Please use this identifier to cite or link to this item: http://hdl.handle.net/10603/302148
Title: Development Of Mechanical Vibration System To Influence The Metallurgical And Mechanical Properties Of Mild Steel 1018 Welded Joints
Researcher: Bade, V.S.
Guide(s): RAO, P SRINIVASA and RAO, P GOVINDA
Keywords: Engineering
Engineering and Technology
Engineering Mechanical
Vibration Welding, Mechanical Properties, Weld-pool refinement, GRNN, Optimization.
University: Centurion University of Technology and Management
Completed Date: 2020
Abstract: Welding is an established technique for fabricating a permanent joint with newlineintense heat input. Because of this extreme heat input during the process of welding, newlinethe weld region is subjected to severe non-uniform thermal cycles. These non-uniform newlinethermal cycles induce complex thermal stresses and strains, which cause the newlinedevelopment of inhomogeneous plastic deformation. Due to this, structure end life is newlinereduced i.e., Weld-joints mechanical properties are diminishing. To enhance the newlinewelded joint mechanical properties, vibration-assisted welding or conditioning the newlineweld zone with vibrations has been proposed. The mechanical properties of the newlinewelded joints are proven to be improved by subjecting mechanical vibrations to the newlineweld specimens. Therefore, vibratory shielded metal arc welding has been proposed newlinein the present study to improve the mechanical properties of the weldment. So, the newlineexperimental research followed out to review the influence of vibrations on the newlinemetallurgical and mechanical behaviour of mild steel 1018 weldments. newlineIn this current work with a new approach, a vibratory setup is developed and newlineconnected to the welding equipment for imparting vibrations mechanically during the newlinewelding process through specimens and electrode. The developed vibratory set-up newlinecreates the necessary frequencies with acceleration and amplitude in terms of newlinevoltages. The weld joints were prepared by regulating the input variables like voltage newlineof vibro-motor and voltage of DC motor (Electrode vibration) at a constant period of newlinevibrations. And the other welding process constraints like weld travel speed, welding newlinecurrent were set aside constant. Welded joints metallurgical analysis reveals that filler newlineis uniformly distributed in the case of vibratory welded specimens. Apart from the newlineuniform filler distribution, a refined microstructure is achieved in the vibratory newlinewelded specimens. Subsequently, the enhancement in impact strength, flexural newlinestrength, hardness, and tensile strength (UTS and YTS) of the vibratory conditioned newlineweld join
Pagination: A4 SIZE,PDF,
URI: http://hdl.handle.net/10603/302148
Appears in Departments:Mechanical Enggineering

Files in This Item:
File Description SizeFormat 
80_recommendation.pdfAttached File1.14 MBAdobe PDFView/Open
certificate.pdf419.59 kBAdobe PDFView/Open
chapter 1.pdf1.56 MBAdobe PDFView/Open
chapter 2.pdf646.94 kBAdobe PDFView/Open
chapter 3.pdf3.61 MBAdobe PDFView/Open
chapter 4.pdf12.38 MBAdobe PDFView/Open
chapter 5.pdf6.22 MBAdobe PDFView/Open
chapter 6.pdf599.55 kBAdobe PDFView/Open
priliminary pages.pdf575 kBAdobe PDFView/Open
references.pdf899.42 kBAdobe PDFView/Open
title.pdf548.7 kBAdobe PDFView/Open


Items in Shodhganga are protected by copyright, with all rights reserved, unless otherwise indicated.

Altmetric Badge: