A summary of methods applied to tool condition monitoring in drilling

Erkki Jantunen

    Research output: Contribution to journalArticleScientificpeer-review

    292 Citations (Scopus)


    This paper presents a summary of the monitoring methods, signal analysis and diagnostic techniques for tool wear and failure monitoring in drilling that have been tested and reported in the literature. The paper covers only indirect monitoring methods such as force, vibration and current measurements, i.e. direct monitoring methods based on dimensional measurement etc. are not included. Signal analysis techniques cover all the methods that have been used with indirect measurements including e.g. statistical parameters and Fast Fourier and Wavelet Transform. Only a limited number of automatic diagnostic tools have been developed for diagnosis of the condition of the tool in drilling. All of these rather diverse approaches that have been available are covered in this study. In the reported material there are both success stories and also those that have not been so successful. Only in a few of the papers have attempts been made to compare the chosen approach with other methods. Many of the papers only present one approach and unfortunately quite often the test material of the study is limited especially in what comes to the cutting process parameter variation, i.e. variation of cutting speed, feed rate, drill diameter and material and also workpiece material.
    Original languageEnglish
    Pages (from-to)997-1010
    JournalInternational Journal of Machine Tools and Manufacture
    Issue number9
    Publication statusPublished - 2002
    MoE publication typeA1 Journal article-refereed


    • tool wear
    • drilling
    • monitoring methods
    • signal analysis
    • diagnostic tools


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