Hot forming tool of titanium alloy thin-wall part and machining method of hot forming tool

Abstract

The invention provides a hot forming tool of a titanium alloy thin-wall part, comprising five parts, namely stretching equipment, a mould device, a blank, a power supply system and a temperature control system, wherein the mould device is arranged on a central worktable of the stretching equipment; the blank passes through a side wall crack of the mould device; an insulating and heat-insulation cushion layer is used for insulating the blank, a clamp of the stretching equipment, the surface of a mould and a tool of the mould; the power supply system is switched on to electrify an electrode clamping plate and generate a current in the blank; the blank is heated and the temperature of the blank is measured and controlled by the temperature control system; and after the temperature of the blank reaches a target temperature, the part is formed on the surface on the mould by the blank in an adhered manner through carrying out hot forming processes successively including stretching, covering, stretching, heat preservation and creep deformation and the like on the stretching equipment. A machining method of the hot forming tool of the titanium alloy thin-wall part comprises eight steps. According to the invention, the heating efficiency, the process integration, the material formation and the formation precision of the titanium alloy thin-wall part in manufacture are greatly improved, so that the hot forming tool of the titanium alloy thin-wall part and the machining method of the hot forming tool have a practical value and a popularization value.

Description

technical field [0001] The invention relates to a thermal forming tooling and processing method for titanium alloy thin-walled parts, which are used for thermal forming of titanium alloys, magnesium alloys, high-strength steels and other difficult-to-form materials at room temperature, especially for titanium alloy thermal forming, and belong to the technical field of thermal processing. technical background [0002] Titanium alloy materials have high specific strength, high ultimate strength, and excellent metallurgical compatibility and coordination characteristics with composite materials, and galvanic corrosion is small. Therefore, large titanium alloy thin-walled parts are high temperature resistant and long life in the aerospace field Advanced lightweight and high-efficiency structural components are required to be used preferentially, but their precise forming is difficult and the process is complicated, and thermoforming is usually used. If the traditional billet hea...

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Problems solved by technology

[0003] 1. Purpose: The purpose of the present invention is to solve the problem of thermal forming of titanium alloy thin-walled parts. If only the blank is heated, the forming quality of the thin plate part will be poor; if it is heated together with the mold, the heat utilization rate will be low and a lot of waste Energy; if the heated blank is kept at high temperature for too long, the oxidation will be aggravated, and a thermal forming tooling and processing method for titanium alloy thin-walled parts are provided

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