机筒在五轴加工中心上精密加工，内孔和销孔定位准确，精密度高。
Machine barrels are precisely processed at the Five-ax Machining Center with high accuracy and locations of inner bore and pinhole are nicety.
分析和应用结果表明，造成销孔凸缘裂纹的原因是制造过程中定位误差等引起的冲击力、销孔的凸缘曲线结构不合理及应力三个因素引起的。
The result of the analysis and application show that the crack of pinhole rib is caused by the impact produced by fix error, the unreasonable structure of pinhole rib and internal stress.
阐述了定位销和定位孔引起工件的定位误差对零件轮廓边切割偏差的影响机理。
This paper expatiated on the influencing mechanism of part's outline cutting deviation due to the locating faults owing to the locating pins and locating holes.
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