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1、冲 压 件 公 差 及 选 用一 平冲压件尺寸公差GB/T 13914-1992基本尺寸材料厚度公 差 等 级ST1ST2ST3ST4ST5ST6ST7ST8ST9ST10ST11010.50.0080.0100.0150.0200.030.040.060.080.120.160.510.0100.0150.020.030.040.060.080.120.160.2411.50.0150.020.030.040.060.080.120.160.240.34130.50.0120.0180.0260.0360.050.070.100.140.200.280.400.510.0180.0260.0
2、360.050.070.100.140.200.280.400.56130.0260.0360.050.070.100.140.200.280.400.560.78340.0340.050.070.090.130.180.260.360.500.700.983100.50.0180.0260.0360.050.070.100.140.200.280.400.560.510.0260.0360.050.070.100.140.200.280.400.560.78130.0360.050.070.100.140.200.280.400.560.781.10360.0460.060.090.130.
3、180.260.360.480.680.981.4060.060.080.110.160.220.300.420.600.841.201.6010250.50.0260.0360.050.070.100.140.200.280.400.560.780.510.0360.050.070.100.140.200.280.400.560.781.10130.050.070.100.140.200.280.400.560.781.101.50360.060.090.130.180.260.360.500.701.001.402.0060.080.120.160.220.320.440.600.881.
4、201.602.4025630.50.0360.050.070.100.140.200.280.400.560.781.100.510.050.070.100.140.200.280.400.560.781.101.50130.070.100.140.200.280.400.560.781.101.502.10360.090.120.180.260.360.500.700.981.402.002.8060.110.160.220.300.440.600.861.201.602.203.00631600.50.040.060.090.120.180.260.360.500.700.981.400
5、.510.060.090.120.180.260.360.500.700.981.402.00130.090.120.180.260.360.500.700.981.402.002.80360.120.160.240.320.460.640.901.301.802.603.6060.140.200.280.400.560.781.101.502.102.904.201604000.50.060.090.120.180.260.360.500.700.981.402.000.510.090.120.180.260.360.500.701.001.402.002.80130.120.180.260
6、.360.500.701.001.402.002.804.00360.160.240.320.460.640.901.301.802.603.604.8060.200.280.400.560.781.101.502.102.904.205.8040010000.50.090.120.180.240.340.480.660.941.301.802.600.510.180.240.340.480.660.941.301.802.603.60130.240.340.480.660.941.301.802.603.605.00360.320.450.620.881.201.602.403.404.60
7、6.6060.340.480.701.001.402.002.804.005.607.80100063000.50.260.360.500.700.981.402.002.804.000.510.360.500.700.981.402.002.804.005.60130.500.700.981.402.002.804.005.607.80360.901.201.602.203.204.406.208.0061.001.401.902.603.605.207.2010.00二 成型冲压件尺寸公差GB/T 13914-1992基本尺寸材料厚度公 差 等 级FT1FT2FT3FT4FT5FT6FT7
8、FT8FT9FT10010.50.0100.0160.0260.040.060.100.160.260.400.600.510.0140.0220.0340.050.090.140.220.341.051.0911.50.020.030.050.080.120.200.320.501.091.14130.50.0160.0260.040.070.110.180.280.440.701.000.510.0220.0360.060.090.140.240.380.600.901.40130.0320.050.080.120.200.340.540.861.202.00340.040.070.110
9、.180.280.440.701.101.802.803100.50.0220.0360.060.090.140.240.380.600.961.400.510.0320.050.080.120.200.340.540.861.402.20130.050.070.110.180.300.480.761.202.003.20360.060.090.140.240.380.601.001.602.604.0060.070.110.180.280.440.701.101.802.804.4010250.50.030.050.080.120.200.320.500.801.202.000.510.04
10、0.070.110.180.280.460.721.101.802.80130.060.100.160.260.400.641.001.602.604.00360.080.120.200.320.500.801.202.003.205.0060.100.140.240.400.621.001.602.604.006.4025630.50.040.060.100.160.260.400.641.001.602.600.510.060.090.140.220.360.580.901.402.203.60130.080.120.200.320.500.801.202.003.205.00360.10
11、0.160.260.400.661.001.602.604.006.4060.110.180.280.460.76 1.202.003.205.008.00631600.50.050.080.140.220.360.560.901.402.203.600.510.070.120.190.300.480.781.202.003.205.00130.100.160.260.420.681.101.802.804.407.00360.140.220.340.540.881.402.203.405.609.0060.150.240.380.621.001.602.604.006.6010.001604
12、000.50.100.160.260.420.701.101.802.804.400.510.140.240.380.621.001.602.604.006.40130.220.340.540.881.402.203.405.609.00360.280.440.701.101.802.804.407.0011.0060.340.540.881.402.203.405.609.0014.0040010000.50.240.380.621.001.602.604.006.600.510.340.540.881.402.203.405.609.00130.440.701.101.802.804.40
13、7.0011.00360.560.901.402.203.405.609.0014.0060.621.001.602.604.006.4010.0016.00注：1. 平冲压件是经平面冲裁工序加工而成型的冲压件。2. 成型冲压件是经弯曲、拉深及其他成型方法加工而成的冲压件。3. 平冲压件尺寸公差适用于平冲压件，也适用于成型冲压件上经冲裁工序加工而成的尺寸。 4平冲压件、成型冲压件尺寸的极限偏差按下述规定选取： 孔内形尺寸的极限偏差取表中给出的公差数值，冠以“”作为上偏差，下偏差为0。 轴外形尺寸的极限偏差取表中给出的公差数值，冠以“”作为下偏差，上偏差为0。 孔中心距、孔边距、弯曲、拉深及其他
14、成型方法加工而成的长度、高度及未注公差尺寸的极限偏差，取表中给出的公差数值的一半，冠以“”作为上下偏差。三 尺寸公差等级的选用GB/T 13914-1992 平 冲 压 件加 工方 法尺 寸类 型公 差 等 级ST1ST2ST3ST4ST5ST6ST7ST8ST9ST10ST11精密冲裁外 形内 形孔中心距孔边距普通冲裁外 形内 形孔中心距孔边距成型冲压平面冲裁外 形内 形孔中心距孔边距成 型 冲 压 件拉深直 径高 度带凸缘拉 深直 径高 度弯 曲长 度其他成型方法直 径高 度长 度四 角度公差GB/T 13915-1992 冲 压 件 冲 裁 角 度公 差等 级短 边 尺 寸 /mm101
15、0252563631601604004001m1m2.5mAT14030201264AT214030201264AT31201403020126AT42120140302012AT5321201403020AT643212014030 冲 压 件 弯 曲 角 度公 差等 级短 边 尺 寸 /mm101025256363160160BT1140301612BT21301402016BT32302130130BT44321301BT56432302注：1. 冲压件冲裁角度：在平冲压件或成型冲压件的平面部分，经冲裁工序加工而成的角度。2. 冲压件弯曲角度：经弯曲工序加工而成的冲压件的角度。 3. 冲压件冲裁角度冲压件弯曲角度的极限偏差按下述规定选取：依据使用的需要选用单向偏差。未注公差的角度的极限偏差，取表中给出的公差数值的一半，冠以“”作为上下偏差。五 角度公差等级的选用冲压件冲 裁 角 度材料厚度 /mm公 差 等 级AT1AT2AT3AT4AT5AT633冲压件弯 曲 角 度材料厚度 /mm公 差 等 级BT1BT2BT3BT4BT533说明：本公差系根据现有资料整理的，且国标随时都可能修订，故仅供设计时参考。 2008年 整 理
