SQUARE-BUTT NARROW GROOVE SHORT ARC WELDING.

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Abstract:

Because of the possibility of reducing welding costs without sacrificing the reliability of welded joints, the Air Force has been evaluating various high speed or high deposition rate inert gas welding processes. A brief investigation was conducted to determine the utility of gas metal arc Mig welding by means of large diameter filler metal and short-circuiting transfer for joining spaced square butt heavy 18 per cent nickel maraging steel plate. In a preliminary study, welding procedures were optimized for producing sound crack-free welds in mild steel plate. Use of these procedures for joining 18 percent nickel steel plate resulted in unacceptable lack-of-fusion or microcracking defects. Although refinements of welding techniques improved the integrity of weld metal, the program was terminated because of the improbability that the process could be upgraded to meet the requirements of the aerospace industry. Author

Author(s):
Enis, Allan
Author Organization(s):
UNION CARBIDE CORP NEWARK NJ LINDE DIV
Descriptive Note:
Final rept. 1 Jun 65-24 Aug 66,
Pagination:
0040

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release

RECORD

Collection: TR
Identifying Numbers
Report Number(s):
L-1154, AFML-TR-67-16
Contract/Grant Number(s):
AF 33(615)-3059
Project Number(s):
MMP-8-265
Monitor Series:
TR-67-16
 Subject Terms
Communities of Interest:
Materials and Manufacturing Processes
Descriptor(s):
(*INERT GAS WELDING, VELOCITY), OPTIMIZATION, METAL PLATES, STEEL, MARAGING STEELS, MICROSTRUCTURE, NICKEL, COBALT, IRON, TITANIUM, COPPER, PHOSPHORUS, ALUMINUM, MOLYBDENUM, CRACKS
Field(s)/Group(s):
Fabrication Metallurgy
Keyword(s):
STEEL 18NI
Report Date:
1966 Dec 27