QC/T 268-1999 in English

SUPERSEDED

Extreme deviation for undeclared tolerance size of processing parts for automobile cold stamping

Issued on:1999-01-01
Implemented on:1999-01-01
File Format:PDF
Delivery:Via email within 1~3 business days

Price(USD)： $120.00
$117.00

Standard No:	QC/T 268-1999
Document status:	SUPERSEDED
Superseded by:	QC/T 268-2023 Permissible automobile cold stamping variations in dimensions without tolerance indication
Superseded on:	2023-11-01
Title in English:	Extreme deviation for undeclared tolerance size of processing parts for automobile cold stamping
Title in Chinese:	汽车冷冲压加工零件未注公差尺寸的极限偏差
Language:	English
File Format:	Electronic (PDF)
Delivery:	Via email within 1~3 business days
Issued on:	1999-01-01
Implemented on:	1999-01-01
Professional Classification:	QC-Automobile
Related Keywords:	undeclared tolerance size permissible limit deviation tolerance indication extreme deviation processing parts
Related Topics:	inter-assay relative range qc/t344-1999 qc/t577-1999 qc/t572-1999 qc/t412-1999 range divided by relative range qc/t371-1999 range and critical range Very poor inter-assay difference Use the range to calculate the difference between batches qc/t 583-1999 Very poor and Relatively poor inter-assay relative range Tolerance Deviation Table Forgings without tolerance qc/t 448-1999 qc/t448-1999 Zero crossing deviation work deviation qc/t594-1999 Complex + range method zero aberration critical range and range Extreme English Zero concentration standard deviation Zero concentration relative deviation zero markup Lamination Tolerance Extremely poor during the day Range coefficient Deviation software qc/t 504-1999 range coefficient No tolerance Tolerance qc/t 501-1999 standard deviation error Range method coefficient qc /t 600 - 1999 Inter-batch difference qc/t504-1999 Zero signal relative deviation qc/t575-1999 deviation standard zero spread Aluminum Machining Tolerances iso stamping tolerance range and difference qc/t276-1999 qc t 309 1999 qc/t470-1999 qc/t480-1999 qc/t583-1999 qc t 607 1999 qc t614-1999 range + coefficient qc/t407-1999 Not noted Machining without tolerance qc/T 268 Zero adjustment y145m2009 dimensions without tolerance table ISO22081 does not note tolerance Dimensions of automotive plastic parts National standards for injection molded parts tolerances do not include tolerances Forgings without dimensional tolerances Machining without tolerances Auto parts engineering Hydraulic parts become magnetic after processing qc/t523-1999 QC/T268 qc/t268 2023 qc/t534 1999 qc268 qc/t262-1999 Forging without tolerance qc t268 qc /t 407 - 1999 qc/t534-1999 qc/t546-1999 qc t 268-1999 qc/t 268-1999 qct 268-1999 qc/t333-1999 qc/t 572-1999 qc/t385-1999

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.

1 Subject content and applicable scope
2 Terms
3 Permissible limit deviation in dimensions without tolerance indication for flat stamping processing
4 Dimensional tolerance of formed bent parts
5 Permissible limit deviation in dimensions without tolerance indication for formed drawing
6 Permissible limit deviation in dimensions without tolerance indication of hole edge distance, hole center distance and hole interval of stamped parts
Additional explanation:

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