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Machining die and machining method for high-strength titanium alloy pipe blank

A technology for processing molds and processing methods, applied in metal processing equipment, forming tools, manufacturing tools, etc., can solve the problems of poor material forming performance, large deformation resistance, serious springback, etc., and achieve high forming accuracy, low cost, and easy operation. easy effect

Active Publication Date: 2020-11-03
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The problem solved by the invention is that when the high-strength titanium alloy is deformed at room temperature, the deformation resistance is large, the springback is serious, and the formability of the material is particularly poor, which is difficult to prepare by using the traditional tube-making process.

Method used

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  • Machining die and machining method for high-strength titanium alloy pipe blank
  • Machining die and machining method for high-strength titanium alloy pipe blank
  • Machining die and machining method for high-strength titanium alloy pipe blank

Examples

Experimental program
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Embodiment 1

[0068] Such as Figure 5-6 As shown, the embodiment of the present invention provides a method for processing a high-strength titanium alloy conical tube blank, comprising the following steps:

[0069] Step S0, expand according to the diameter of the neutral layer of the tapered tube billet, cut out the fan-shaped Ti55 high-strength titanium alloy sheet 13, and grind a 15° bevel on the straight edge section, such as Figure 5shown. Boron nitride lubricant is sprayed on the surface of the Ti55 high-strength titanium alloy sheet material 13, the shaping cavity 14 and the third module 5, on the one hand to ensure that the Ti55 high-strength titanium alloy sheet material 13, the shaping cavity 14 and the The friction force of the third module 5 is small, and on the other hand, it prevents oxidation of the Ti55 high-strength titanium alloy sheet 13 under high temperature.

[0070] Step S1, after heating the second module 6 to 750°C through the induction coil, place the Ti55 high-...

Embodiment 2

[0075] An embodiment of the present invention provides a method for processing a high-strength titanium alloy round tube blank, comprising the following steps:

[0076] In step S0, unfold according to the diameter of the neutral layer of the circular tube billet, cut out a rectangular TC4 high-strength titanium alloy sheet 13, and grind a 15° bevel on the straight edge section. Boron nitride lubricant is sprayed on the surface of TC4 high-strength titanium alloy sheet material 13, the shaping cavity 14 and the third module 5, on the one hand to ensure that the TC4 high-strength titanium alloy sheet material 13, shaping cavity 14 and The frictional force of the third module 5 is small, and on the other hand, it prevents the oxidation of the TC4 high-strength titanium alloy sheet 13 under high temperature;

[0077] Step S1, after heating the second module 6 to 700°C through the induction coil, place the TC4 high-strength titanium alloy sheet 13 between the two limiting bosses 9 ...

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Abstract

The invention provides a machining die and machining method for a high-strength titanium alloy pipe blank, and relates to the technical field of machine manufacturing. The machining die for the high-strength titanium alloy pipe blank comprises a first die part, a second die part and a third die part connected with the first die part, and the first die part is arranged on the upper portion of the second die part; the third die part is connected with the first die part through a first limiting part, is in sliding connection with the first limiting part and is suitable for moving in the directionclose to or far away from the second die part; the second die part comprises a shaping cavity extending in the direction away from the first die part along the end face, close to the first die part,of the second die part, the shape of the shaping cavity is matched with the contour shape of the third die part, the second die part is used for containing a to-be-machined high-strength titanium alloy plate, and the high-strength titanium alloy plate is suitable for covering the shaping cavity. The machining die and method are simple and convenient, high in efficiency, low in cost, high in controllability, high in forming precision, excellent in performance and wide in application prospect.

Description

technical field [0001] The invention relates to the technical field of mechanical manufacturing, in particular to a processing mold for a high-strength titanium alloy tube blank and its application. Background technique [0002] Titanium alloy pipe fittings are widely used in aerospace engine hydraulic pipelines. However, the current titanium alloy pipe fittings are mostly made of pure titanium or low-strength titanium alloy pipes. With the continuous improvement of aircraft maneuverability requirements, the pressure of hydraulic pipelines is also increasing. Continuously rising, pure titanium and low-strength titanium alloy pipes cannot meet the demand for use. However, when high-strength titanium alloys are deformed at room temperature, the deformation resistance is large, the springback is serious, and the formability of the material is particularly poor. It is difficult to prepare by traditional tube-making processes (such as extrusion, rolling, etc.), especially when th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21D5/02B21D37/10B21D37/16B21D37/18
CPCB21D5/0209B21D5/02B21D37/16B21D37/18
Inventor 王克环王东君刘钢
Owner HARBIN INST OF TECH
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