gbt13914-2002 冲压件尺寸公差

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1、ICs77-140.80噶日中华人民共和国国家标准Gs/T13914-2002冲压件尺寸公差Toleranceofdimensionsforstampings2002一09门1发布2003一04一01实施中华人民共和国发布国家质量监督检验检疫总局www.bzfxw.comGB/T13914-2002目次前言····。，······················，··········，············，·····························‘·······················，·

2、·····。⋯1范围·...................············...................................................................................2术语·············，············································“················································⋯⋯3公差等级、符号、代号及数值···········

3、············。·····，····⋯⋯，.·.....·...⋯⋯‘.·⋯。·........⋯⋯‘⋯4冲压件尺寸极限偏差·...............................................................................................5公差等级选用········，··································。················································

4、······⋯⋯附录A(标准的附录)公差等级选用www.bzfxw.comGB/T13914-2002前言本标准是对GB/T13914-1992《冲压件尺寸公差》的修订。修订时，参照GB/T15055-1994《冲压件未注公差尺寸的极限偏差》,DIN6930(钢冲压件一般公差》和DIN6953((钢板制品的冷弯》的部分内容，对部分公差作了调整。并作了编辑性修改。本标准自实施之日起，同时代替GB/T13914-1992,本标准的附录A是标准的附录。本标准由中国机械工业联合会提出。本标准由全国锻压标准化技术委员会归口。本标

5、准负责起草单位:中国一拖集团有限公司冲压厂。本标准主要起草人:王彤勇、王文惠、王春霞。www.bzfxw.com中华人民共和国国家标准GB/T13914一2002冲压件尺寸公差代替GB/T13914-1992Toleranceofdimensionsforstampings1范围本标准规定了金属冲压件的尺寸公差等级、符号、代号、公差数值及极限偏差。本标准适用于金属板材平冲压件和成形冲压件。2术语2.1平冲压件(flatstamping)经平面冲裁工序加工而成形的冲压件。2.2成形冲压件(shapingstamping)

6、经弯曲、拉深及其他成形方法加工而成的冲压件3公差等级、符号、代号及数值3.1平冲压件尺寸公差分11个等级。即:ST1至ST11.ST表示平冲压件尺寸公差，公差等级代号用阿拉伯数字表示。从ST1至ST11等级依次降低。平冲压件尺寸公差适用于平冲压件，也适用于成形冲压件上经过冲裁工序加工而成的尺寸。平冲压件尺寸公差数值按表1规定。表1平冲压件尺寸公差mm中华人民共和国国家质皿监督检验检疫总局2002-09-11批准2003一04一01实施Iwww.bzfxw.comGs/T13914-2002表1(续)nlnl基本尺寸板材

7、厚度公差等级大于至灭士至ST1ST2ST3ST4ST5ST6ST7ST8ST9ST10ST11O50.0180.0260.0360.0500.0700.1000.1400.2000.2800.4000.5600.510.0260.0360.0500.0700.1000.1400.2000.2800.4000.5600.78031O130.0360.0500.0700.1000.1400.2000.2800.4000.5600.7801.100360.0460.0600.0900.1300.1800.2600.3600.

8、4800.6800.9801.40060.060n_0只n0.1100.1600.2200.3000.4200.6000.8401.2001.600{--一0.50.0260.0360.0500.0700.1000.1400.2000.2800.4000.5600.7800.510.0360.0500.0700.1000.1400