A Study of Added SiC Powder in Kerosene for the Blind Square Hole Machining of CFRP Using Electrical Discharge Machining

Silicon ◽  
2021 ◽  
Author(s):  
PV Arul Kumar ◽  
J. Vivek ◽  
N. Senniangiri ◽  
S. Nagarajan ◽  
K. Chandrasekaran
Keyword(s):  
Electrical Discharge ◽  
Electrical Discharge Machining ◽  
Hole Machining ◽  
Square Hole

Tangent Hole Machined by Micro Electrical Discharge Machining

2009 ◽  
Vol 419-420 ◽  
pp. 821-824
Author(s):  
Mao Sheng Li ◽  
Guan Xin Chi ◽  
Zhen Long Wang ◽  
Yu Kui Wang
Keyword(s):  
Power Supply ◽  
Electrical Discharge ◽  
Electrical Discharge Machining ◽  
Pulse Power ◽  
Working Fluid ◽  
Machining Efficiency ◽  
Pulse Power Supply ◽  
Relative Wear ◽  
Micro Electrical Discharge Machining ◽  
Hole Machining

Based on a self-developed pulse power supply, effects of working fluid to machining efficiency and relative wear of electrode are studied. tangent-hole machining experiments are designed and carried out. Tangent holes with 0.75mm and 0.56mm diameters on some nozzles are obtained.

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.

scholarly journals Development of an Electrode Motion Control Device for Curved Hole Electrical Discharge Machining

2008 ◽  
Vol 2 (6) ◽  
pp. 447-456 ◽  
Author(s):  
Tohru Ishida ◽  
◽  
Yasuhito Miyake ◽  
Koji Teramoto ◽  
Yoshimi Takeuchi ◽  
...  
Keyword(s):  
Motion Control ◽  
Electrical Discharge ◽  
Electrical Discharge Machining ◽  
Water Channels ◽  
Control Device ◽  
Experimental Results ◽  
Curved Channels ◽  
Hydraulic Equipment ◽  
Curved Hole ◽  
Hole Machining

This study deals with the development of a new curved hole machining device which has been improved to diversify the shapes of the curved holes it produces. Holes are generally bored with drills, so they are straight. As a result, mechanical designers are limited to designing products with straight holes in them, even though straight holes may not be optimal for the products they design. This often becomes a problem when designing the water channels in molds or the pipelines used in pneumatic components or hydraulic equipment, since curved channels or curved pipelines would be optimal yet it is impossible for drills to produce them. To solve this problem, a method of machining curved holes is required, so the authors have developed devices which can produce them. Previous to this study, the most recent device was mechanically controlled, and the curved holes it produced were limited in shape. The device has been improved, and the latest device is controlled via software. Experimental results indicate that the improved device has much higher controllability of the shape of the curved holes it produces.

Tribocorrosion Properties of Titanium Alloy Modified By Electrical Discharge Machining

2017 ◽  
Author(s):  
Bruna Michelle de Freitas ◽  
Carlos augusto Henning Laurindo ◽  
Paulo Soares ◽  
Leticia Bemben
Keyword(s):  
Titanium Alloy ◽  
Electrical Discharge ◽  
Electrical Discharge Machining
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