Transactions of Materials and Heat Treatment

Title：Study of heat setting process for titanium alloy thin-walled cylindrical

Authors： Liu Xinghong Li Ming Tu Quan

Unit： Li Yang Guizhou Air Power Co. Ltd.

KeyWords： titanium alloy heat setting mechanics of materials process analysis mould design

ClassificationCode：

year,vol(issue):pagenumber：2015,40(1):39-42

Abstract：

As a kind of special industrial materials, titanium alloy has been widely used in aircraft engine. But its difficult to guarantee its roundness and diameter with traditional technology such as roll round welding processing, due to its special material properties of titanium alloy parts thin-walled cylindrical at room temperature. For the expansion coefficient and elastic modulus，heated deformation degree and change of inner stress of different materials are different, so the heat setting process was adopted to adjust the parts in virtue of the difference. Based on the properties of titanium alloy material，the appropriate heat setting temperature and mold materials were chosen, the heating process was analyzed and calculated in detail according to mechanics of materials, and the needed initial data of parts and mold design were obtained, and finally the reasonable heat setting process was got. Through manufacture process of a number of different size parts，the tolerance of titanium alloy parts can be controlled within ±0.1 mm，which verifies the feasibility of the heat setting process.

Funds：

刘兴红(1976-)，男，工程硕士，高级工程师

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