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Heat treatment deformation control method of titanium alloy double-layer curved wing plate parts

A double-layer curved surface and titanium alloy technology, which is applied to metal processing machinery parts, manufacturing tools, metal processing equipment, etc., can solve problems such as thermal expansion and contraction, thermal deformation, etc., to improve efficiency, save costs, and reasonable fixture structure Effect

Active Publication Date: 2016-08-03
XI'AN AIRCRAFT INTERNATIONAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This kind of tooling is different from ordinary machining equipment. It has to work repeatedly in the hot and cold cycle of high temperature heating and cooling, which will cause thermal expansion and contraction, and it will also face the problem of thermal deformation.

Method used

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  • Heat treatment deformation control method of titanium alloy double-layer curved wing plate parts
  • Heat treatment deformation control method of titanium alloy double-layer curved wing plate parts
  • Heat treatment deformation control method of titanium alloy double-layer curved wing plate parts

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Experimental program
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Effect test

Embodiment Construction

[0018] Referring to the accompanying drawings, the part 1 in the embodiment is a titanium alloy double-layer curved wing plate part in a certain type of aircraft, and the material of the part is a Ti-6Al-4V free forging. Such as figure 1 As shown, the part is about 1 meter long, the wall thickness and rib thickness are 5mm, and this part is different from the general edge part. The general edge part has vertical ribs on one curved surface, while this part is on the upper and lower curved surfaces. There are vertical tendons. The surface of the part that needs to control the deformation, including the upper and lower surfaces of the lower wing and the lower surface of the lower wing, are all precision surfaces, and the design theoretical shape data of the part is known.

[0019] In order to control the deformation of the part during heat treatment, the present invention discloses such as image 3 In the shown control method, at first there must be a deformation control fixtur...

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Abstract

A heat treatment deformation control method for titanium alloy double-layer curved surface long edge strip parts. The part is composed of a thin-walled curved upper wing plate, a lower layer wing plate, and a vertical rib running through the center of the double-layer curved surface wing plate. There is a deformation control fixture. The fixture consists of a fixture body, a positioning platform fixed on the fixture body, a pressing block and a supporting positioning plate of the upper wing plate, the parts are placed on the upper surface of the positioning platform, and the vertical ribs of the parts are embedded in the vertical rib avoidance grooves between the positioning platforms Inside, the deformation control jig and the part are heat treated together, and then the part is separated from the deformation control jig.

Description

technical field [0001] The application belongs to the field of heat treatment of aircraft parts, and relates to a method for controlling heat treatment deformation of aircraft titanium alloy double-layer curved wing plate parts. Background technique [0002] In aircraft manufacturing, there are many double-layer curved wing-like machined parts. Most of these parts are Ti-6Al-4V forgings in the raw material state, and their structure is thin. ribs. With the continuous development of aircraft technology, in some large aircraft, these double-layer curved wing plate parts are longer in length, complex in shape, large in curvature change and thin in wall. The theoretical outer surface and vertical rib surface of these double-layer curved wing plate parts need to be processed by multiple CNC machining, which are CNC rough milling, semi-finish milling, and fine milling. [0003] In the machining production of titanium alloy double-layer curved wing plate machining parts, great in...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23Q3/06
Inventor 史春玲王建峰王浩军田有安
Owner XI'AN AIRCRAFT INTERNATIONAL
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