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Milling method of precision cavity plane for thin-walled aluminum-magnesium casing of aero-engine

An aero-engine, precision technology, used in milling cutting inserts, milling machine equipment, details of milling machine equipment, etc., can solve the problems of low processing efficiency and low processing accuracy, and achieve the goal of improving cutting efficiency, eliminating scratches, and increasing speed. Effect

Active Publication Date: 2018-01-09
CHINA HANGFA SOUTH IND CO LTD
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Problems solved by technology

[0007] The invention provides a milling method for the precision cavity plane of the thin-walled aluminum-magnesium casing of an aero-engine to solve the problem of low processing accuracy and low processing efficiency in the existing processing methods using ordinary material blades or hard alloy blade type milling cutters. technical issues

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  • Milling method of precision cavity plane for thin-walled aluminum-magnesium casing of aero-engine
  • Milling method of precision cavity plane for thin-walled aluminum-magnesium casing of aero-engine
  • Milling method of precision cavity plane for thin-walled aluminum-magnesium casing of aero-engine

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Embodiment Construction

[0027] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings, but the present invention can be implemented in various ways defined and covered below.

[0028] figure 1 It is a block diagram of the steps of the milling method of the precision cavity plane of the thin-walled aluminum-magnesium casing of the aero-engine according to the preferred embodiment of the present invention; figure 2 It is a schematic structural diagram of the selected milling insert and its wiper blade in the part processing part of the preferred embodiment of the present invention; image 3 yes figure 2 A partial enlarged view of the cutting edge of the milling insert.

[0029] Such as figure 1 As shown, the milling method of the precision cavity plane of the thin-walled aluminum-magnesium casing of the aero-engine of the present embodiment comprises the following steps: a, select a diamond material and have a milling blade 2 with a...

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Abstract

The invention discloses a method for milling a precise cavity plane of a thin-wall aluminum-magnesium cartridge receiver of an aircraft engine. The method comprises the following steps: (a) selecting a diamond material and a milling blade with a smoothening edge, so that the plane cutting speed is increased, and the cutting efficiency is improved; (b) polishing the smoothening edge of the milling blade to form an angle alpha with a machined surface on the machined thin-wall aluminum-magnesium cartridge receiver; (c) optimizing milling machining parameters according to the milling blade and the smoothening edge of the milling blade; (d) fixing the machined thin-wall aluminum-magnesium cartridge receiver in a point supporting manner; and (e) carrying out surface milling machining on the precise cavity plane of the fixed machined thin-wall aluminum-magnesium cartridge receiver by virtue of the optimized milling machining parameters, so as to obtain the formed precise cavity plane of the thin-wall aluminum-magnesium cartridge receiver. According to the method, the plane cutting speed can be increased, the cutting efficiency can be improved, meanwhile, the cutting force can be decreased, and the friction between a cutter and machined parts is reduced, so that the vibration, cutter relieving and deformation of the plane in the machining cutting can be reduced, and finally the precision requirement of a big plane is guaranteed.

Description

technical field [0001] The invention relates to the technical field of aero-engine casing processing, in particular to an efficient milling method for a precision cavity plane of an aero-engine thin-walled aluminum-magnesium casing. Background technique [0002] There are many large aluminum-magnesium alloy casings in aero-engines. This type of casing contains many oil passages. The structure is large and complex, the wall thickness is thin, and it has a large cavity structure plane with low strength. The contact between these planes The matching requirements are high, that is, the flatness accuracy and roughness quality requirements of the casing plane are high. Generally, the flatness requirements are not greater than 0.01mm, and the roughness is not greater than 1.6. [0003] At present, the processing of the large plane of this casing is carried out by a common material blade or a hard alloy material blade type milling cutter for finishing. Has the following deficiencie...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23C3/00
CPCB23C3/00B23C2200/28
Inventor 邓元山徐舟宁雄杨建辉万坤黄强飞郑学著程璋胡志星李德强邹诚吴乐新康春辉倪慧文
Owner CHINA HANGFA SOUTH IND CO LTD
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