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A processing method for an aircraft engine front casing

A technology of aircraft engine and processing method, which is applied to aircraft parts, transportation and packaging, etc. It can solve the problems of complicated processing steps, difficulty in guaranteeing processing size and precision, and achieve the effects of eliminating defects, ensuring strength and ensuring precision

Active Publication Date: 2018-02-16
GUIZHOU ZUNYI CHI YU PRECISION MACHINERY MFG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Using the existing processing method not only has complicated processing steps, but also it is difficult to guarantee the processing size and precision, which cannot meet the needs of the users.

Method used

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  • A processing method for an aircraft engine front casing
  • A processing method for an aircraft engine front casing
  • A processing method for an aircraft engine front casing

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Experimental program
Comparison scheme
Effect test

Embodiment

[0063] When processing this part, we first forge the material according to the requirements, and then check the acceptance according to the requirements of GB2351-1995. The specific requirements and steps are as follows: 1. Perform fluorescent inspection according to HB / Z61-1998, and X-ray inspection with level II sensitivity; 2. According to HB / Z61-1998 Z60-1996 for X-ray inspection; 3. The general tolerance is inspected according to HB5800-1999. When all indicators meet the requirements and the qualified form is filled out, the product flows into the next process.

[0064] Firstly, each size is roughly machined on the ordinary lathe C61150, leaving a machining allowance of about 2-5 mm, and then the internal and external dimensions are processed on the CNC machine tool CA61160 to meet the drawing requirements. Next, point out the positions of the threaded hole A2, the through hole A3, the through hole B4 and the through hole C5 on the CNC milling machine VMC-80; the clamp be...

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Abstract

The invention provides a processing method for a front casing of an aircraft engine. The processing method comprises the following steps of forging blank pieces; processing contours and inner holes after the blank pieces are qualified after testing; forming through holes or threaded holes in parallel with the axes of the corresponding inner holes; processing thick support plates and thin support plates; milling a plane A, a plane B, a plane C and forming the threaded holes on the planes; conducting surface treatment, appearance treatment and electrostatic treatment; and conducting leakage prevention testing, intensity testing and processing precision testing. By means of the processing method for the front casing of the aircraft engine, the selected blank pieces are forged, the built-in defects of materials are eliminated, and the strength of components after processing is guaranteed; numerically-controlled machine tools are utilized to process, positioning is accurate, accuracy of various processing sizes is guaranteed, and the sealing effect of the components after processing is ensured.

Description

technical field [0001] The invention relates to the technical field of mechanical manufacturing, in particular to a processing method for an aircraft engine front casing. Background technique [0002] The receiver is an important part of the jet engine, divided into front receiver and rear receiver. The working principle of the jet engine: the aircraft engine is started by the battery, and the air in the air is sucked into the air inlet after the rotation, and then enters the front casing. The gas is pressed backward step by step, the air enters the combustion chamber, injects gasoline, and at the same time uses electric ignition to make the gasoline burn, and then the expanded gas enters the rear casing, is pressed backward step by step through the turbine blades, and is ejected from the nozzle . High-pressure gas is ejected to generate powerful thrust. This is a very important part that is necessary for the design and production of our country. Its material is 2A70 (add...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23P15/00
CPCB23P15/00B23P2700/01
Inventor 邱怀鸣方建平
Owner GUIZHOU ZUNYI CHI YU PRECISION MACHINERY MFG