THE FEM SIMULATION OF DIESEL INJECTOR NOZZLE DRILLING

International Journal of Research in Engineering and Technology Pub Date : 2018-10-25 DOI:10.15623/ijret.2018.0710014

Mian Gong .

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Abstract

With the increasingly strict requirements for diesel engine emissions and the maturity of high-pressure common rail injection technology, the requirements for nozzles in the industry are also increasing. The quality of the nozzle hole has great influence on the performance of the diesel engine. Therefore, how to improve the quality of nozzle hole processing and improve production efficiency has become a problem to be solved. In this paper, based on the theory of high-speed metal micro-cutting, using digital design and computer simulation, the drilling of diesel engine injector nozzle holes is studied. The research contents include the chip formation mechanism and the characteristics of drilling process. The research objectives are as follows: based on the experiments of nozzle hole drilling, the relationship between drilling characteristics and drilling parameters in the process of nozzle hole drilling is studied; the formation process of nozzle hole chip is studied. In drilling simulations, 20CrMo is used as workpiece material and carbide micro-bit is used to process the nozzle holes. Third Wave Advantedge finite element simulation software is used in the simulation.

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柴油机喷油器喷口钻进过程的有限元模拟

随着对柴油机排放要求的日益严格和高压共轨喷射技术的成熟，工业上对喷嘴的要求也越来越高。喷管孔的质量对柴油机的性能有很大的影响。因此，如何提高喷嘴孔加工质量，提高生产效率成为亟待解决的问题。本文以高速金属微切削理论为基础，采用数字化设计和计算机仿真技术，对柴油机喷油器喷油器孔的钻削进行了研究。研究内容包括切屑形成机理和钻削过程特征。研究目标如下:在喷嘴钻孔实验的基础上，研究喷嘴钻孔过程中钻孔特性与钻孔参数之间的关系;研究了喷嘴孔屑的形成过程。在钻孔模拟中，采用20CrMo作为工件材料，使用硬质合金微钻头加工喷嘴孔。仿真中采用了Third Wave Advantedge有限元仿真软件。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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International Journal of Research in Engineering and Technology

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