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A micro-hole cold forming process of fuel injection rod in combustion chamber

A process method and the technology of the fuel injection rod, which are applied in the direction of manufacturing tools, metal processing equipment, welding equipment, etc., can solve the problems of unsatisfactory atomization effect in the combustion chamber, short life of parts, burrs in the fuel injection rod of the combustion chamber, etc., and achieve Improve the atomization effect, meet the production needs, and stabilize the single-hole flow rate

Active Publication Date: 2018-10-23
SHENYANG LIMING AERO-ENGINE GROUP CORPORATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In view of the burrs in the fuel injection rod of the combustion chamber and the unsatisfactory atomization effect of the combustion chamber caused by the recasting layer or the short life of the parts in the prior art, the problem to be solved by the present invention is to provide a method that can improve the atomization effect and make the combustion more efficient. Micro-hole cold forming process of fuel injection rod in combustion chamber with sufficient and improved service life

Method used

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  • A micro-hole cold forming process of fuel injection rod in combustion chamber
  • A micro-hole cold forming process of fuel injection rod in combustion chamber
  • A micro-hole cold forming process of fuel injection rod in combustion chamber

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] Specimen material: 6 pieces of GH3536 parts with a length of 55mm and a diameter of 6mm (number 1~6);

[0053] Use alcohol to clean the part to be processed and dry it; find the positioning hole of the turntable of the machine tool, use the positioning pin to accurately position and fix the fixture on the turntable, and position and fix the part according to the positioning surface and positioning bolt on the fixture. On the fixture; use the Laserscan 3D scanning module to scan the part in segments with a line scan of the measuring laser head, with a step of 0.1mm; then load the measurement system calibration and laser drill calibration files, and export the machining coordinates of the machine tool; then read in the MMCPRO system The machining coordinates of the machine tool are used to call the focal length multi-hole measurement program to confirm the focus information of each hole; the laser parameters are set. The output power of the laser is 95%, and the repetition...

Embodiment 2

[0057] Specimen material: 6 pieces of GH3625 parts with a length of 55mm and a diameter of 6mm (number 6~12);

[0058] Use alcohol to clean the part to be processed and dry it; find the positioning hole of the turntable of the machine tool, use the positioning pin to accurately position and fix the fixture on the turntable, and position and fix the part according to the positioning surface and positioning bolt on the fixture. On the fixture; use the Laserscan 3D scanning module to scan the part in segments with a line scan of the measuring laser head, with a step of 0.1mm; then load the measurement system calibration and laser drill calibration files, and export the machining coordinates of the machine tool; then read in the MMCPRO system The machining coordinates of the machine tool are used to call the focal length multi-hole measurement program to confirm the focus information of each hole; the laser parameters are set. The output power of the laser is 95%, and the repetitio...

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Abstract

The invention relates to a micropore cold forming process method for a fuel injection rod in a combustion chamber. The method comprises the steps that a clamp is fixed to a machine tool rotary platform, and a part is fixed to the clamp; linear scanning is conducted on the part through a measuring laser head, and the profile of the part is determined; the scanning data are subjected to point cloud processing, and the measured point cloud data are subjected to pore site alignment; measurement system calibration and laser drill bit calibration files are loaded, and the machine tool machining coordinates are guided out; the machine tool machining coordinates are read, a focal length multi-pore measurement program is called, and the focus information of all pores is determined; the laser parameters are set; the machining head parameters are set and stored; the Z-axis single-step feed rate and the scanning layer number are set and stored, a multi-pore machining program is called, and machining is conducted; and cleaning is conducted after machining. By the adoption of the method, the problems of electrosparking of recasting layers and micro cracks and the like are solved; and the recasting layers are effectively prevented from generating through ultrafaster laser machining, the micro-crack single-pore flow is stable, the atomization effect of the part is improved, the new requirements of the fuel injection rod part machining are met, and the production requirements are met.

Description

technical field [0001] The invention relates to a processing technology of an oil injection rod of a combustion chamber, in particular to a process method of micro-hole cold forming of an oil injection rod of a combustion chamber. Background technique [0002] With the development of modern industry, the requirements for resource conservation and environmental protection are getting higher and higher. The fuel injection rod in the combustion chamber of an aero-engine determines whether the combustion is sufficient and can reduce pollution. Using the previous process to process the fuel injection rod, there are burrs, and the recast layer is prone to carbon deposits during combustion, resulting in unsatisfactory atomization in the combustion chamber and insufficient output power; at the same time, the recast layer is also a source of fatigue, resulting in a relatively short service life of the parts . Therefore, it is necessary to develop new technology to solve the above pr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23K26/382
CPCB23K26/382
Inventor 张恭轩杨涧石桓恒高宇魏鉴梅赵晨曦孙珅
Owner SHENYANG LIMING AERO-ENGINE GROUP CORPORATION