JB/T 4381-2011
Permissible limit deviation in dimensions without tolerance indication for shearing of metal plate (English Version)

Standard No.

JB/T 4381-2011

Language

Chinese, Available in English version

Release Date

2011

Published By

Professional Standard - Machinery

Latest

JB/T 4381-2011

Replace

JB/T 4381-1999

Scope

This standard specifies the accuracy level of the limit deviation of the untoleranced dimensions of stamping shear blanking and the marking method of shear blanking tolerance. This standard is applicable to gantry-type and open-type shearing machines, which can cut metal plates or blanks for stamping with a shearing thickness of less than 12 mm, a shearing width of ≥90 mm, and a shearing length-to-width ratio of ≤5.

JB/T 4381-2011 history

• 2011 JB/T 4381-2011 Permissible limit deviation in dimensions without tolerance indication for shearing of metal plate
• 1999 JB/T 4381-1999 Permissible limit deviation in dimensions without tolerance indication for shearing of metal plates