1 Centre for Precision Manufacturing, Department of Design, Manufacture and Engineering Management, University of Strathclyde, Glasgow G1 1XJ, UK. xichun.luo@strath.ac.uk.
2 Centre for Precision Manufacturing, Department of Design, Manufacture and Engineering Management, University of Strathclyde, Glasgow G1 1XJ, UK. wenlong.chang@strath.ac.uk.
3 Insitute of Mechanical, Process and Energy Engineering, School of Engineering and Physical Science, Heriot Wat University, Edinburgh EH14 4AS, UK. Jining.Sun@hw.ac.uk.
Micro-machining is an enabling technology for the manufacture of micro-products in which functional features, or at least one dimension, are in the order of μm. [...].