Microfabrication and Precision Engineering

Microfabrication and Precision Engineering

Research and Development
Woodhead Publishing Reviews: Mechanical Engineering Series
2017, Pages 27-68
Microfabrication and Precision Engineering

2 - Machining scale: Workpiece grain size and surface integrity in micro end milling

https://doi.org/10.1016/B978-0-85709-485-8.00002-4Get rights and content

Abstract

This chapter presents the need of adapting the workpiece grain size (GS) and specifying properly the cutting parameters when milling metallic materials with crystallographic structure at distinct scales mainly at micromilling. The effects of fine and coarse GS as well as milling scale and main cutting parameters on workpiece surface integrity are described and explained, such as burr formation, size effect, specific cutting energy, chip formation mechanisms, surface and subsurface microhardness, workpiece finishing and microstructure strain near machined surface.

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