Department of Tool and Materials Engineering, King Mongkut’s University of Technology Thonburi, Bangkok, Thailand
Department of Tool and Materials Engineering, King Mongkut’s University of Technology Thonburi, Bangkok, Thailand
Copyright © 2013 Manisara Phiriyawirut, Sawanya Luamlam et al. This is
an open access article distributed under the Creative Commons Attribution
License, which permits unrestricted use, distribution, and reproduction in any
medium, provided the original work is properly cited.