Mechanism study of micro-electrical discharge drilling method during micro-dimpling

被引：4

作者：

Jung, Sang Tae ^{[1
]}

Kurniawan, Rendi ^{[2
]}

Kumaran, S. Thirumalai ^{[3
]}

Yoon, In Jun ^{[2
]}

Ko, Tae Jo ^{[2
]}

机构：

[1] Pohang Univ Sci & Technol, Pohang Accelerator Lab, Pohang Si 37673, South Korea

[2] Yeungnam Univ, Dept Mech Engn, Precis Machining Lab, Gyongsan 38541, South Korea

[3] Kalasalingam Univ, Fac Mech Engn, Krishnankoil 626126, Tamil Nadu, India

来源：

JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY | 2020年 / 34卷 / 06期

基金：

新加坡国家研究基金会;

关键词：

Electrical discharge drilling; Microdimple; Cutting mechanism; Cutting force; TI-6AL-4V ALLOY; THEORETICAL-MODELS; MACHINING PROCESS; EDM; MACHINABILITY; PERFORMANCE; PREDICTION; PARAMETERS; REDUCTION; SURFACES;

D O I：

10.1007/s12206-020-0530-8

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

This paper reports the cutting mechanism in micro-electrical discharge drilling (uEDD) during a micro-dimpling process. A combination of fundamental micro-drilling and micro-electrical discharge machining (uEDM) is considered the main mechanism in the uEDD process. First, the cutting force in micro-drilling was modeled on a chisel and lip section based on a mechanistic model of the oblique cutting. Second, the model of the uEDM was also included based on uniform heat flux. Experiments of a micro-dimple were carried out on a titanium alloy (Ti6AI4V) to confirm the model validity. The validation confirms that the proposed cutting force model can be applied to predict the thrust force during micro-dimpling under uEDD. In addition, a micro-dimple morphology is also discussed.

引用

页码：2549 / 2559

页数：11

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