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A Turning Processing Method for Radial Plate Parts of Integral Impeller Parts

A technology of integral impeller and processing method, which is applied in the direction of turning equipment, metal processing equipment, manufacturing tools, etc., can solve the problems of high surface accuracy and roughness, long processing time, etc., and achieve the goal of providing surface quality and prolonging life Effect

Inactive Publication Date: 2016-07-13
SHENYANG LIMING AERO-ENGINE GROUP CORPORATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, the radial plate is long, the wall is flat, the surface precision and roughness requirements are high, and the processing time is long. The traditional turning method is difficult to achieve the goal of saving processing time and ensuring technical requirements.

Method used

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  • A Turning Processing Method for Radial Plate Parts of Integral Impeller Parts

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] A turning processing method for the spoke part of integral impeller parts, aiming at the machining process of the disc profile in the superalloy (GH4169) integral impeller with a diameter of 117-455mm, the cutting tool used is ISCAR coated carbide 35° diamond For the blade, the margin before machining is 1mm, and the margin after machining is 0.4mm. The turning processing method of the radial plate part of this kind of parts is as follows:

[0045] Processing in three steps:

[0046] 1) The first time: the cutting line speed is 20m / min, the feed rate is 0.16mm / r, the cutting time is 45min, and the surface quality is Ra3.2;

[0047] 2) The second time: the cutting line speed is 36m / min, the feed rate is 0.16mm / r, the cutting time is 27min, and the surface quality is Ra1.60;

[0048] 3) The third time: the cutting linear speed is 60m / min, the feed rate is 0.16mm / r, the cutting time is 16min, and the surface quality is Ra1.60.

[0049] Will figure 1 As a representative,...

Embodiment 2

[0070] A method for turning the spoke part of an integral impeller part. Aiming at the machining process of the spoke surface of a stainless steel disc body with a diameter of 230-420mm, the tool used is a SANDVIK coated carbide φ12 round blade, and the allowance before machining is 1.5 mm, the margin after processing is 0.3mm. The turning processing method of the web part of this kind of parts is as follows:

[0071] Processing in three steps:

[0072] 1) The first time: the cutting line speed is 36m / min, the feed rate is 0.16mm / r, the cutting time is 20min, and the surface quality is Ra3.2;

[0073] 2) The second time: the cutting line speed is 65m / min, the feed rate is 0.16mm / r, the cutting time is 12min, and the surface quality is Ra1.60;

[0074] 3) The third time: the cutting linear speed is 120m / min, the feed rate is 0.16mm / r, the cutting time is 0.5min, and the surface quality is Ra1.60.

Embodiment 3

[0076] A turning processing method for the spoke part of an integral impeller part. Aiming at the machining process of the spoke plate surface of a titanium alloy integral impeller disc with a diameter of 246-620mm, the cutting tool used is a KENNAMETAL coated carbide 80° rhombic blade. The allowance is 1.5mm, and the allowance after processing is 0.3mm. The turning processing method of the web part of this kind of parts is as follows:

[0077] Processing in three steps:

[0078] 1) The first time: the cutting line speed is 27m / min, the feed rate is 0.16mm / r, the cutting time is 80min, and the surface quality is Ra3.2;

[0079] 2) The second time: the cutting line speed is 50m / min, the feed rate is 0.16mm / r, the cutting time is 45min, and the surface quality is Ra1.60;

[0080] 3) The third time: the cutting linear speed is 68m / min, the feed rate is 0.16mm / r, the cutting time is 32min, and the surface quality is Ra1.60.

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Abstract

A method for turning a spoke plate part of an integral wheel type component is characterized in that the cutting speed of a cutting point is required to be constant, the cutting linear speed is 20-120 m / min, and the feed amount is 0.16 mm / r. According to the technical scheme, the constant cutting speed is adopted, and in a cutting process, the component removal rate can be guaranteed to be unchanged, and the load borne by a cutter is basically unchanged, so that the service life of the cutter is greatly prolonged, and the surface quality of a component is provided.

Description

technical field [0001] The invention relates to the field of mechanical manufacturing, and in particular provides a method for turning the web part of an integral impeller part. Background technique [0002] In the prior art, most of the materials in the overall impeller and disc parts of the aero-engine are difficult-to-machine materials, such as titanium alloys and high-temperature alloys. In addition, the radial plate is long, the wall is flat, the surface precision and roughness requirements are high, and the processing time is long. The traditional turning method is difficult to achieve the purpose of saving processing time and ensuring technical requirements. People expect to obtain a method for turning the web part of integral impeller parts with better technical effect. Contents of the invention [0003] The purpose of the present invention is to provide a method for turning the web part of the integral impeller parts with better technical effect. [0004] The pr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23B1/00B23B27/14
Inventor 李丹刘德生岳召启张积瑜
Owner SHENYANG LIMING AERO-ENGINE GROUP CORPORATION
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