[PDF] Development Of Procedures For Welding 2 Inch Thick Titanium Alloy Plate eBook

Author : R. L. KOPPENHOFER
Publisher :
Page : 21 pages
File Size : 30,67 MB
Release : 1961
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Procedures for welding 2-inch-thick Ti-alloy plate were developed for 4 alloys: commercially pure titanium, Ti-6Al-4V, Ti-5Al-2.5Sn, and Ti-13V-11Cr-3Al. Commercially available filler wires and experimental filler materials were used make the welds. The properties of the welds were generally as good as or better than those of the base plate. The results show that heavy titanium-alloy plates can be satisfactorily welded provided they are adequately protected from weld contamination and the compositions of the filler wire and base plate are properly controlled. A controlled-atmosphere welding chamber was used to provide protection for the welds in this program. The impact properties of the base plate did not meet the requirements for submarine hulls, but two of the alloys show promise: Ti-6Al-4V and the Ti-5Al-2.5Sn alloys. (Author).

Author : R. E. Monroe
Publisher :
Page : 26 pages
File Size : 19,28 MB
Release : 1965
Category : Titanium
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This memorandum represents a combined effort by the U.S. Naval Applied Science Laboratory, Brooklyn, New York, and the Defense Metals Information Center to summarize new information on welding thick Ti plate. Thick plate of Ti continues to be of interest to the aerospace and defense industries for possible use in submersibles, armored vehicles, large space boosters, high-speed aircraft, and for pressure vessels. This memorandum generally is limited to information on welding Ti plate that is (1) at least 1 in. thick and (2) that is not covered by DMIC Report 185, The Status and Properties of Titanium Alloys for Thick Plate, June 14, 1963. The general requirements for welding Ti are not repeated here, since they are well documented in references mentioned in the inroduction to the memorandum. Sections have been prepared to cover material developments, welding-process developments, weld properties, and residual welding stresses. (Author).

Author : NAVAL APPLIED SCIENCE LAB BROOKLYN N Y.
Publisher :
Page : 10 pages
File Size : 29,68 MB
Release : 1963
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The results of this investigation indicates that mechanized out-of-chamber welding of thick plate titanium alloy in the flat position can be accomplished without undue difficulty, provided that care is exercised in the preparation of the plates for welding and in the control of the welding operation and that a trailing shield of suitable design is used in the operation. Additional work in out-of-chamber mechanized welding of thick plate titanium is required to establish appropriate welding conditions for specific alloys intended for use in submarine hull construction and to assess the properties of weldments produced with these alloys.

Author : Robert Edward Monroe
Publisher :
Page : 86 pages
File Size : 39,60 MB
Release : 1967
Category : Adhesives
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This report supplies information on joining processes applicable to titanium and its alloys in sheet metal applications, primarily related directly to airframe construction. Although the material presented here does not cover all titanium joining processes, and omits such processes as plasma-arc, submerged-arc, electroslag, flash, and high-frequency resistance welding, the data presented cover materials up to 2-inches thick in some cases and the report should be useful to anyone seeking titanium joining information. The joining processes covered fall into five categories: welding, brazing, metallurgical bonding (diffusion and deformation bonding), adhesive bonding, and mechanical fastening. The fusion welding processes that are discussed in detail include gas tungsten arc, gas metal arc, arc spot, and electron beam. The resistance processes give extended coverage are spot, roll spot, and seam welding. (Author).

Author : Robert Melvin Evans
Publisher :
Page : 18 pages
File Size : 50,1 MB
Release : 1965
Category : Steel
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The report summarizes the advancements made in the development and welding of steels possessing yield strengths greater than 150,000 psi. Steels discussed include the medium carbon, low-alloy martensitic steels; low carbon alloy martensites; and nickel maraging steels. Almost all programs which have the objective of developing high-strength steels have an equally important phase concerned with filler metal development. Filler metals are also discussed. The new welding processes discussed are Narrow-Gap welding, electron-beam welding, plasma-arc welding, high-frequency resistance welding, electroslag welding, laser welding, and interrupted-arc (dip trasfer) MIG welding. (Author).