Design and Construction of a Refined Step Threading Machine for 175mm and 8 In. Breech Rings.

Abstract

This report details the engineering design and production application of a special purpose machine, tooled to produce internal step threads (constant lead thread on two distinct diameters) on 8 in M201 breech rings. The machine, using oscillating motion and a full thread form tool, produces the full thread on each sector, then is indexed in turn to the next sectors until all eight are completed. The use of this equipment has reduced the floor to floor time from 13 hours to 4 hours while producing better thread finishes and more accurate dimensional sizes.

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Document Details

Document Type
Technical Report
Publication Date
Jun 01, 1980
Accession Number
ADA088535

Entities

People

  • C. H. Rose

Organizations

  • United States Army Armament Research, Development and Engineering Center

Tags

Communities of Interest

  • Weapons Technologies

DTIC Thesaurus Topics

  • Circuit Boards
  • Construction
  • Control Knobs
  • Control Panels
  • Coolant Pumps
  • Cutting Tools
  • Diameters
  • Engineering
  • Machine Tools
  • Machines
  • Machining
  • Micrometers
  • Motors
  • Oscillation
  • Production
  • Taps
  • Tools

Readers

  • Fluid Mechanics and Fluid Dynamics.
  • Manufacturing Engineering.
  • Systems Analysis and Design