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A processing method for controlling processing deformation of titanium-aluminum alloy thin-wall casing

A titanium-aluminum alloy and processing method technology, applied in the field of parts processing, can solve the problems of tool wear, large removal allowance, unsafe tool travel trajectory, etc., and achieve the effect of increasing the processing speed and improving the processing efficiency.

Inactive Publication Date: 2016-01-20
SHENYANG LIMING AERO-ENGINE GROUP CORPORATION
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  • Application Information

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Problems solved by technology

[0002] A titanium-aluminum alloy thin-walled case of an aero-engine. The raw material of the part is forging. Due to the special structure of the part, strict dimensional tolerance requirements, a very large removal allowance, and high hardness of the material, it is extremely difficult to process, and the part is easy to process during processing. produce deformation
The entrance width of the cavity of this part is only 24mm, the maximum depth of the cavity reaches 55mm, and it is a thin-walled surface. Because the groove is too deep, there is no suitable tool for processing; the part has a special structure, and the part and the tool are easy to process during processing. If there is a collision, the tool trajectory is unsafe; the material of the part is hard, and the tool wear is serious, so the machining accuracy cannot be guaranteed; the wall of the part is thinner during the finish turning (the wall thickness after cavity processing is 2mm), and the part is easy to produce when the surface is processed. out of shape

Method used

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  • A processing method for controlling processing deformation of titanium-aluminum alloy thin-wall casing
  • A processing method for controlling processing deformation of titanium-aluminum alloy thin-wall casing
  • A processing method for controlling processing deformation of titanium-aluminum alloy thin-wall casing

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Embodiment Construction

[0023] Such as figure 1 The shown titanium-aluminum alloy thin-walled casing, the outer circle is The finished groove on the outer wall has a groove depth of 55mm and a groove width of 24mm; the outer circle of the rough forging is

[0024] A processing method for controlling processing deformation of a titanium-aluminum alloy thin-wall casing, the processing method comprising the following steps:

[0025] (1) Rough turning process one: process a straight groove on the outer wall of the titanium-aluminum alloy thin-walled casing forging to obtain a rough-machined semi-finished product; the groove depth of the straight groove is 40 mm, and the groove width is 16 mm; The process parameters of the straight groove are: speed n=8r / min, feed rate f=0.1mm / r, depth of cut ap=6mm, using a welding turning tool, and the material of the turning tool is YD15;

[0026] (2) Heat treatment step 1: heat-treat the rough-processed semi-finished product, the quenching temperature is 1060°C, ...

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Abstract

The invention relates to a processing method for controlling processing deformation of a titanium-aluminum alloy thin-wall case. The technical scheme of the processing method is as follows: the processing method comprises the steps as follows: a primary rough turning process, a primary heat treatment process, a secondary rough turning process, a secondary heat treatment process, a fine turning process, a third heat treatment process and a finish turning process. According to the processing method for controlling the processing deformation of the titanium-aluminum alloy thin-wall case, reasonable processing parameters are set, and an appropriate cutter is used, so that the processing deformation of the titanium-aluminum alloy thin-wall case is controlled, and the processing requirement is met.

Description

technical field [0001] The invention relates to a processing method of a part, in particular to a processing method for controlling the processing deformation of a titanium-aluminum alloy thin-wall casing. Background technique [0002] A titanium-aluminum alloy thin-walled case of an aero-engine. The raw material of the part is forging. Due to the special structure of the part, strict dimensional tolerance requirements, a very large removal allowance, and high hardness of the material, it is extremely difficult to process, and the part is easy to process during processing. deformed. The entrance width of the cavity of this part is only 24mm, the maximum depth of the cavity reaches 55mm, and it is a thin-walled surface. Because the groove is too deep, there is no suitable tool for processing; the part has a special structure, and the part and the tool are easy to process during processing. If there is a collision, the tool trajectory is unsafe; the material of the part is ha...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23P15/00B23B1/00
CPCB23B1/00B23P15/00
Inventor 袁仲欣马艳玲王兴超李冬梅刘娜
Owner SHENYANG LIMING AERO-ENGINE GROUP CORPORATION
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