Milling cutter breakage detection by the discrete wavelet transform

The paper describes the use of cutting force to detect milling cutter break age based on the discrete wavelet transform. The discrete wavelet transform performs a multi-level signal decomposition of the cutting force so that c utter breakage features can be extracted. Milling cutter breakage can then be detected from the cutting force with or without the cutter breakage feat ures. Experimental results have indicated that milling cutter breakage can be successfully detected even under different cutting conditions. (C) 1998 Elsevier Science Ltd. All rights reserved.