Research on Cutting Mechanism and Cutting Force Theoretical Model Based on Indentation Fracture Mechanics in Turning Lithium Disilicate Glass

Research on Cutting Mechanism and Cutting Force Theoretical Model Based on Indentation Fracture Mechanics in Turning Lithium Disilicate Glass | Research Square window.SnipcartSettings = { analytics: { enabled: false } }; (function() { var accessVector = localStorage.getItem('access_vector') || ''; window.dataLayer = window.dataLayer || []; if (accessVector) { window.dataLayer.push({ user: { profile: { profileInfo: { snid: accessVector } } } }); } })(); (function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src='https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);})(window,document,'script','dataLayer','GTM-K279D39R'); Browse Preprints In Review Journals COVID-19 Preprints AJE Video Bytes Research Tools Research Promotion AJE Professional Editing AJE Rubriq About Preprint Platform In Review Editorial Policies Our Team Advisory Board Help Center Sign In Submit a Preprint Cite Share Download PDF Research Article Research on Cutting Mechanism and Cutting Force Theoretical Model Based on Indentation Fracture Mechanics in Turning Lithium Disilicate Glass Lianjie Ma, Kunjie Yan, Shuhuai Wang, Hongshuang Li, Jing Jia This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-557493/v1 This work is licensed under a CC BY 4.0 License Status: Under Revision Version 1 posted 5 You are reading this latest preprint version Abstract Based on the theory of energy transfer, this study analyzes the fracture mechanism of machinable ceramics, and establishes the machinable ceramic tool-workpiece-chip coupling cutting force model. Research on the brittleness removal of hard and brittle materials by indentation test. The pre-existing defects on the surface of the workpiece are subjected to tensile stress. With continuous loading on a certain point on the surface of the workpiece, the cracks begin to sprout and expand; when the critical load is loaded, the cracks become unstable; with the load continues, the conical cracks expand in an unstable state. The Hertz crack system is obtained at the end of the indentation. The crack system model is established based on indentation fracture mechanics. According to Griffith energy balance theory, different types of energy models of the crack system are established. The theoretical model of cutting force is established according to the principle of energy conservation, the tool input is equal to the energy change between crack systems. The results of turning experiments show that the main cutting force increases with the increase of the radius of the tool nose, and decreases with the increase of the tool rake angle. The calculated values of the theoretical model of cutting force in turning of hard and brittle materials are basically consistent with the experimental values. Industrial Engineering Mechanical Engineering Theoretical model of cutting force Crack system Cutter parameters Energy conservation principle Lithium disilicate glass Figures Figure 1 Figure 2 Figure 3 Figure 4 Figure 5 Figure 6 Figure 7 Figure 8 Figure 9 Full Text Due to technical limitations, full-text HTML conversion of this manuscript could not be completed. However, the manuscript can be downloaded and accessed as a PDF. Cite Share Download PDF Status: Under Revision Version 1 posted Editorial decision: Major Revisions Needed 02 Aug, 2021 Reviews received at journal 30 May, 2021 Reviewers invited by journal 30 May, 2021 Editor assigned by journal 30 May, 2021 First submitted to journal 24 May, 2021 You are reading this latest preprint version Research Square lets you share your work early, gain feedback from the community, and start making changes to your manuscript prior to peer review in a journal. As a division of Research Square Company, we’re committed to making research communication faster, fairer, and more useful. We do this by developing innovative software and high quality services for the global research community. Our growing team is made up of researchers and industry professionals working together to solve the most critical problems facing scientific publishing. Also discoverable on Platform About Our Team In Review Editorial Policies Advisory Board Help Center Resources Author Services Accessibility API Access RSS feed Manage Cookie Preferences © Research Square 2026 | ISSN 2693-5015 (online) Privacy Policy Terms of Service Do Not Sell My Personal Information {"props":{"pageProps":{"initialData":{"identity":"rs-557493","acceptedTermsAndConditions":true,"allowDirectSubmit":false,"archivedVersions":[],"articleType":"Research Article","associatedPublications":[],"authors":[{"id":30358019,"identity":"bb935118-e3e8-41c5-9a78-08ff8737c51f","order_by":0,"name":"Lianjie Ma","email":"data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAZAAAAAyAQMAAABI0h/eAAAABlBMVEX///8AAABVwtN+AAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAy0lEQVRIiWNgGAWjYDACdobEBwwMEjJQLjMRWpgZkg2AWnhI0sImAaRI0KLbzPCs6kaNBQ+DdPMxCYYK68QG9rMH8GoxO8yQdjvnGNBhMsfSJBjOpCc28OQlEKGFDahFIsdMgrHtcGKDBI8BQS3FOf9AWvK/STD+I1ILc24b2BY2CcYG4rQkS+f2SfCwSaQZWyQcSzdu48khoOV4T+LnnG91cvwSyQ9vfKixlu1nP4NfCzBGEsAUG4hIgDHwA/YDhNWMglEwCkbByAYAgZE4vjrzVjUAAAAASUVORK5CYII=","orcid":"https://orcid.org/0000-0003-4952-0341","institution":"Northeastern University - 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