Microstructural Investigation of Is513cr3 by Comparing with Plain Coolant, Ice, Ln2 Gas in Single Point Incremental Forming
M. D. Vijayakumar1, G. Gopalaramasubramaniyan2, V. Dhinakaran3

1Mr. M. D. Vijayakumar, Research Scholar, Department of Mechanical Engineering, St. Peter’s University, Chennai (Tamil Nadu), India.
2Dr. G. Gopalaramasubramaniyan, Professor, Department of Mechanical Engineering, Saveetha University, Chennai (Tamil Nadu), India.
3V. Dhinakaran, Department of Mechanical Engineering, Chennai Institute of Technology, Chennai (Tamil Nadu), India.
Manuscript received on 19 May 2019 | Revised Manuscript received on 05 June 2019 | Manuscript Published on 15 June 2019 | PP: 57-62 | Volume-8 Issue-1S2 May 2019 | Retrieval Number: A00120581S219/2019©BEIESP
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© The Authors. Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open access article under the CC-BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)

Abstract: Sheet metal incremental forming is an emerging manufacturing technology that allows formation of complex profiles by CNC contoured paths using a semi hemispherical tool. Single point incremental forming (SPIF) is a novel methodology of sheet metal forming operation which provides higher formability limits. This paper deals with the microstructural changes in the sheet metal which is subjected to die less forming operation. For the study of microstructure and the nature of deformation in detail, IS513Cr3 sheet is chosen as an experimental sheet metal sample. The evolution of microstructure after incremental sheet forming operation has been investigated for different samples of ice, ambient and LN2 conditions. The sheets are successfully deformed to required shape by sheet metal incremental forming operation and microstructural investigation is done by trinocular metallurgical microscope. This paper analyses the influence of material grain size that has an adverse effect on the material properties with respect to its application. The primary research scope is to fully analyze the microstructure of sheet metal influenced by various parameters and the results are compared. Further hardness is calculated in the sample with varying thickness at various locations and the results are discussed.
Keywords: Incremental Sheet Forming, CNC Paths, Formability Limits, Microstructure, Trinocular Metallurgical Microscope, Hardness.
Scope of the Article: Mechanical Maintenance