Automatic Step Threading of Breechblocks

Abstract

This report details the engineering design, development and application of equipment to produce step threads (constant lead thread on two or more diameters) on the breechblock of cannon. The equipment uses a blade type tool with the part being threaded through shaper type cuts until finish size is reached. The use of this equipment will reduce the floor to floor time from 7.5 hours to 2.0 hours while producing better thread finishes and more accurate dimensional sizes.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Jun 01, 1977
Accession Number
ADA041688

Entities

People

  • C. Rose

Organizations

  • United States Army Armament Research, Development and Engineering Center

Tags

Communities of Interest

  • Weapons Technologies

DTIC Thesaurus Topics

  • Automatic
  • Brushless Dc Motors
  • Classification
  • Control Panels
  • Diameters
  • Engineering
  • Machine Tools
  • Machines
  • Machining
  • Motors
  • Oscillation
  • Oscillators
  • Procurement
  • Push Buttons
  • Security
  • Switches
  • Tools

Readers

  • Manufacturing Engineering.
  • ballistics.