Effect of process parameters on cutting speed of wire EDM process in machining HSLA steel with cryogenic treated brass wire

IF 2.8 3区工程技术 Q2 ENGINEERING, MANUFACTURING

Advances in Production Engineering & Management Pub Date : 2019-06-09 DOI:10.14743/APEM2019.2.317

W. Tahir, M. Jahanzaib, A. Raza

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引用次数: 11

Abstract

Wire electrical discharge machining (wire EDM), a most common nonconventional machine tool, is extensively employed to produce precise, delicate and intricate profiled shaped parts especially from hard to machine materials. The performance of wire EDM is mainly based on the electrical conductivity of both electrode wires and workpiece materials. The aim of research is to increase cutting speed (CS) of high strength low alloy (HSLA) hardened steel by determining main contributing input process parameters and effect of cold treatment on electrical conductivity of brass wire at –70 °C. Fractional factorial design is used to determine the relationship of CS with input process parameters includes; open voltage, pulse on time, pulse off time, wire tension, flushing pressure of deionized water and brass wires (cold treated – CT, and non-cold treated – NCT). Empirical model for CS is developed based on selected input process parameters and their contribution is analyzed through ANOVA technique. It is learned that pulse on time, pulse off time and wire electrode are the main contributing input process parameters that provide assistance to increase CS of wire EDM. In wire electrodes, cold treated brass wire is observed as a best alternative to enhance machining performance with an increase of electrical conductivity by 24.5 %. © 2019 CPE, University of Maribor. All rights reserved.

查看原文本刊更多论文

低温处理黄铜丝加工HSLA钢时工艺参数对线切割速度的影响

线材电火花加工(Wire EDM)是一种最常见的非常规机床，被广泛用于加工精密、精细和复杂的异形零件，特别是难加工材料。线材电火花加工的性能主要取决于电极线材和工件材料的导电性。研究的目的是通过确定主要贡献输入工艺参数和冷处理对黄铜丝电导率的影响，提高高强度低合金淬火钢的切削速度(CS)。采用分数因子设计确定CS与输入工艺参数的关系包括;开路电压、脉冲接通时间、脉冲关闭时间、导线张力、去离子水冲洗压力和黄铜导线(冷处理- CT和非冷处理- NCT)。基于选择的输入过程参数建立了CS的经验模型，并通过方差分析技术分析了它们的贡献。了解到脉冲接通时间、脉冲关闭时间和线材电极是有助于提高线材电火花加工CS的主要输入工艺参数。在线材电极中，经冷处理的黄铜丝是提高加工性能的最佳选择，电导率提高了24.5%。©2019马里博尔大学CPE。版权所有。

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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来源期刊

Advances in Production Engineering & Management ENGINEERING, MANUFACTURINGMATERIALS SCIENC-MATERIALS SCIENCE, MULTIDISCIPLINARY

CiteScore

5.90

自引率

22.20%

发文量

期刊介绍： Advances in Production Engineering & Management (APEM journal) is an interdisciplinary international academic journal published quarterly. The main goal of the APEM journal is to present original, high quality, theoretical and application-oriented research developments in all areas of production engineering and production management to a broad audience of academics and practitioners. In order to bridge the gap between theory and practice, applications based on advanced theory and case studies are particularly welcome. For theoretical papers, their originality and research contributions are the main factors in the evaluation process. General approaches, formalisms, algorithms or techniques should be illustrated with significant applications that demonstrate their applicability to real-world problems. Please note the APEM journal is not intended especially for studying problems in the finance, economics, business, and bank sectors even though the methodology in the paper is quality/project management oriented. Therefore, the papers should include a substantial level of engineering issues in the field of manufacturing engineering.