Comparative Thermal Analysis of TiN-Coated and Uncoated Carbide Cutting Tools

Comparative Thermal Analysis of TiN-Coated and Uncoated Carbide Cutting Tools | 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 Comparative Thermal Analysis of TiN-Coated and Uncoated Carbide Cutting Tools Vitor H. M. Oliveira, Sidney Silveira Ribeiro, Jose Ricardo F. de Oliveira, and 3 more This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-7849709/v1 This work is licensed under a CC BY 4.0 License Status: Published Journal Publication published 09 Feb, 2026 Read the published version in The International Journal of Advanced Manufacturing Technology → Version 1 posted 5 You are reading this latest preprint version Abstract This study investigates the thermal influence of titanium nitride (TiN) coatings on tungsten carbide-cobalt (WC-Co) cutting tools during orthogonal machining of gray cast iron. Although such coatings are widely employed for mechanical protection of the substrate and to enhance the tribological performance of the cutting process by reducing friction and improving tool life, their thermal behavior during operation remains insufficiently understood. Considering that TiN coatings are extremely thin (typically \((1-10 \mu)\) m) in comparison to the substrate thickness ( \((5-10)\) mm), a key question arises: do these coatings function as thermal barriers, or are the observed reductions in cutting zone temperature solely attributed to their mechanical behaviors? To address this, thermal properties of coated and uncoated cemented carbide tools were characterized. Experimental measurements were performed during orthogonal cutting of gray cast iron. Heat flux and tool-chip interface temperatures were estimated using inverse heat conduction methods. The results showed that uncoated tools exhibited significantly higher interface temperatures, with an average increase of approximately \((300^0C)\) compared to coated tools. The findings suggest that the mechanical benefits of the TiN coating are primarily responsible for the reduction in interface temperature, while its thermal barrier effect is comparatively limited. Thermal barrier coating Interface chip-tool temperature Interface heating generate Full Text Cite Share Download PDF Status: Published Journal Publication published 09 Feb, 2026 Read the published version in The International Journal of Advanced Manufacturing Technology → Version 1 posted Editorial decision: Major Revisions Needed 21 Dec, 2025 Reviewers agreed at journal 18 Dec, 2025 Reviewers invited by journal 28 Oct, 2025 Editor assigned by journal 28 Oct, 2025 First submitted to journal 24 Oct, 2025 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-7849709","acceptedTermsAndConditions":true,"allowDirectSubmit":false,"archivedVersions":[],"articleType":"Research Article","associatedPublications":[],"authors":[{"id":536152142,"identity":"18d9fc55-44bc-4d8d-ae52-680e6211b233","order_by":0,"name":"Vitor H. M. Oliveira","email":"","orcid":"","institution":"","correspondingAuthor":false,"prefix":"","firstName":"Vitor","middleName":"H. 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Although such coatings are widely employed for mechanical protection of the substrate and to enhance the tribological performance of the cutting process by reducing friction and improving tool life, their thermal behavior during operation remains insufficiently understood. Considering that TiN coatings are extremely thin (typically \u003cspan class=\"InlineEquation\"\u003e\u003cspan class=\"mathinline\"\u003e\\((1-10 \\mu)\\)\u003c/span\u003e\u003c/span\u003em) in comparison to the substrate thickness (\u003cspan class=\"InlineEquation\"\u003e\u003cspan class=\"mathinline\"\u003e\\((5-10)\\)\u003c/span\u003e\u003c/span\u003e mm), a key question arises: do these coatings function as thermal barriers, or are the observed reductions in cutting zone temperature solely attributed to their mechanical behaviors? To address this, thermal properties of coated and uncoated cemented carbide tools were characterized. Experimental measurements were performed during orthogonal cutting of gray cast iron. Heat flux and tool-chip interface temperatures were estimated using inverse heat conduction methods. The results showed that uncoated tools exhibited significantly higher interface temperatures, with an average increase of approximately \u003cspan class=\"InlineEquation\"\u003e\u003cspan class=\"mathinline\"\u003e\\((300^0C)\\)\u003c/span\u003e\u003c/span\u003e compared to coated tools. The findings suggest that the mechanical benefits of the TiN coating are primarily responsible for the reduction in interface temperature, while its thermal barrier effect is comparatively limited.\u003c/p\u003e","manuscriptTitle":"Comparative Thermal Analysis of TiN-Coated and Uncoated Carbide Cutting Tools","msid":"","msnumber":"","nonDraftVersions":[{"code":1,"date":"2025-11-06 09:35:55","doi":"10.21203/rs.3.rs-7849709/v1","editorialEvents":[{"type":"communityComments","content":0},{"type":"decision","content":"Major Revisions Needed","date":"2025-12-21T08:35:33+00:00","index":"","fulltext":""},{"type":"reviewerAgreed","content":"","date":"2025-12-18T10:11:31+00:00","index":0,"fulltext":""},{"type":"reviewersInvited","content":"","date":"2025-10-28T09:31:04+00:00","index":"","fulltext":""},{"type":"editorAssigned","content":"","date":"2025-10-28T05:43:41+00:00","index":"","fulltext":""},{"type":"submitted","content":"The International Journal of Advanced Manufacturing Technology","date":"2025-10-24T06:45:28+00:00","index":"","fulltext":""}],"status":"published","journal":{"display":true,"email":"[email protected]","identity":"the-international-journal-of-advanced-manufacturing-technology","isNatureJournal":false,"hasQc":true,"allowDirectSubmit":false,"externalIdentity":"jamt","sideBox":"Learn more about [The International Journal of Advanced Manufacturing Technology](https://www.springer.com/journal/170)","snPcode":"170","submissionUrl":"https://submission.nature.com/new-submission/170/3","title":"The International Journal of Advanced Manufacturing Technology","twitterHandle":"","acdcEnabled":true,"dfaEnabled":true,"editorialSystem":"em","reportingPortfolio":"Springer Hybrid","inReviewEnabled":true,"inReviewRevisionsEnabled":false}}],"origin":"","ownerIdentity":"c5453623-156d-4686-9746-270c6c9d2064","owner":[],"postedDate":"November 6th, 2025","published":true,"recentEditorialEvents":[],"rejectedJournal":[],"revision":"","amendment":"","status":"published-in-journal","subjectAreas":[],"tags":[],"updatedAt":"2026-02-16T16:08:14+00:00","versionOfRecord":{"articleIdentity":"rs-7849709","link":"https://doi.org/10.1007/s00170-026-17558-z","journal":{"identity":"the-international-journal-of-advanced-manufacturing-technology","isVorOnly":false,"title":"The International Journal of Advanced Manufacturing Technology"},"publishedOn":"2026-02-09 15:58:19","publishedOnDateReadable":"February 9th, 2026"},"versionCreatedAt":"2025-11-06 09:35:55","video":"","vorDoi":"10.1007/s00170-026-17558-z","vorDoiUrl":"https://doi.org/10.1007/s00170-026-17558-z","workflowStages":[]},"version":"v1","identity":"rs-7849709","journalConfig":"researchsquare"},"__N_SSP":true},"page":"/article/[identity]/[[...version]]","query":{"redirect":"/article/rs-7849709","identity":"rs-7849709","version":["v1"]},"buildId":"8U1c8b4HqxoKbykW_rLl7","isFallback":false,"isExperimentalCompile":false,"dynamicIds":[84888],"gssp":true,"scriptLoader":[]}