Accession Number : AD0859509

Title :   Electron Beam Welding of Thick Sections.

Descriptive Note : Final rept. 15 Jun 67-15 Jul 69,

Corporate Author : SOLAR TURBINES INTERNATIONAL SAN DIEGO CA

Personal Author(s) : McGregor, Wells P. ; Metcalfe, Arthur G. ; Warren, John R.

Report Date : AUG 1969

Pagination or Media Count : 146

Abstract : A brief summarization of the program encompasses: The welding and evaluation of EB welding candidate materials in the 0.5-inch and 2.0-inch thicknesses. Satisfactory welds were accomplished and evaluated in each of the materials. Satisfactory use of the induction method, using water-cooled coils, for materials of large masses requiring preheating and/or postheating. The determination that the surface finish of the abutting edges plays a very small part on the finished weld. Whether a finish of 63 or 1000 rms, or any figure in between, was used the effect on the welds was unnoticeable. The observation that the shape and focal point of the electron beam are not critical from the standpoint of producing high integrity welds on thick section weldments. The conformation that when welding large aircraft landing gear components, large chambers with precise tooling are required, in addition to satisfactory preheating and postheating methods. (Author)

Descriptors :   (*LANDING GEAR, ELECTRON BEAM WELDING), THICKNESS, LANDING GEAR, DEFECTS(MATERIALS), MICROSTRUCTURE, TITANIUM ALLOYS, STEEL, ALUMINUM ALLOYS, TENSILE PROPERTIES, HARDNESS, MECHANICAL PROPERTIES, COST EFFECTIVENESS.

Subject Categories : Aircraft
      Fabrication Metallurgy

Distribution Statement : APPROVED FOR PUBLIC RELEASE