DYNAMIC TEAR TESTING OF FRONIUS-TIME AND LAGMAW WELDS

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Authors
  1. MacKay, K.
Corporate Authors
Defence Research Establishment Atlantic, Dartmouth NS (CAN);MARTEC Ltd, Halifax NS (CAN)
Abstract
Dynamic tear speciments of welds from two previous DREA investigations were tested. The 25 mm thick specimens included two gas metal arc welds (Fronius-TIME) each made in HY80 and HY100 steels. A weld produced by laser assisted gas metal arc welding (LAGMAW) in HY80 steel was also tested with specimens notched in the weld metal and in the heat affected zone HAZ). The HY80 Fronius-TIME 3G weld outperformed the HY80 Fronius-TIME 1G/4G weld in the dynamic tear tests with the LAGMAW weld giving the poorest performance of the HY80 welds tested. For the HY100 the Froniuss-TIME 1G/4G weld gave higher dynamic tear energies than the Fronius-TIME 3G weld. The LAGMAW HAZ specimens gave some of the highest dynamic tear energies for each test temperature which is possibly due to the fracture path including a combination of HAZ, weld metal, and parent metal. All welds tested met the requirement of 690 J at -29C except for the LAGMAW weld which gave a dynamic tear energy of 512 J at -5C.
Keywords
Fronius-TIME welds;LAGMAW welds
Report Number
DREA-CR-95-405 — Contractor Report (Final)
Date of publication
01 Oct 1994
Number of Pages
50
DSTKIM No
95-02547
CANDIS No
151398
Format(s):
Document Image stored on Optical Disk;Hardcopy

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