Earticle

초록

영어

Debris accumulation in the bottom and side gap leads to a poor machining stability and low machining efficiency of electrical discharge machining (EDM). Thus, an understanding on the mechanisms of debris distribution and exclusion of flow field in the discharge gap during EDM process should be investigated. However, these mechanisms have not been fully understood because debris distribution and exclusion process in the bottom and side gap is difficult to simulate and observe. This paper suggests a two-dimensional model of flow field with kerosene and debris phases for the bottom and side gap in ultrasonic assisted EDM process by computational fluid dynamics. The mechanism of debris distribution and exclusion in the discharge gap during ultrasonic vibration cycle was researched through the model. The effect of amplitude and frequency of ultrasonic vibration of the tool on debris distribution and exclusion during electrical discharge machining of whole array was investigated through numerical simulation. It is shown that ultrasonic vibration of the tool has significantly influence on the debris exclusion from discharge gap. In addition, the debris distribution and exclusion becomes strong with the increase of the amplitude and frequency of ultrasonic vibration of the tool.

목차

Abstract
 1. Introduction
 2. Mathematical Basis of the Simulation Model
 3. Geometric Model of Machining Gap
 4. Results and Discussion
  4.1. Influence of Amplitude of Ultrasonic Vibration on Debris Distribution and Exclusion
  4.2. Influence of Frequency of Ultrasonic Vibration on Debris Distribution and Exclusion
 5. Conclusions
 Acknowledgment
 References

키워드

저자

• Baocheng Xie [ School of Mechanical and Power Engineering Harbin University of Science and Technology Harbin, China ]
• Yanwen Zhang [ School of Mechanical and Power Engineering Harbin University of Science and Technology Harbin, China ]
• Jingwei Zhang [ School of Mechanical and Power Engineering Harbin University of Science and Technology Harbin, China ]
• Shengle Rend [ School of Mechanical and Power Engineering Harbin University of Science and Technology Harbin, China ]

참고문헌

발행기관

간행물

표지보기 관심저널 등록

• 간행물명

  International Journal of Hybrid Information Technology

• 간기

  격월간

• pISSN

  1738-9968

• 수록기간

  2008~2016

• 십진분류

  KDC 505 DDC 605