features of a punching piece, ascertain the process and scheme of a progressive die blank layout, and the design of main die working parts and final assembly structures.
通过该冲件特点的工艺分析，确定级进模排样方案过程和模具主要工作零件及模具总装结构设计。
It must be developed and implemented in the production of the main beam assembly and welding rigorous process, which control the main beam assembly and welding.
这就要求必须在生产中制定并严格执行主梁装配焊接工艺来控制主梁的装配焊接质量。
Based on pre-tighten moment in the process of assembly, the analytical model of the main reduce is established through theoretical analysis of the connection between screwed moment and axle force.
基于装配过程中预紧需要的预紧力矩，通过理论分析获得拧紧力矩和轴向力的关系，建立了主减速器总成装配中的力学模型。
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