METHOD OF MAKING THIN SHEETS FROM DIFFICULT-TO-FORM TITANIUM ALLOYS Russian patent published in 2013 - IPC B21B1/38 C22F1/18 

FIELD: process engineering.

SUBSTANCE: invention relates to metallurgy, particularly, to plastic deformation of metals, namely, to production of thin sheets from (α-β)-, pseudo-β, β-titanium alloys. Proposed method comprises preparing stack consisting of the main and clad layers for rolling, assembling said stack, welding, degassing, hot rolling of clad sheet, subsequent rolling and thermal treatment, and surface finishing. Said stack is assembled of the main layer composed of large-size blank from difficult-to-deform titanium alloy and two clad layers from unalloyed titanium used as temporary layers. Clad sheet is rolled in several passes at temperature above and below that of polymorphic transformation T_pt. Note here that after rolling said clad layers are removed in surface finishing.

EFFECT: production of thin high-surface-finish sheets from ((α-β)-)-, pseudo-β, β-titanium alloys.

2 dwg, 4 tbl, 1 ex