JB/T 9179.8-1999
Machining allowances and tolerances of open forgings on hydraulic press.Ring (English Version)

Standard No.

JB/T 9179.8-1999

Language

Chinese, Available in English version

Release Date

1999

Published By

Professional Standard - Machinery

Status

Be replaced 2014-07

Replace By

JB/T 9179.8-2013

Latest

JB/T 9179.8-2013

Scope

This standard specifies the allowances and tolerances for free-forged ring forgings on hydraulic presses. This standard is applicable to ring-type forgings after the final core rod reaming process is completed, and the part size complies with d≥0.5D and H0≤1.2D.

JB/T 9179.8-1999 history

• 2013 JB/T 9179.8-2013 Machining allowances and tolerances of open die forgings on hydraulic press.Part 8: Ring, cylinder segment and flange
• 1999 JB/T 9179.8-1999 Machining allowances and tolerances of open forgings on hydraulic press.Ring