Characterization of Single-grit Grooving Process of Silicon Carbide Ceramic Using Multisensory Approach

For ductile regime machining of ceramic materials, it is necessary to analyse the material removal mechanism through single grit scratch test, since it aids to identify the microscopic interaction between the tool and the workpiece. Micro grooving process has been performed on Silicon Carbide cerami...

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Bibliographic Details
Published in:SILICON 2022-07, Vol.14 (10), p.5563-5575
Main Authors: Giridhar, D., Sakthivel, G., Vijayaraghavan, L., Krishnamurthy, R., Kumar, M. Senthil, Gangadhar, K., Kannan, T.
Format: Article
Language:English
Subjects:
Acoustic emission
Brittleness
Ceramics
Chemistry
Chemistry and Materials Science
Crack initiation
Cutting force
Diamond machining
Diamond tools
Ductile-brittle transition
Environmental Chemistry
Fracture mechanics
Grooving
Inorganic Chemistry
Lasers
Materials Science
Microcracks
Optical Devices
Optics
Original Paper
Parameter identification
Photonics
Plowing
Polymer Sciences
Scratch tests
Silicon carbide
Workpieces
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Summary:For ductile regime machining of ceramic materials, it is necessary to analyse the material removal mechanism through single grit scratch test, since it aids to identify the microscopic interaction between the tool and the workpiece. Micro grooving process has been performed on Silicon Carbide ceramics using a hinged scratch setup with diamond indenter as the tool. During the grooving process, Horizontal Cutting Force (HCF) and several Acoustic Emission (AE) parameters has been monitored for identifying the modes of material removal. The factors considered for the characterization of the grooving process are normal load, approach angle of the indenter, grooving speed and indenter radius. The study revealed that most of factors had significant effect on the responses of force and multiple responses of AE signal. Material removal mechanism such as plowing, ductile mode of material removal, Ductile to Brittle Transition (DBT) and microcracking or brittle mode of material removal were characterised using multisensory approach.
ISSN:1876-990X
1876-9918
DOI:10.1007/s12633-021-01331-w