FEASIBILITY STUDY OF SPIN FRICTION WELDED JOINT FOR THE NYLON FIBERGLASS SHELL OF THE WTU-5001/B PRACTICE WARHEAD

Authors
  1. Colle, A.
  2. Berube, G.
Corporate Authors
Defence Research Establishment Valcartier, Valcartier QUE (CAN)
Abstract
Production, assembly and quality control difficulties occurred during the manufacturing of the nylon glass fiber threaded components of the WTU-5001/B practice warhead. The memorandum presents the two alternative methods that were tried at DREV to replace the threads: ultrasonic welding and spin friction welding. The latter technique was studied using two different processes: standard spin friction welding and shear spin friction welding. It was found that ultrasonic welding could not produce a weld between nylon glass fiber components (Nylafil G-13/40) whereas the standard spin friction welding did produce a weld. However this weld was weak and could be easily broken by striking the component on its side. The shear spin friction welding technique gave the best results and it was demonstrated that the welded joint produced superior mechanical properties compared to the threaded joint. TRUNCATED
Report Number
DREV-M-2901/88 — Memorandum
Date of publication
15 Feb 1988
Number of Pages
34
DSTKIM No
88-01640
CANDIS No
54871
Format(s):
Microfiche filmed at DSIS;Originator's fiche received by DSIS;Hardcopy

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