Standard No.:	QC/T 268-1999
Chinese Name:	汽车冷冲压加工零件未注公差尺寸的极限偏差
English Name:
Professional Classification:	QC Professional Standard - Automobile
Issued by:
Issued on:	1999-01-01
Implemented on:	1999-01-01
Status:	VALID
Replace:	ZBT04006.3-1989
Language:	English
File Format:	PDF
Word Count:	5000 words
Price(USD):	150 (USD)
Delivery:	via email in 1-3 business day

1 Subject content and applicable scope

This standard specifies the permissible limit deviation in dimensions without tolerance indication for the features of size formed after cold stamping processing in the automobile part drawing.

This standard is applicable to the permissible limit deviation in dimensions without tolerance indication after cold stamping processing in the automobile part drawing.

2 Terms

Blanking dimension: the measured dimension of the bright belt of the blanked parts.

3 Permissible limit deviation in dimensions without tolerance indication for flat stamping processing

3.1 The permissible limit deviation in dimensions without tolerance indication of the blanking length L and diameters D and d for flat stamping shall be in accordance with those specified in Figure 1 and Table 1.