金属粉末对近干电火花加工影响的研究

IF 1.2 4区工程技术 Q3 ENGINEERING, MECHANICAL

Strojniski Vestnik-Journal of Mechanical Engineering Pub Date : 2020-04-15 DOI:10.5545/sv-jme.2019.6475

S. Sundriyal, Vipin, R. S. Walia

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引用次数: 6

摘要

近干放电加工(ND-EDM)是一种环保工艺。在本研究中，提出了在EN-31模具钢的电介质中加入金属粉末的加工方法，使其加工效率高于ND-EDM。与ND-EDM或传统的电火花加工(EDM)工艺相比，粉末混合近干EDM (PMND-EDM)具有几个优点，例如更高的材料去除率(MRR)、良好的表面光洁度(Ra)、锋利的切削刃、更少的重铸层和更少的碎屑沉积。输出响应变量为加工表面的MRR、Ra、残余应力(RS)和显微硬度(MH)。对工件进行了进一步的研究，并对ND-EDM和PMND-EDM进行了对比研究。采用该加工方法，MRR、Ra和MH分别提高了17.85%、16.36%和62.69%，RS降低了56.09%。

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Study on the Influence of Metallic Powder in Near-Dry Electric Discharge Machining

Near-dry electrical discharge machining (ND-EDM) is an eco-friendly process. In this study, an approach has been made to make the machining process more efficient than ND-EDM with the addition of metallic powder with the dielectric medium to machine EN-31 die steel. Powdermixed near-dry EDM (PMND-EDM) has several advantages over the ND-EDM or conventional electrical discharge machining (EDM) process, such as a higher material removal rate (MRR), fine surface finish (Ra), sharp cutting edge, lesser recast layer, and lower deposition of debris. The output response variables are MRR, Ra, residual stress (RS) and micro-hardness (MH) of the machined surfaces. Further study of the workpiece was performed, and a comparative study was conducted between ND-EDM and PMND-EDM. In this proposed method of machining, the MRR, Ra, and MH increased by 17.85 %, 16.36 %, and 62.69 % while RS was reduced by 56.09 %.

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来源期刊

Strojniski Vestnik-Journal of Mechanical Engineering 工程技术-工程：机械

CiteScore

3.00

自引率

17.60%

发文量

审稿时长

4.1 months

期刊介绍： The international journal publishes original and (mini)review articles covering the concepts of materials science, mechanics, kinematics, thermodynamics, energy and environment, mechatronics and robotics, fluid mechanics, tribology, cybernetics, industrial engineering and structural analysis. The journal follows new trends and progress proven practice in the mechanical engineering and also in the closely related sciences as are electrical, civil and process engineering, medicine, microbiology, ecology, agriculture, transport systems, aviation, and others, thus creating a unique forum for interdisciplinary or multidisciplinary dialogue.