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Control method of titanium alloy sectional material electric heating stretch bending process and stretch bending forming device

A control method and titanium alloy technology, applied in the control of electric heating stretch bending process of titanium alloy profiles, and in the field of stretch bending forming devices, can solve the problems of high cost and low efficiency, achieve short forming cycle, reduce cost, and improve tooling structure Effect

Active Publication Date: 2020-09-11
AVIC BEIJING AERONAUTICAL MFG TECH RES INST
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] The technical problem to be solved by the present invention is the low efficiency and high cost of the traditional titanium alloy profile heating stretch bending process

Method used

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  • Control method of titanium alloy sectional material electric heating stretch bending process and stretch bending forming device
  • Control method of titanium alloy sectional material electric heating stretch bending process and stretch bending forming device
  • Control method of titanium alloy sectional material electric heating stretch bending process and stretch bending forming device

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Embodiment Construction

[0046] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0047] In the description of the present invention, it should be noted that unless otherwise specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection. Connected, or integrally connected; it may be mechanically connected or electrically connected; it may be directly connected or indirectly connected through an intermediary, and it may be the internal communication of two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention in specific situations.

[0048] According to the...

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Abstract

The invention discloses a control method of a titanium alloy sectional material electric heating stretch bending process and a stretch bending forming device. The control method includes the steps that a titanium alloy sectional material is clamped, and a copper plate is fixed to the suspended section of the titanium alloy sectional material; the titanium alloy sectional material is heated; when the titanium alloy sectional material is heated to the first set temperature, the titanium alloy sectional material is subjected to pre-stretching and bending forming; after bending forming of the titanium alloy sectional material ends, heating electric current is increased, wherein the temperature of the suspended section of the titanium alloy sectional material is lower than that of the bent section of the titanium alloy sectional material; and when the bent section of the titanium alloy sectional material is heated to the second set temperature, the titanium alloy sectional material is subjected to supplementary stretching deformation. The control method of the titanium alloy sectional material electric heating stretch bending process aims at solving the problems that a traditional titanium alloy sectional material heating and stretch bending process is low in efficiency and high in cost.

Description

technical field [0001] The invention belongs to the technical field of metal forming, and in particular relates to a control method and a stretch bending forming device for a titanium alloy section bar electrothermal stretch bending process. Background technique [0002] The application of carbon fiber reinforced composite fuselage structures in advanced civil and military aircraft is gradually increasing. Titanium alloy materials are more and more used in advanced aircraft due to their potential compatibility and impact resistance with composite materials. Titanium alloy forging, machining and heat treatment quality control is difficult and costly. Titanium alloy curved profiles have become the main structure of composite fuselage load-bearing components, and are used in fuselage load-bearing frame girders, central wing boxes, and main landing gear gears. Mechanism brackets, and door frames, etc. Therefore, the forming quality of titanium alloy profile bending parts is dire...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21D7/06B21D7/16B21D37/16B21C51/00
CPCB21C51/00B21D7/063B21D7/16B21D7/162B21D37/16
Inventor 曾元松曹凤超刘宝胜吴为
Owner AVIC BEIJING AERONAUTICAL MFG TECH RES INST
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