scholarly journals Fabrication of micro electrode of carbide and micro hole machining characteristics of Ti-6Al-4V alloy by electrical discharge machining.

1999 ◽  
Vol 49 (1) ◽  
pp. 2-7 ◽  
Author(s):  
Han Ming CHOW ◽  
Ching Tang YANG ◽  
Biing Hwa YAN ◽  
Fuang Yuan HUANG
Keyword(s):  
Electrical Discharge ◽  
Electrical Discharge Machining ◽  
Micro Hole ◽  
Hole Machining ◽  
Machining Characteristics

scholarly journals Study on Fe-Based Metallic Glass Micro Hole Machining by Using Micro-EDM Combined with Electrophoretic Deposition Polishing

Processes ◽  
2022 ◽  
Vol 10 (1) ◽  
pp. 96
Author(s):  
Hai-Ping Tsui ◽  
Shih-Yu Hsu
Keyword(s):  
Metallic Glass ◽  
Electrical Discharge ◽  
Electrical Discharge Machining ◽  
High Hardness ◽  
Duty Factor ◽  
Machined Surface ◽  
Inner Surface ◽  
Micro Hole ◽  
Pulse On Time ◽  
Hole Machining

Fe-based metallic glass possesses high hardness and brittleness. It is a hard-to-cut metal material and difficult to machine by conventional methods. Although electrical discharge machining (EDM) has advantages in machining hard-to-cut metal materials, recast layer, pores, and micro cracks will form on the machined surface after machining. The study used a helical tool for the micro electrical discharge drilling (µ-EDD) process on Fe-based metallic glass. The influence of processing parameters, including the pulse on time, gap voltage, duty factor, and spindle rotational speed on the micro hole machining quality characteristics was investigated. The helical tool with SiC electrophoretic deposited (EPD) film was used to polish the inner surface of the electrical discharged micro hole. The findings show that the best micro hole accuracy, tool wear length, and inner surface were obtained at the spindle rotation speed of 1150 rpm, pulse on time of 5 μs, gap voltage of 30 V, and duty factor of 40%. The inner surface roughness can be reduced to 0.018 µm by using EPD tool. The inner surface was polished up to form a mirror surface.

Machining Feasibility of a New Developed Medium in Electrical Discharge Machining

2015 ◽  
Vol 656-657 ◽  
pp. 335-340 ◽  
Author(s):  
Fang Pin Chuang ◽  
Yan Cherng Lin ◽  
Hsin Min Lee ◽  
Han Ming Chow ◽  
A. Cheng Wang
Keyword(s):  
Electrical Discharge ◽  
Material Removal ◽  
Electrical Discharge Machining ◽  
Removal Rate ◽  
Environmentally Friendly ◽  
Industrial Applications ◽  
Deionized Water ◽  
Machining Parameters ◽  
Machining Performance ◽  
Machining Characteristics

The environment issue and green machining technique have been induced intensive attention in recent years. It is urgently need to develop a new kind dielectric to meet the requirements for industrial applications. The aim of this study is to develop a novel dielectric using gas media immersed in deionized water for electrical discharge machining (EDM). The developed machining medium for EDM can fulfill the environmentally friendly issue and satisfy the demand of high machining performance. The experiments were conducted by this developed medium to investigate the effects of machining parameters on machining characteristics in terms of material removal rate (MRR) and surface roughness. The developed EDM medium revealed the potential to obtain a stabilizing progress with excellent machining performance and environmentally friendly feature.

scholarly journals Research on the Real-time Wear of Wire Electrode During the Electrical Discharge Machining (EDM) of Precision Micro Hole

Procedia CIRP ◽  
2018 ◽  
Vol 68 ◽  
pp. 565-568
Author(s):  
Liu Jianyong ◽  
Guo jianmei ◽  
Ding Liantong ◽  
Cai Yanhua ◽  
Sun Dongjiang
Keyword(s):  
Real Time ◽  
Electrical Discharge ◽  
Electrical Discharge Machining ◽  
Wire Electrode ◽  
The Real ◽  
Micro Hole

Machining Characteristics of IN718 by EDM with Cooled Electrode and Vibration of the Workpiece

2020 ◽  
Vol 996 ◽  
pp. 131-136
Author(s):  
Yao Li ◽  
Cheng Cui ◽  
Bengang Lin ◽  
Li Li
Keyword(s):  
Electrical Discharge ◽  
Material Removal ◽  
Electrical Discharge Machining ◽  
Cryogenic Cooling ◽  
Tool Electrode ◽  
Machining Efficiency ◽  
Electrical Erosion ◽  
Machining Characteristics ◽  
Edm Process ◽  
Process Material

Inconel718 has been widely used in various fields for its good performance, but it is difficult to machine with traditional machining methods. Electrical discharge machining is an alternative competitive process to machine Nickel-based alloys by electrical erosion. In order to improve reduce the electrode loss and improve the machining efficiency, the horizontal ultrasonic vibration of the workpiece and the cryogenic cooling of the tool electrode were applied into the EDM process. Material removal efficiency, surface roughness, surface topography, and microhardness have been characterized.

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