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A new algorithm for the detection of tool breakage in milling

✍ Scribed by Jose C. Principe; Taehwan Yoon

Publisher
Elsevier Science
Year
1991
Tongue
English
Weight
657 KB
Volume
31
Category
Article
ISSN
0890-6955

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✦ Synopsis

this paper a novel signal processing algorithm is presented for the detection of tool breakage using the displacement signal (RORPA). The algorithm extracts information from consecutive revolutions to decrease dependencies on runout conditions and idle noise, creating a much more robust signal for the automatic determination of tool breakage conditions. The algorithm is explained as well as the determination of dynamic thresholds. The thresholds are set using the information regarding the cutting conditions (mean displacement signal and its slope during transient milling). Examples with real data are also presented. A critique of the ouerall performance and future work incorporating information from x and y channels completes the discussion.

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In this paper the authors present a new approach for on-line monitoring of tool breakage in milling operations. It is based on recognizing changes in the pattern of the cutting force using a new kind of force sensing cutter holder which integrates a strain gauge and a transmitter. The regular period