The applicability of various indirect monitoring methods to tool condition monitoring in drilling

Erkki Jantunen

    Research output: Contribution to journalArticleScientificpeer-review

    Abstract

    Condition monitoring of cutting tools is important for a number of reasons. The unmanned use of flexible manufacturing systems is not possible without a reliable system for tool condition monitoring. Tool wear affects the surface quality of processed workpieces. Tools cannot be optimally used based on tool change policy which relies on time and which easily leads to too frequent change of tools from which it follows that valuable production time is lost and the tool cost becomes high. There is great variation in how well different monitoring methods work in tool condition monitoring. It is well known and accepted that cutting forces increase as a function of tool wear and consequently thrust force and torque are often monitored in drilling. Feed drive and spindle current actually also measure the same thing as feed force and torque transducers although through a longer measuring chain. Tool wear also changes the dynamics of cutting processes and consequently drift forces, vibration and sound have been used for tool wear monitoring. Cutting dynamics change also at higher frequencies i.e. ultra sonic vibrations and acoustic emission are also used for tool wear and failure monitoring. In the paper some physical reasons behind the use of various indirect monitoring methods of tool condition in drilling are presented and the benefits and drawbacks of each method are discussed.
    Original languageEnglish
    Pages (from-to)24 - 31
    Number of pages8
    JournalInternational Journal of COMADEM
    Volume7
    Issue number3
    Publication statusPublished - 2004
    MoE publication typeA1 Journal article-refereed

    Fingerprint

    Condition monitoring
    Drilling
    Monitoring
    Wear of materials
    Vibrations (mechanical)
    Torque
    Flexible manufacturing systems
    Tool wear
    Cutting tools
    Acoustic emissions
    Surface properties
    Transducers
    Acoustic waves

    Keywords

    • drill wear monitoring
    • drill failure monitoring
    • thrust force
    • torque
    • drift force
    • spindle power
    • vibration
    • sound
    • acoustic emission

    Cite this

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    title = "The applicability of various indirect monitoring methods to tool condition monitoring in drilling",
    abstract = "Condition monitoring of cutting tools is important for a number of reasons. The unmanned use of flexible manufacturing systems is not possible without a reliable system for tool condition monitoring. Tool wear affects the surface quality of processed workpieces. Tools cannot be optimally used based on tool change policy which relies on time and which easily leads to too frequent change of tools from which it follows that valuable production time is lost and the tool cost becomes high. There is great variation in how well different monitoring methods work in tool condition monitoring. It is well known and accepted that cutting forces increase as a function of tool wear and consequently thrust force and torque are often monitored in drilling. Feed drive and spindle current actually also measure the same thing as feed force and torque transducers although through a longer measuring chain. Tool wear also changes the dynamics of cutting processes and consequently drift forces, vibration and sound have been used for tool wear monitoring. Cutting dynamics change also at higher frequencies i.e. ultra sonic vibrations and acoustic emission are also used for tool wear and failure monitoring. In the paper some physical reasons behind the use of various indirect monitoring methods of tool condition in drilling are presented and the benefits and drawbacks of each method are discussed.",
    keywords = "drill wear monitoring, drill failure monitoring, thrust force, torque, drift force, spindle power, vibration, sound, acoustic emission",
    author = "Erkki Jantunen",
    year = "2004",
    language = "English",
    volume = "7",
    pages = "24 -- 31",
    journal = "International Journal of COMADEM",
    issn = "1363-7681",
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    }

    The applicability of various indirect monitoring methods to tool condition monitoring in drilling. / Jantunen, Erkki.

    In: International Journal of COMADEM, Vol. 7, No. 3, 2004, p. 24 - 31.

    Research output: Contribution to journalArticleScientificpeer-review

    TY - JOUR

    T1 - The applicability of various indirect monitoring methods to tool condition monitoring in drilling

    AU - Jantunen, Erkki

    PY - 2004

    Y1 - 2004

    N2 - Condition monitoring of cutting tools is important for a number of reasons. The unmanned use of flexible manufacturing systems is not possible without a reliable system for tool condition monitoring. Tool wear affects the surface quality of processed workpieces. Tools cannot be optimally used based on tool change policy which relies on time and which easily leads to too frequent change of tools from which it follows that valuable production time is lost and the tool cost becomes high. There is great variation in how well different monitoring methods work in tool condition monitoring. It is well known and accepted that cutting forces increase as a function of tool wear and consequently thrust force and torque are often monitored in drilling. Feed drive and spindle current actually also measure the same thing as feed force and torque transducers although through a longer measuring chain. Tool wear also changes the dynamics of cutting processes and consequently drift forces, vibration and sound have been used for tool wear monitoring. Cutting dynamics change also at higher frequencies i.e. ultra sonic vibrations and acoustic emission are also used for tool wear and failure monitoring. In the paper some physical reasons behind the use of various indirect monitoring methods of tool condition in drilling are presented and the benefits and drawbacks of each method are discussed.

    AB - Condition monitoring of cutting tools is important for a number of reasons. The unmanned use of flexible manufacturing systems is not possible without a reliable system for tool condition monitoring. Tool wear affects the surface quality of processed workpieces. Tools cannot be optimally used based on tool change policy which relies on time and which easily leads to too frequent change of tools from which it follows that valuable production time is lost and the tool cost becomes high. There is great variation in how well different monitoring methods work in tool condition monitoring. It is well known and accepted that cutting forces increase as a function of tool wear and consequently thrust force and torque are often monitored in drilling. Feed drive and spindle current actually also measure the same thing as feed force and torque transducers although through a longer measuring chain. Tool wear also changes the dynamics of cutting processes and consequently drift forces, vibration and sound have been used for tool wear monitoring. Cutting dynamics change also at higher frequencies i.e. ultra sonic vibrations and acoustic emission are also used for tool wear and failure monitoring. In the paper some physical reasons behind the use of various indirect monitoring methods of tool condition in drilling are presented and the benefits and drawbacks of each method are discussed.

    KW - drill wear monitoring

    KW - drill failure monitoring

    KW - thrust force

    KW - torque

    KW - drift force

    KW - spindle power

    KW - vibration

    KW - sound

    KW - acoustic emission

    M3 - Article

    VL - 7

    SP - 24

    EP - 31

    JO - International Journal of COMADEM

    JF - International Journal of COMADEM

    SN - 1363-7681

    IS - 3

    ER -