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Method of Rough Machining the Sealing Surface of Honeycomb Seals Using CNC Milling Machine

A honeycomb sealing, CNC milling machine technology, applied in milling machine equipment, milling machine equipment details, metal processing equipment and other directions, can solve the problems of low processing efficiency, large electrode loss, etc., to achieve easier removal, small sealing surface burrs, and reduce flanging. effect of the phenomenon

Active Publication Date: 2015-09-30
AECC AERO SCI & TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the EDM method can guarantee the quality of the sealing surface, the processing efficiency is very low, especially for the processing of grooved honeycomb, the processing efficiency is extremely low, and the electrode loss is large

Method used

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  • Method of Rough Machining the Sealing Surface of Honeycomb Seals Using CNC Milling Machine
  • Method of Rough Machining the Sealing Surface of Honeycomb Seals Using CNC Milling Machine

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Embodiment Construction

[0011] The method for rough machining the sealing surface of the honeycomb seal with a numerically controlled milling machine according to the present invention will be further described below through examples and in conjunction with the accompanying drawings.

[0012] In this embodiment, the sealing surface of the Φ600 honeycomb seal is roughly processed, and the metal sheet constituting the honeycomb seal is MSRR6624 / ERH corrosion-resistant steel foil. The milling machine used is a conventional CNC milling machine (model: VMC1250), and the milling cutter is figure 1 The shown corn sawtooth overall alloy milling cutter CBDB1000AXBS K600 [US KENNAMETAL company (Kenna company) production].

[0013] Place the processed honeycomb seal on the CNC milling machine and fix it, choose the down-milling method, control the spindle speed of the CNC milling machine at 2300 r / min, control the feed rate of the milling cutter at 0.15mm, and control the linear speed of the milling cutter at 7...

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Abstract

The invention discloses a method for roughly machining a sealing surface of a honeycomb sealing element by using a numerical control milling machine. A corn serrated milling cutter and a down cutting mode are adopted in the method, the revolving speed of a main shaft of the numerical control milling machine is controlled to be 2,200 to 2,500 revolutions per minute, the feed quantity of the milling cutter is controlled to be 0.15 to 0.2 millimeter, and the linear speed of the milling cutter is controlled to be 75 to 90 meters per minute.

Description

technical field [0001] The invention belongs to a processing method of a honeycomb seal, in particular to a method for rough machining the sealing surface of a honeycomb seal. Background technique [0002] Honeycomb seals are commonly used seals for gas flow seals, and are widely used in engines, gas turbines, and steam turbines. The honeycomb structure is pressed from a thin metal sheet, and each honeycomb component is formed by brazing a honeycomb structure ring strip and a thin-walled ring piece, and the structure is different. Regarding the machining of the sealing surface of the honeycomb seal, the EDM method is generally used in the prior art no matter the rough machining or the fine machining. Although the EDM method can guarantee the quality of the sealing surface, the processing efficiency is very low, especially for the processing of the grooved honeycomb, the processing efficiency is extremely low, and the electrode loss is large. In order to improve production ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23C3/00
Inventor 张体李芳赵小勇王力
Owner AECC AERO SCI & TECH CO LTD
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