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Microtexture generation using controlled chatter machining in ultraprecision diamond turning
Published in American Society of Mechanical Engineers (ASME)
2015
Volume: 3
   
Issue: 2
Abstract
This paper describes a new method of microtexture generation in precision machining through self-excited vibrations of a diamond cutting tool. Conventionally, a cutting tool vibration or chatter is detrimental to the quality of the machined surface. In this study, an attempt is made to use the cutting tool's self-excited vibration during a cutting beneficially to generate microtextures. This approach is named as "controlled chatter machining (CCM)." Modal analysis is first performed to study the dynamic behavior of the cutting tool. Turning processes are then conducted by varying the tool holder length as a means to control vibration. The experimental results indicate that the self-excited diamond cutting tool can generate microtextures of various shapes, which depend on the cutting tool shank, cutting speed, feed, and cutting depth. The potential application of this proposed technique is to create microtextures in microchannels and microcavities to be used in mass and heat transfer applications. © 2014 by ASME.
About the journal
JournalJournal of Micro and Nano-Manufacturing
PublisherAmerican Society of Mechanical Engineers (ASME)
ISSN21660468
Open AccessNo
Concepts (15)
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    Cutting tools
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    Diamonds
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    Heat transfer
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    Modal analysis
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    Turning
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    Vibrations (mechanical)
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    Dynamic behaviors
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    MACHINED SURFACE
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    MASS AND HEAT TRANSFERS
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    PRECISION MACHINING
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    SELF-EXCITED VIBRATIONS
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    TOOL VIBRATIONS
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    TURNING PROCESS
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    ULTRA-PRECISION DIAMOND TURNINGS
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    Diamond cutting tools