L-shaped titanium alloy ribbed plate processing technology capable of eliminating stress deformation

Abstract

The invention relates to an L-shaped titanium alloy ribbed plate processing technology capable of eliminating stress deformation. The technology comprises the following steps: 1, preparing a plurality of titanium plates; 2, putting the titanium plates in the chamber of a vacuum furnace according to a spacing between adjacent titanium plates of 20mm, carrying out vacuum heating on the titanium plates in the vacuum furnace to 650-700DEG C, carrying out heat insulation for 6h, stopping heating, and cooling to below 300DEG C; 3, blanking by using a laser cutting machine; 4, putting the obtained cut titanium plate material in low-viscosity oil environment, and heating to 500-600DEG C; 5, directly adding the titanium plate material in a die, and molding; 6, allowing the molded plates to stand in low-viscosity oil environment with the temperature of 500-600DEG C for 10-15min for stability guaranteeing; and 7, cooling. The heat treatment before and after the molding of the L-shaped titanium alloy ribbed plates in the technology greatly eliminates the stress of the material during and after titanium alloy molding, and the technology has the advantages of small molding pressure, long life of the die, and one-time precision molding.

Description

technical field [0001] The invention relates to a processing technology of a titanium alloy plate, in particular to a processing technology of an L-shaped titanium alloy ribbed plate which can eliminate stress deformation. Background technique [0002] The main defect of the L-shaped titanium alloy ribbed plate produced by the traditional production process is that the wall thickness at the apex area of ​​the end of the plate stiffener is the most serious, which is also a key factor affecting product quality. [0003] After studying and analyzing the influence of main process parameters such as friction coefficient, strain rate, and deformation temperature on the superplastic forming properties of L-shaped titanium alloy ribbed plates in the traditional process, it is concluded that: except for the vertices at the ends of the four ribs of the plate, Outside the region, as the friction coefficient increases, the uniformity of the wall thickness distribution of the part become...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a process for processing L-shaped titanium alloy ribbed plates that can eliminate stress and deformation, so as to solve the technical problems in the prior art