Titanium alloy U-shaped part viscous medium room-temperature forming method

A viscous medium and titanium alloy technology, applied in forming tools, metal processing equipment, manufacturing tools, etc., can solve the problems that titanium alloy sheets cannot be formed at room temperature, and achieve low cost, simple mold structure, and small springback effects

Active Publication Date: 2021-06-11
HARBIN INST OF TECH
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Problems solved by technology

[0005] The technical problem to be solved by the present invention is to solve the problem that the titanium alloy plate cannot be formed at room temperature

Method used

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  • Titanium alloy U-shaped part viscous medium room-temperature forming method
  • Titanium alloy U-shaped part viscous medium room-temperature forming method
  • Titanium alloy U-shaped part viscous medium room-temperature forming method

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Embodiment Construction

[0038] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0039] A method for forming titanium alloy U-shaped parts in a viscous medium at room temperature, combining Figure 1-Figure 7 , including the following steps:

[0040] Ⅰ. Place the plate blank 3 on the die 1, the titanium alloy grade of the plate blank 3 is TA12, TA15, TC4 or TC21; load the plate blank 3 through the rigid punch 2 to realiz...

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Abstract

The invention relates to a titanium alloy U-shaped part viscous medium room-temperature forming method. The method comprises the following steps that I, a plate blank is placed on a female die, and load is added to the plate blank by means of a rigid male die to realize preforming; II, the load, added to the plate blank, of the rigid male die is removed, and the plate blank is taken out of the female die to be ground, so that the plate blank becomes a preformed part; III, the preformed part made of the plate blank is mounted into the female die again, meanwhile, an injection mold is mounted on the female die, and the injection mold is filled with a viscous medium; and IV, a plunger adds load to the viscous medium, the viscous medium flows out of the injection mold via an injection hole in the injection mold and makes contact with the preformed part made of the plate blank, the viscous medium flowing out of the injection mold applies forming force to the preformed part made of the plate blank, and the preformed part made of the plate blank is gradually deformed and finally tightly attached to a cavity in the female die. The method has the advantages of being simple in structure, capable of achieving room-temperature forming of titanium alloy plates, efficient and low in cost.

Description

technical field [0001] The invention relates to the technical field of titanium alloy plate forming, in particular to a method for forming a titanium alloy U-shaped piece in a viscous medium at room temperature. Background technique [0002] Titanium alloy has the characteristics of high specific strength, heat resistance, corrosion resistance, and non-magnetic properties, and is widely used in aviation, aerospace, weapons, ships and other fields. However, titanium alloy has problems such as low yield and easy cracking in plastic forming, and is a difficult-to-process material. At present, the forming methods of titanium alloy sheet mainly include thermal creep forming, hot press forming, superplastic forming and hot spinning forming. The stamping and forming method of titanium alloy sheet at room temperature has not been practically used, so it is necessary to develop a low-cost and high-efficiency room temperature forming process technology for titanium alloy. [0003] T...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21D26/021B21D37/10
CPCB21D26/021B21D37/10
Inventor 王忠金冯业坤杨继平
Owner HARBIN INST OF TECH
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