Welding process development of high strength alloys. Final report 1 Dec 1970--1 Apr 1972. [HY 130, D6AC, and 9Ni--4Co--03C steels and titanium alloy 6Al--6V--2Sn]
The objective of this program was to establish the use of several advanced welding processes for joining a select group of high-strength alloys in thicknesses of 0.1 to 1.0 inch. Processes investigated were Electron Beam, Plasma, Pulsed GTA, and Hot Wire GTA. Steel alloys HY 130, D6AC, and 9Ni--4Co--0.3C were utilized for all processes. In addition, titanium alloy 6Al--6V--2Sn was included as part of the electron beam investigation. Each of the processes demonstrated the capability for achieving aerospace quality weldments in all materials. The processes were ranked according to their relative impact on production costs associated with total welding time, quality of weld, joint preparation, and distortion. Included in the report are descriptions of each process and the equipment utilized as well as detailed discussion of the development efforts. Evaluation of the weldments was performed non-destructively and destructively. NDT procedures included radiographic, ultrasonic, and magnetic particle methods. Mechanical testing included transverse and longitudinal tensiles and also determination of fracture toughness. A complete review of mechanical testing methods and test results are included, with emphasis on fracture toughness. (auth)
- Research Organization:
- Bell Aerospace Co., Buffalo, NY (USA)
- DOE Contract Number:
- F33615-71-C-1131
- OSTI ID:
- 7119147
- Report Number(s):
- AD-901997
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
CHROMIUM ALLOYS
ELECTRON BEAM WELDING
GAS TUNGSTEN-ARC WELDING
PLASMA ARC WELDING
MOLYBDENUM ALLOYS
STEELS
COBALT ALLOYS
NICKEL ALLOYS
ALUMINIUM ALLOYS
TIN ALLOYS
TITANIUM BASE ALLOYS
VANADIUM ALLOYS
COST
FRACTURE PROPERTIES
INDUSTRIAL RADIOGRAPHY
MAGNETIC TESTING
MECHANICAL TESTS
ULTRASONIC TESTING
CARBON ADDITIONS
NICKEL ADDITIONS
VANADIUM ADDITIONS
ACOUSTIC TESTING
ALLOYS
ARC WELDING
FABRICATION
IRON ALLOYS
IRON BASE ALLOYS
JOINING
MATERIALS TESTING
MECHANICAL PROPERTIES
NONDESTRUCTIVE TESTING
TESTING
TITANIUM ALLOYS
WELDING
360101* - Metals & Alloys- Preparation & Fabrication