Forming method of die forging clamps made of titanium alloy

A technology for die forgings and titanium alloys, which is applied to the forming field of die forgings of titanium alloy clamps, can solve the problems of reduced structure and performance of forgings, reduced die life, waste of metal materials, etc., so as to improve die life, reduce consumption and ensure quality. Effect

Active Publication Date: 2016-02-17
SHENYANG LIMING AERO-ENGINE GROUP CORPORATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Especially in the production of titanium alloy forgings with high deformation resistance and difficult metal flow, not only need to repeat heating and forging many times, wasting a lot of metal materials, but also the harsh production conditions will reduce the life of the die, increase the cost of the die, and even cause The microstructure and properties of forgings are reduced due to repeated heating

Method used

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  • Forming method of die forging clamps made of titanium alloy
  • Forming method of die forging clamps made of titanium alloy
  • Forming method of die forging clamps made of titanium alloy

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] The clamp type die forging of TC4 titanium alloy material, its forming method comprises the following steps:

[0025] (1) After heating the titanium alloy bar 4 to 930°C in a heating furnace and keeping it warm for 2 hours, put it on the lower anvil 6 of a 1 ton free forging machine, and flatten the bar under the impact of the upper anvil 5, as image 3 Shown in (a), make flat cuboid blank 7 through repeated hammering again, i.e. height is less than the cuboid of length and width;

[0026] (2) Stand up the flat cuboid blank, then tilt it with the shortest side as the axis, tilt it to an angle of 25° with the horizontal direction, and then forge it into a diamond-shaped blank after repeated hammering, shaping and elongation. The length D1 of the long diagonal line of the blank diamond-shaped surface is 140mm, and the length D2 of the short diagonal line is 88mm, such as image 3 as shown in (b);

[0027] (3) After cleaning the surface defects of the diamond-shaped blan...

Embodiment 2

[0030] The clamp type die forging of TC6 titanium alloy material, its forming method comprises the following steps:

[0031] (1) After heating the titanium alloy bar to 950°C in a heating furnace and holding it for 0.5h, use a 1.5-ton free forging machine to flatten the bar, and then hammer it several times to make a flat cuboid blank, that is a cuboid whose height is smaller than its length and width;

[0032] (2) Stand up the flat cuboid blank, then tilt it with the shortest side as the axis, tilt it to an angle of 15° with the horizontal direction, and then forge it into a diamond-shaped blank after repeated hammering, shaping and elongation. The length D1 of the long diagonal line of the blank diamond-shaped surface is 136mm, and the length D2 of the short diagonal line is 89mm;

[0033] (3) After cleaning the surface defects of the diamond-shaped blank prepared above, heat it to 940°C in a heating furnace and keep it warm for 1 hour. Put the punch on the drain plate, an...

Embodiment 3

[0036] The clamp type die forging of TA15 titanium alloy material, its forming method comprises the following steps:

[0037] (1) After heating the titanium alloy bar to 930°C in a heating furnace and holding it for 1 hour, use a 1-ton free forging machine to flatten the bar, and then hammer it several times to form a flat cuboid blank, that is, the height a cuboid smaller than its length and width;

[0038] (2) Stand up the flat cuboid blank, then tilt it with the shortest side as the axis, tilt it to an angle of 20° with the horizontal direction, and then forge it into a diamond-shaped blank after repeated beating, shaping and elongation. The length D1 of the long diagonal of the blank rhombus is 135mm, and the length D2 of the short diagonal is 87mm;

[0039] (3) After cleaning the surface defects of the diamond-shaped blank prepared above, heat it in a heating furnace to 930°C and keep it warm for 2 hours, place a leaking plate on the lower anvil of the free forging machi...

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Abstract

The invention aims at solving problems in the prior art, and provides a forming method of die forging clamps made of titanium alloy. The method belongs to the field of forging of titanium alloy materials. The method comprises the following steps of: cleaning up surface flaws of a rhombic blank made of the titanium alloy, heating the cleaned rhombic blank in a heating furnace till the temperature reaches 930-950 DEG C, and keeping the temperature for 0.5-2h; performing punching by an open die forging machine so as to obtain a rhombic blank with a through hole in the center; placing the rhombic blank with the through hole in the center in a forging die, and forging the rhombic blank into a die forging clamp by a die forging machine; and performing a trimming working procedure and a punching working procedure so as to obtain a finished product. According to the method disclosed by the invention, the forming load needed by die forging is greatly reduced, and the service life of a die is prolonged; besides, the consumption of precious raw materials is reduced, and the quality of titanium alloy forgings is guaranteed.

Description

technical field [0001] The invention belongs to the field of titanium alloy material forging, and in particular relates to a forming method of titanium alloy clamp-like die forgings. Background technique [0002] For the clamp-type forgings consisting of a hollow cylinder of revolution and two radially symmetrical branches, the branches of the forgings often cannot be filled when forging on the die forging hammer equipment, and defects such as folding appear in the cylinder. Especially in the production of titanium alloy forgings with high deformation resistance and difficult metal flow, not only need to repeat heating and forging many times, wasting a lot of metal materials, but also the harsh production conditions will reduce the life of the die, increase the cost of the die, and even cause Repeated heating leads to a decrease in the microstructure and properties of the forging. Contents of the invention [0003] The purpose of the present invention is to solve the prob...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21J5/02B21J5/10B21J1/04
CPCB21J1/04B21J5/02B21J5/10
Inventor 臧德昌马栓柱金悦裴玢
Owner SHENYANG LIMING AERO-ENGINE GROUP CORPORATION
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