从工艺设计、胎具设计、控制焊接变形和缺陷、表面处理等各环节实行严格的品质控制，多年来生产出多种型号的车架全部为合格品。
This paper describes the methods of controlling the frame quality in terms of process design, mould design, control of deformation and defects from welding surface treatment, etc.
深入了解帽形强制弯曲变形规律对指导这类弯曲件工艺设计具有重要意义。
Understanding the deformation characters of Cap-type constraint bending process is very important to guide the design of technology for bent parts.
分析台车体原工艺方案产生缺陷的原因，对工艺进行了改进，并重新设计了工装，消除了裂纹和变形缺陷，延长了工装使用寿命。
The article analyzes the cause of producing defects with original procedures and put forth an improved procedure and new-designed fixtures to eliminate cracks and deformation defects.
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