T/CCMI 11-2021
大型热轧环形锻件机械加工余量与公差
Design specification for machining allowance and tolerance of large hot rolled ring forgings
2021 -02-05 发布
2021-03- 01 实施
目 次
前言.................................................................1
1 范围.........................................1
2 规范性引用文件..........................1
3 术语和定义..........................................................1
4 余量与公差设计影响因素 .......................................................3
4.1 坯料和制坯质量影响因素..............................................3
4.2结构因素.......................................................................3
4.3材质因素..................................................................3
4.7热处理胀缩因素................................................................4
4.8 形位偏差.................................................................5
5机械加工余量与公差计算方法表的选用................................................5
附 录 A （规范性附录）机械加工余量与公差计算方法表的使用 ................. 11