Generation of high aspect ratio micro holes by a hybrid micromachining process

Murali M. Sundaram, Sridevi Billa, Kamlakar P. Rajurkar

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Scopus citations

Abstract

Drilling a micro hole with an aspect ratio above 10 is a challenging task for any micromachining process. In micro electro discharge machining (micro EDM), a proven metallic micromachining process, this is due to the problems associated with debris removal. In such cases, where the capabilities of existing macro machining methods are constantly being challenged, innovative micro manufacturing approaches are required to make progress. Hybrid micromachining is one such approach in which the synergy of constituent processes is exploited to achieve desired results. In this paper, the results of ultrasonic vibration assisted micro electro discharge machining process are presented. This hybrid process is capable of deep hole drilling with aspect ratio of 20 in austenitic stainless steel by overcoming the limitations in the debris removal faced in the typical micro EDM process. Other benefits of ultrasonic vibration are the savings in machining time, and less tool wear. It is also noticed that the ultrasonic vibration causes some shape distortion and produces rougher machined surface.

Original languageEnglish (US)
Title of host publicationAmerican Society of Mechanical Engineers
Pages243-248
Number of pages6
DOIs
StatePublished - 2007
Event2007 ASME International Conference on Manufacturing Science and Engineering - Atlanta, GA, United States
Duration: Jan 15 2007Oct 18 2007

Publication series

NameProceedings of the ASME International Manufacturing Science and Engineering Conference 2007, MSEC2007

Conference

Conference2007 ASME International Conference on Manufacturing Science and Engineering
CountryUnited States
CityAtlanta, GA
Period1/15/0710/18/07

ASJC Scopus subject areas

  • Industrial and Manufacturing Engineering

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  • Cite this

    Sundaram, M. M., Billa, S., & Rajurkar, K. P. (2007). Generation of high aspect ratio micro holes by a hybrid micromachining process. In American Society of Mechanical Engineers (pp. 243-248). (Proceedings of the ASME International Manufacturing Science and Engineering Conference 2007, MSEC2007). https://doi.org/10.1115/MSEC2007-31078