Work

On-machine fabrication of PCD and WC micro end mills using micro electro discharge machining

Year: 2014

Type: article

Abstract: Micro electro discharge machining (µ-EDM) process can be used to fabricate micro-milling tools of different geometries from tungsten carbide (WC) and polycrystalline diamond (PCD). The non-contact nature of EDM process makes micro tool fabrication a challenging task while offering the advantage of eliminating tool run out and clamping errors since micro tools fabricated on-machine. The tools are fabricated and used on the same spindle. In this study, a combination of block-EDM and wire electro discharge grinding (WEDG) techniques are used to fabricate micro end mills of different geometries. The influences of EDM process parameters on material erosion rate and surface roughness are examined. The performance of the fabricated micro-tools in ductile mode machining of fused silica has been investigated. It is found that micro end mills can be used to fabricate prototypes of microfluidics chips with acceptable quality.

Source: International Journal of Mechatronics and Manufacturing Systems

DOI: 10.1504/ijmms.2014.067166

Authors: Samad Nadimi Bavil Oliaei, Cem Özdemir, Yiğit Karpat

Institution: Bilkent University

Language: English

Topic: Advanced Machining and Optimization Techniques

Subfield: Industrial and Manufacturing Engineering

Field: Engineering

Domain: Physical Sciences

Open Access status: green

Funder: Türkiye Bilimsel ve Teknolojik Araştırma Kurumu

Award: Mikro kesici takım tasarım, üretim ve geliştirilmesi