Manufacturing Technology for Titanium Tubes from Billets Prepared by Electron-Beam Remelting
Technology is developed for manufacturing hot-pressed and cold-worked seamless tubes from titanium alloy billets prepared by electron-beam remelting, which makes it possible to reduce metal consumption and energy expended by lowering the number of production operations (excluding forging, machining, piercing, or expanding with preliminary drilling and heating before the above-mentioned operations). Billet mechanical properties and structure studied for hot-pressed and cold-worked pipe specimens show that the production parameters developed make it possible to obtain hot-pressed and cold-worked seamless tubes corresponding to specifications of domestic and overseas standard documents.
Keywordstechnology titanium alloys billet hot extrusion cold working mechanical properties
- 1.A. G. Lyalkov, I. I. Lube, M. I. Medvedev, et al., “Calculation of limiting factors for tube hot extrusion,” in: Contemporary Problems of Metallurgy, Scientific Information, Vol. 8, Metal Plastic Deformation [in Ukrainian], Sist. Tekhnol., Dnipropetrovsk (2005), pp. 388–393.Google Scholar
- 2.N. P. Trigub, G. Zh. Zhuk, A. A. Chepinskii, et al., “Study of manufacture of hot-rolled and cold-worked tubes for cast undeformed tube billet of titanium allot VT1-0 prepared by electron-beam melting,” Sovrem. Elektromet., No. 2, 25–28 (2006).Google Scholar
- 3.O. E. Sobko-Nesteruk, N. G. Tretyak, N. V. Chaika, et al., “Use of hollow alloy VT1-0 ingots prepared by EMR for manufacturing hot-pressed tubes,” Titan (Int. Assoc. Titan), No. 3, 27–31 (2011).Google Scholar
- 4.Yu. F. Shevakin, L. M. Grabarnik, and A. A. Nagaitsev, Extrusion of Heavy Nonferrous Metals and Alloys [in Russian], Metallurgiya, Moscow (1987).Google Scholar