Automatic Welding, 2019, №06



2019 №06 (05)

DOI of Article 10.15407/as2019.06.06

2019 №06 (07)

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Avtomaticheskaya Svarka (Automatic Welding), #6, 2019, pp.39-43

Filler flux-cored wire for TIG welding and surfacing of titanium alloy VT22

S.V. Akhonin, S.L. Shvab

E.O. Paton Electric Welding Institute of the NAS of Ukraine. 11 Kazimir Malevich Str., 03150, Kyiv, Ukraine. E-mail: office@paton.kiev.ua

The paper considers an approach for selection of filler material in TIG welding of titanium alloy VT22. It is shown that weld metal obtained using pilot flux-cored wire PPT-22 is a representative of transient class of titanium alloys, to which VT22 alloy is referred to (coefficient of β-stabilizing of such metal equals 1). This wire can be used for argon-arc welding of high-strength titanium alloys VT22. Mechanical properties of such welded joints after heat treatment reach the level of base metal indices. Application of PPT-22 wire in restoration argon-arc surfacing of VT22 alloy parts provides their high service characteristics. 15 Ref., 4 Tabl., 5 Fig.
Keywords: titanium alloy VT22, flux-cored wire, TIG welding, restoration surfacing

Received: 18.04.2019
Published: 20.05.2019

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