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A kind of powder superalloy step grate turning machining method

A high-temperature alloy and turning technology, which is applied in metal processing equipment, manufacturing tools, turning equipment, etc., to achieve the effect of reducing the cutting time

Active Publication Date: 2022-07-05
CHINA HANGFA GUIZHOU LIYANG AVIATION POWER CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention aims to solve the problem of turning the stepped grate teeth of the aero-engine rear seal grate disc. The deformation of the part's grate teeth improves the precision of part processing and ensures that the size and shape of the grate teeth meet the processing requirements

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  • A kind of powder superalloy step grate turning machining method
  • A kind of powder superalloy step grate turning machining method
  • A kind of powder superalloy step grate turning machining method

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Embodiment Construction

[0027] The technical solution of the present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that in the present invention, the axial direction of the rear sealing grate is used as the Z axis of the coordinate system, and the diameter of the rear sealing grate is used as the Z axis. to the X axis.

[0028] like figure 1 As shown, there are a pair of stepped grate teeth on the outer circumference of the rear sealing grate tooth plate, namely figure 1 The first grate teeth and the second grate teeth are located at different outer diameters, wherein the outer diameter of the position of the first grate tooth is larger than the outer diameter of the position of the second grate tooth. In this embodiment, the basic process of turning the first grate and the second grate is as follows: Figure 5 shown.

[0029] The following are the specific steps for turning the powder superalloy step grate:

[0...

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Abstract

The invention discloses a machining method for powder superalloy stepped grate, which is used for machining a first grate and a second grate located at different outer diameters. For rough turning, use layered cutting and one-way cutting for each layer of cutting; step 2, rough-turn the second grate, leave allowance, and use layered cutting for roughing and one-way cutting for each layer. Turning by means of cutting; step 3, finish turning the right half profile of the first and second grate teeth; step 4, finish turning the left half profile of the first and second grate teeth. The invention reduces unnecessary time for cutting tools and controls the deformation of the part grate teeth.

Description

technical field [0001] The turning machining method of the invention belongs to the technical field of turning machining of aero-engine disc parts, in particular to a high-precision turning method of stepped grate teeth of disc parts made of powdered superalloy material. Background technique [0002] Disc parts are important core components in aero-engines. Among them, the material of the rear sealing grate tooth plate needs to have high yield strength, tensile strength and good thermal stability, and can meet the requirements of reliable work at high temperature. [0003] Powder superalloy materials are more and more used in disc parts. On the one hand, powder superalloy materials are hard, and on the other hand, the structure of parts is complex. The thickness of the tip of the grate tooth of the grate tooth plate part of the rear seal is 0.32mm, and the width of the grate tooth ring groove is only 3mm. Therefore, the turning tool materials, tool paths, and turning proce...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23B5/00B23B25/06
CPCB23B5/00B23B25/06Y02P10/25
Inventor 惠畅张江峰孙登霞李亚初
Owner CHINA HANGFA GUIZHOU LIYANG AVIATION POWER CO LTD
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