放电机对P20+Ni钢表面改性Cu-W-Si绿色P/M复合电极的性能评价

Q3 Engineering

International Journal of Machining and Machinability of Materials Pub Date : 2021-05-20 DOI:10.1504/IJMMM.2021.10038116

J. L. Ramdatti, A. V. Gohil, V. Jain, K. Dave

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引用次数: 0

摘要

目前正在进行的实验研究是为了研究放电机床（EDM）的工艺参数与通过粉末冶金工艺（P/M）生产的复合电极（Cu-W-Si）之间的相关性。采用可旋转二阶中心复合设计（CCD），对P20+Ni模具钢进行了试验研究。采用响应面法建立了数学响应模型。研究了压实压力（Cp）、峰值电流（Ip）、脉冲接通时间（Ton）和占空比（τ）对MRR、TWR和SR的影响。方差分析用于研究参数的贡献百分比。使用称为“复合期望”的多目标优化技术获得了一组最佳工艺参数。反应的预测结果与实验结果相吻合。MRR和TWR的预测结果与实验结果吻合较好，误差分别在5.19%和-3.33%以内。

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Performance evaluation of Cu-W-Si green P/M composite electrode for surface modification of P20+Ni steel using electrical discharge machine

The current experimental research is being carried out to investigate the correlation between the process parameter of the electrical discharge machine (EDM) with the composite electrode (Cu-W-Si) produced through the process of powder metallurgy (P/M). The experiments on P20+Ni die steel were planned and performed using the rotatable second-order central composite design (CCD). The mathematical response model was obtained through response surface methodology. MRR, TWR and SR have been studied on the significance of compaction pressure (Cp), peak current (Ip), pulse-on time (Ton) and duty cycle (τ). ANOVA was conducted to investigate the contribution percentage of the parameters. The optimal set of process parameters was obtained using a multi-objective optimisation technique called 'composite desirability'. The predicted results of responses were confirmed with the experimental results. The reasonable agreements between predicted and experimental results of MRR and TWR have been obtained with error lying within 5.19% and −3.33% respectively.

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来源期刊

International Journal of Machining and Machinability of Materials Engineering-Industrial and Manufacturing Engineering

CiteScore

2.40

自引率

0.00%

发文量

期刊介绍： IJMMM is a refereed international publication in the field of machining and machinability of materials. Machining science and technology is an important subject with application in several industries. Parts manufactured by other processes often require further operations before the product is ready for application. Machining is the broad term used to describe removal of material from a workpiece, and covers chip formation operations - turning, milling, drilling and grinding, for example. Machining processes can be applied to work metallic and non metallic materials such as polymers, wood, ceramics, composites and special materials. Today, in modern manufacturing engineering, there has been strong renewed interest in high efficiency machining.