Cost Index Model for the Process Performance Optimization of Micro-EDM Drilling on Tungsten Carbide

被引：12

作者：

D'Urso, Gianluca ^{[1
]}

Giardini, Claudio ^{[1
]}

Quarto, Mariangela ^{[1
]}

Maccarini, Giancarlo ^{[1
]}

机构：

[1] Univ Bergamo, Dept Management Informat & Prod Engn DIGIP, I-24044 Dalmine, BG, Italy

来源：

MICROMACHINES | 2017年 / 8卷 / 08期

关键词：

micro-electrical discharge machining (micro-EDM); tungsten carbide; micro-drilling; process performance; model; ELECTRODISCHARGE MACHINING PROCESS; MATERIAL REMOVAL RATE; NEURAL-NETWORK;

D O I：

10.3390/mi8080251

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

The present work deals with the execution of through micro-holes on tungsten carbide plates using a micro-electrical discharge machining (micro-EDM) machine. The experiments were carried out by varying peak current, voltage and frequency in order to achieve suitable technology windows. Tubular electrodes, made of two different materials (tungsten carbide and brass), were used. The investigation focuses on the influence of variable process parameters on the process performances and their optimization. The performance indicators taken into account were Material Removal Rate (MRR) and Tool Wear Ratio (TWR). A general model based on a cost index was defined for the process performances optimization and the optimal conditions were identified through the minimization of the objective function.

引用

页数：11

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