A method for forming high-strength titanium alloy double-curved thin-walled wide plate

Abstract

The invention discloses a novel high-strength titanium alloy hyperboloid thin-wall wide plate forming method. The novel high-strength titanium alloy hyperboloid thin-wall wide plate forming method comprises the following steps that S1, a heat setting mold is manufactured; S2, a titanium alloy hyperboloid plate is formed; and S3, after all the work is completed, the profile modeling and cold forming and heat setting work of the high-strength titanium alloy hyperboloid thin-wall wide plate are completed completely, and has the follow-up assembly process requirements. According to the high-strength titanium alloy hyperboloid thin-wall wide plate profiling compression cold forming and hot setting forming method, cold pressing, hot-pressing or mold-free multi-point forming are taken into consideration, a special field is not needed, the width of the formed hyperboloid plate is doubled, the stress is small, the forming precision is relatively high and the like; the copying and mold pressingcold forming and heat setting are mainly the profiling pressing mold, the manufacturing of the heat setting mold of the titanium alloy hyperboloid plate and the heat setting work in the furnace afterthe titanium alloy plate is formed.

Description

technical field [0001] The invention belongs to the technical field of titanium alloys, in particular to a method for forming high-strength titanium alloy hyperboloid thin-walled wide plates. Background technique [0002] Titanium alloy has the advantages of high temperature resistance, corrosion resistance, low specific strength, and good comprehensive mechanical properties, and has been widely used in various fields such as aerospace, medicine, shipbuilding, and chemical industry. Titanium alloy has high strength, large anisotropy index, and high unit forming pressure. At the same time, titanium alloy has small elastic modulus, large rebound, and low stability under pressure, which is about 50% of ordinary materials. It is volatile Stable wrinkle, and poor bending ability, only 20% of ordinary materials. Therefore, it is of great significance to study the forming technology of high-strength titanium alloys for the use and promotion of titanium alloys. [0003] There are ...

AI Technical Summary

Problems solved by technology

The advantage of cold press forming is energy saving and environmental protection, without the need for a heating device, but its forming accuracy is poor, the forming interval is small, generally only used for processing parts with large curvature; the advantage of hot press forming is better forming ability, precision Higher, but because of its high requirements for heating devices and forming equipment, the cost is relatively high, and there must be a fixed site, special heating devices and related supporting feeding mechanisms or equipment

The advantage of moldless multi-point forming is that it eliminates the traditional mold design, manufacturing and debugging work, saves a lot of mold materials and the time, space and cost required to manufacture molds, can improve deformation conditions, increase the forming limit of plates, and expand the processing range , to realize the plastic deformation of difficult-to-machine materials; but because it is composed of three major systems including CAD system, microcomputer control system and mechanical system, it needs to invest a lot of manpower, material resources, financial and energy and pass a lot of test verification to realize it. greatly reduces its advantage

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