International Research Journal of Engineering and Technology (IRJET)
e-ISSN: 2395-0056
Volume: 09 Issue: 07 | July 2022
p-ISSN: 2395-0072
www.irjet.net
“EXPERIMENTAL INVESTIGATION OF MIG WELDING PARAMETERS FOR HARDNESS AND WELD-BEAD QUALITY” Samer Bahadur Yadav1,Aditya Veer Gautam2, Shivangi Dixit3 1Metch
Student Mechanical Engineering Department Rama University Kanpur U.P. Assistant Professor Mechanical Engineering Department Rama University Kanpur U.P. ---------------------------------------------------------------------***--------------------------------------------------------------------impact of various information parameters, for example, Abstract - In the modern era, in metal joining industries, 2,3
welding current(A), circular arc voltage(v) and root hole on the mechanical properties amid the Metal Inert Gas Welding (MIG) of gentle steel 1018 review. He utilized tagauchi improvement technique. As per his analysis arc voltage(V) has the more prominent effect on the hardness of the weldpool. through their examination found that the most astounding elasticity was accomplished at 180 A current, 35 V voltage and 4 mm root hole while the greatest hardness was seen at a welding current of 180 amp, circular segment voltage of 40 volt and root hole of 3 mm.
the requirement of the metal joining is to manufacture better surface hardness and good quality welds. The MIG welding machine is specialized in joining complex shapes with better surface quality as compare to other conventional welding processes. The present study on MIG welding machine performed on bright Mild Steel AISI1025 is conducted to found the affect of various factors like welding current(A), welding voltage(V) and weld speed(mm/sec) on hardness and surface quality. In this research I used to perform welding over various specimens and check their hardness using Rockwell hardness tester and surface quality using the SEM.
Yugang Miao et al.[2] Impact of Heat Input on Microstructural and Mechanical Properties of weld-Joints Made by Bypass-Current MIG Welding-Brazing of Magneseum Alloy to coated-Galvanized Steel.
1. INTRODUCTION The process of MIG welding works on the principle of developing a joint due to melting faying layers of the workpiece metal by utilizing the heat created by an arc of welding generated between work-piece specimen and a consumable electrode. To defendthe arc of welding and weld-pool shielding dormant gas (inert gas) is used which comes outside from the nozzle and make a cover in circular manner through out the arc produced and weld pool. Metal Inert Gas Idle Gas welding isn't considered as spotless as ‘Tungsten Inert Gas’ welding becase of the variety in adequacy of protecting gas to secure the weld pool.The arc produced in ‘MIG’ welding is relatively longer in length and has less stability as compared to TIG welding arc. The stability is different for ‘MIG and TIG’ arcs as in MIG, the arc is formed between ‘parent metal or work metal and the consumable electrode while in the case of TIG welding, arc is creaated between work metal and “non-consumable tungsten electrode”. Dependability of ‘arc’is diminished due to the proper utilization of the anode amid welding and consequently we accomplish less compelling protecting of the weld-pool for MIG welding than TIG welding. MIG welding procedure and TIG welding are like each other aside from that MIG uses a consequently bolstered consumable anode henceforth it offers high statement rate and beside these lines it is reasonable for first-class quality weld-bead joints that are required in mechanical creation
K. Abbasi[3] in their investigation found that when speed is taken as factor parameters, infiltration profundity increments with increment in speed upto an ideal estimation of 1450 mm/min, past that speed entrance begins diminishing. These specialists additionally found that when the warmth input is viewed as, the profundity of infiltration will increment with warm contribution till 109 J/min. Past this esteem, the entrance insight will diminish. Sanjay A.Patil et al. [4] amid the examination while finding the impact of welding current(A), welding voltage(V), welding on a definitive rigidity (UTS) of AISI 1030 mellow steel material amid welding process utilized Taguchi strategy for planning the investigations and investigation of difference was utilized for concentrate the welding qualities of material and upgrade the welding parameters. Chandresh N. Patel et al. [5] in the researchs of plan of trial strategies received the dark social examination (GRA) improvement system, where the info parameters for MIG welding chose were welding current, wire wideness and wire encourage rate and the execution measure was hardness. Another examination conveyed by. Ajit Hooda et al. [4], they built up a RSM demonstrate for foreseeing rigidity of idle gas metal MIG welded AISI 1040 medium carbon steel. Welding voltage(V), current(A), and wire speed(mm/sec) and gas stream rate were picked as the parameters of the machine. RSM procedure was connected
LITERATURE REVIEW Rakesh Kumaret al. [1]Investigation of mechanical properties in mild steel utilizing metal idle gas welding. The point of the present investigation is to demonstrate the
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