The Honing Machining Method of Carburizing Holes of Aero-engine Tappet Guide Sleeves

A technology for aero-engine and honing processing, which is applied to honing machine tools, metal processing equipment, and parts of grinding machine tools. It can solve problems such as unevenness, large grinding force, and low efficiency of carburizing holes in aero-engine tappet guide sleeves. , to achieve the effect of uniform grinding force, high processing efficiency and high cooling frequency

Active Publication Date: 2022-05-06
AVIC POWER ZHUZHOU AVIATION PARTS MFG
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The invention provides a method for honing the carburized hole of the lifter guide sleeve of an aero-engine to solve the technical problems of low efficiency, large and uneven grinding force of the carburized hole of the lifter guide sleeve of the aero-engine in ordinary internal grinding machine processing

Method used

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  • The Honing Machining Method of Carburizing Holes of Aero-engine Tappet Guide Sleeves
  • The Honing Machining Method of Carburizing Holes of Aero-engine Tappet Guide Sleeves
  • The Honing Machining Method of Carburizing Holes of Aero-engine Tappet Guide Sleeves

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Embodiment 1

[0060] The honing method of the carburizing hole of the lifter guide sleeve of the aero-engine uses the CNC machining boring tool to grind the carburizing hole of the lifter guide sleeve to 0.215mm, install the lifter guide sleeve on the honing machine, and align the lifter For the carburized hole of the guide sleeve, the carburized hole is divided into four honing processes until the surface finish of the carburized hole is Ra≤0.02. The four honing processes include rough honing, semi-finishing honing, fine honing and super-finishing honing. And optimize the honing processing parameters, so that there is no burn or crack defect in the carburized hole of the tappet guide bush, and the internal surface finish of the carburized hole of the tappet guide bush is close to the mirror level;

[0061] The four-pass honing process includes the following steps:

[0062] S1: Carry out rough honing processing, the removal allowance is 0.15mm, the reciprocating single feed rate is 0.01mm, ...

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Abstract

The invention discloses a method for honing a carburized hole of a lifter guide sleeve of an aero-engine. A numerical control boring tool is used to process the carburized hole of a lifter guide sleeve to remove the allowance to 0.2 mm to 0.3 mm, and the lifter guide sleeve is installed on the On the honing machine, align the carburized hole of the tappet guide bush, and process the carburized hole four times until the surface finish of the carburized hole is Ra≤0.02. The four honing processes include rough honing, semi-finishing honing, and fine honing Processing and ultra-fine honing processing, and the honing process parameters are optimized, so that there is no burn or crack defect in the carburized hole of the tappet guide bush, and the internal surface finish of the carburized hole of the tappet guide bush is close to the mirror level. The honing method of the carburized hole of the tappet guide sleeve of the aero-engine has high processing efficiency, uniform grinding force, high cooling frequency, sufficient cooling, no burns and crack defects, and the surface finish of the inner hole is close to the mirror surface level.

Description

technical field [0001] The invention relates to the field of aero-engine processing, in particular to a method for honing a carburized hole of a tappet guide sleeve of an aero-engine. Background technique [0002] As a heat treatment process for metal materials, carburizing and quenching makes the surface of the parts have higher hardness and better wear resistance after carburizing and quenching. It is widely used in the field of aero-engine manufacturing, but it is difficult to process. problem. The dimensional accuracy and surface quality of aero-engine parts are very high, but the parts are deformed after carburizing and quenching heat treatment, and the surface finish becomes poor, so the carburized holes need to be ground. Ordinary grinding wheels grind carburized holes, the heat of the grinding part is concentrated, and secondary burns are prone to occur. At the same time, the grinding force is large, the parts are unevenly stressed, and they are subjected to grindin...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B24B33/02B24B47/20B24B1/00B24B55/02B24B49/00
CPCB24B33/02B24B47/20B24B1/00B24B55/02B24B49/006
Inventor 汤涛杨鹏王熔罗思洁袁新华
Owner AVIC POWER ZHUZHOU AVIATION PARTS MFG
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