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NAS931

2nd Edition, June 29, 2012

Complete Document

SPECIFICATION FOR DUAL TURNING MACHINES

Includes all amendments and changes through Inactive for New Design Notice 4, June 29, 2012


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INACTIVE FOR NEW DESIGN * X-REF NAS380
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Product Details:

  • Revision: 2nd Edition, June 29, 2012
  • Published Date: June 29, 2012
  • Status: Not Active, See comments below
  • Document Language: English
  • Published By: Aerospace Industries Association (AIA/NAS)
  • Page Count: 8
  • ANSI Approved: No
  • DoD Adopted: No

Description / Abstract:

The machines covered by this requirement are intended for use in the aircraft manufacturing industry, and provide the preferred relation of spindle horse power, speeds and feeds for the simultaneous turning of each side of Jet engine compressor and turbine rotor discs, or other parts of a similar configuration, where oil canning is a hazard in the turning operation in relation to finished part requirements.

These discs are mostly forgings of aluminum, of stainless steel, titanium and other hi-heat alloys now commonly used in aircraft manufacture.