Thermoforming method of titanium alloy hook surface part

A technology for curved surface parts and titanium alloys, which is applied in the field of hot forming manufacturing of titanium alloy curved surface parts, can solve the problems that the part profile cannot reach the nominal size, the scaling factor is difficult to be accurately given, and the profile accuracy cannot meet the requirements, etc. To achieve the effect of simple design, good surface quality and high precision

Active Publication Date: 2013-11-06
HUBEI SANJIANG AEROSPACE GRP HONGYANG ELECTROMECHANICAL
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Problems solved by technology

[0006] However, due to the difficulty of accurately specifying the scale factor and the existence of the scale factor error, the shape of the formed part cannot reach the nominal size, that is, the actual size will deviate from the nominal size
Moreover, after the titanium alloy workpiece is formed, t

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  • Thermoforming method of titanium alloy hook surface part
  • Thermoforming method of titanium alloy hook surface part
  • Thermoforming method of titanium alloy hook surface part

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[0038] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below may be combined with each other as long as they do not constitute a conflict with each other.

[0039] In this embodiment, the TC4 curved surface skin is preferably taken as an example to describe the hot forming method of the titanium alloy curved surface part of the present invention.

[0040] Such as figure 1 As shown, the length of the TC4 curved skin is 450mm, the width of the large end is 420±0.1mm, the arch height of the large end is 300mm, the wall thickness is 2mm, and the surfac...

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Abstract

The invention discloses a thermoforming method of a titanium alloy hook surface part, which comprises the following steps: placing a forming die into a heating furnace of a press machine; placing the titanium alloy in the die, and heating the work blank and the die; conducting stamping forming on the work blank through the die by the press machine; opening the die after the workpiece and the die are cooled, taking out the workpiece, so as to accomplish titanium alloy surface part forming; the method provided by the invention is characterized in that the cooling is furnace cooling of the workpiece and the die, and the die is in a clamping state during the cooling process, that is the terrace die and the die are not separated. The invention further discloses a workpiece prepared by the method. According to the method provided by the invention, the heat shrinkable size is neglected, hook surface titanium skin, with a molded surface accuracy within 0.2 mm, can be conveniently processed, the quality consistency is good, and the heat formed die can be used as a test die base of the workpiece molded surface.

Description

technical field [0001] The invention relates to the technical field of manufacturing titanium alloy curved surface parts, in particular to a hot forming manufacturing method for titanium alloy curved surface parts. Background technique [0002] Titanium alloy curved surface parts are often used in aerospace products, such as titanium alloy skins, and such parts are generally formed by hot forming. [0003] Metal molds are generally used for hot forming of titanium alloys. Usually, the mold is first heated to a forming temperature above 650°C, and then the billet is put into the mold to preheat, and then the upper and lower molds of the mold are molded to form parts, and the pressure is kept for 5 to 10 minutes by a hydraulic press, and the mold is separated after forming. Remove the parts after they have cooled properly. [0004] When the titanium part and the mold are heated, the size of the two will increase with the increase of temperature. Generally, the size of the me...

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Application Information

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IPC IPC(8): B21D22/02
Inventor 张如平张军杭俊李玉喜王佑武
Owner HUBEI SANJIANG AEROSPACE GRP HONGYANG ELECTROMECHANICAL
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