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Proposal Number: 6917

Domain: Manufacturing

Theme(s): Additive Manufacturing Processes
Net Shape Manufacturing with Engineered Properties
Surface Modification and Finishing Processes

Supporting Central Government Agency: Department of Heavy Industries

Budget (Rs. Lakhs): 396.00

Principal Investigator: Prof. Ashish Kumar Nath

Principal Investigator Institute: Indian Institute of Technology, Kharagpur

Co-Investigators:
Prof. Subharnshu Roy ,Indian Institute of Technology, Kharagpur
Prof. Sudipto Ghosh ,Indian Institute of Technology, Kharagpur
Prof. Asimava Roy Choudhury ,Indian Institute of Technology, Kharagpur
Prof. C S KUmar ,Indian Institute of Technology, Kharagpur
Prof. Partha Saha ,Indian Institute of Technology, Kharagpur
Prof. Vikranth Racherla ,Indian Institute of Technology, Kharagpur
Prof. J. Datta Majumdar ,Indian Institute of Technology, Kharagpur
Dr S M Shariff ,ARCI, Hyderabad
Mr. Prakash Kattire ,Kalyani Centre for Technology & Innovation (BFL), Pune

Domain: Manufacturing

Project Title

Indigenous development of online process monitoring of laser surface hardening, cladding and additive manufacturing and studies on dynamic mechanical behavior of manufactured parts

Project Images

Image Caption:Online monitoring of laser cladding

Web Abstract

Repeatability and reproducibility of mechanical and metallurgical properties in laser surface hardening, cladding and additive manufacturing (LAM) process is a major issue; because each layer undergoes different thermal cycles. These properties are governed by the mode of solidification and the resulting microstructures which, in turn depends on the cooling rate and temperature gradient. Therefore, online thermal monitoring with feedback control to address this issue, optimum strategy for LAM, and refurbishing engineering parts with different hardfacing materials including functionally graded deposition will be developed. Control of microstructure in functionally graded deposition will be attempted by laser hybrid cold spray process. For large surface area coverage in laser processing of engineering parts with high throughput laser beam shaping will be augmented. Little explored mechanical behaviour of selective laser sintered components under dynamic loading will be investigated. Process modeling of microstructure and mechanical properties also will be done for industrial implementation.

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