Micromachining and Burr Formation for Precision Mechanical Components

Author(s): Jeffrey Hartnett, Sangkee Min, and David Dornfeld


Publication: Proceedings of the 1st MIRAI Joint Workshop on Micro Fabrication


Citation: Proceedings of the 1st MIRAI Joint Workshop on Micro Fabrication, 7th Japan-Korea-US Joint Symposium on Micro Fabrication, UC Berkeley, CA, June 28-29, 2007.

An understanding of burr formation and edge defects is critical to efficient production of machined features in precision components. Analytical models of burr formation and edge effects including the tool/workpiece interaction and material influences are necessary for building databases describing cutting conditions for optimal edge quality, and design rules for burr and edge defect prevention. This paper reviews recent research work done on the fundamentals of burr formation in micro-milling of microfluidic devices using the Mori Seiki NV1500 DCG Vertical Milling Machine as part of the MTTRF machine loan program at the University of California at Berkeley. Specific applications of micromachining and burr formation test results for of micro-scale components are presented and discussed.