|Author||Bal, Kalinga Simant|
|Researcher||Bal, Kalinga Simant|
|Educational Degree||Master of Technology (M.Tech.)|
|Subject Domain (in DDC)||Technology ♦ Manufacturing|
|Subject Keyword||Production Engineering|
|Abstract||In the present investigation, PVD coated carbide inserts & uncoated carbide inserts were subjected to deep cryogenic treatment (-190°C) and machining studies were conducted on Stainless Steel using both untreated and deep cryogenic treated carbide cutting tool inserts. Micro-structural study, elemental characterization and crystallographic orientation were studied with the help of Scanning Electron Microscopy (SEM), Energy Dispersive X-ray Spectroscopy (EDS) and X-ray Diffraction (XRD) respectively. Micro-hardness of the same specimens was evaluated using Vickers micro-hardness. The results indicated that cryo-treatment resulted information of hard and wear resistant η-phase carbides along with the improvement of tungsten carbide distribution in cobalt binder phase in metal matrix. The turning tests were conducted at three different cutting speeds (50, 70, and 90 m/min), feed rate (0.04, 0.05, 0.06 mm/rev) and depth of cut (0.1, 0.2, 0.3 mm). The influence of cryo-treatment on carbide inserts were evaluated in terms of flank wear of the cutting tool inserts, surface finish of the machined work-pieces and cutting forces. The results showed that cryogenic treatment significantly improved the average flank wear. The surface finish produced on machining the work-piece is better with the deep cryogenic treated carbide tools than when compared with the untreated carbide tools. Cutting force for cryo-treated inserts appeared to be less than non- cryo-treated insert. Tool life test was also conducted and results favored cryo-treated inserts. Also, a comparative study was done between carbide inserts cryo-treated at different conditions. FEA analysis using ABAQUS software was carried out to investigate the stress and temperature distribution at tool-workpiece interface. Keywords- Cryo-treatment (CT), Carbide inserts, Surface roughness, Cutting force, Flank wear|
|Education Level||UG and PG|
|Learning Resource Type||Thesis|
Ministry of Human Resource Development (MHRD) under its National Mission on Education through Information and Communication Technology (NMEICT) has initiated the National Digital Library of India (NDL India) pilot project to develop a framework of virtual repository of learning resources with a single-window search facility. Filtered and federated searching is employed to facilitate focused searching so that learners can find out the right resource with least effort and in minimum time. NDL India is designed to hold content of any language and provides interface support for leading Indian languages. It is being arranged to provide support for all academic levels including researchers and life-long learners, all disciplines, all popular form of access devices and differently-abled learners. It is being developed to help students to prepare for entrance and competitive examination, to enable people to learn and prepare from best practices from all over the world and to facilitate researchers to perform inter-linked exploration from multiple sources. The pilot project is devising a framework that is being scaled up with respect to content volume and diversity to serve all levels and disciplines of learners. It is being developed at Indian Institute of Technology Kharagpur.
NDL India is a conglomeration of freely available or institutionally contributed or donated or publisher managed contents. Almost all these contents are hosted and accessed from respective sources. The responsibility for authenticity, relevance, completeness, accuracy, reliability and suitability of these contents rests with respective organization from where the contents are sourced and NDL India has no responsibility or liability for these. Every effort is made to keep the NDL India portal up and running smoothly. However, NDL India takes no responsibility for, and will not be liable for, the portal being unavailable due to technical issues or otherwise.
Ministry of Human Resource Development (MHRD), through its National Mission on Education through Information and Communication Technology (NMEICT), has sponsored and funded the National Digital Library of India (NDL India) pilot project.
For any issue or feedback, please write to email@example.com
COVID-19 Lockdown not to affect your study. Study through National Digital Library of India (NDLI).