controllable input welding parameters such as wire feed wire, welding voltage, nozzle-to-plate distance, welding speed, gas flow rate[8]. And it was found that among main input welding parameters the effect of wire feed rate is significant. Increasing the wire feed rate and arc voltage increases the weld dilution where as increasing the nozzle to plate distance the welding speed results in decreases weld dilution and gas flow rate did not affect the weld dilution. M.Suban,J.Tusek: This research establish the influence of the shielding medium used on quantity of the filler material melted. A comparison was made between the melting rate in welding with a solid wire and a cored wire, respectively[9]. The melting rate in welding with the cored wire is higher than in welding with the solid wire the condition being same. It is quite interesting that at high current melting rates are higher in CO2. Pawankumar, Dr.B.K.Roy:- In this study it was worked carried out on plate welds AISI 304 & Low Carbon Steel plates using gas arc welding (GMAW) process. Taguchi method is used to formulate the experimental design. Design of experiments using orthogonal array is employed to develop the welds .The input process variables considered here include welding current,welding voltage & gas flow rate. A total no of 9 experimental runs were conducted using an L9 orthogonal array the ideal combination of controllable factor level was determined for the hardness to calculate the signal-to noise ratio After collecting the data signal-to-noise ratios were calculated as used in order to obtain optimum levels for every input parameter. The Nominal-the-better quality characteristic is considered in the hardness prediction Problem Formulation MIG is currently one of the most popular welding methods, especially in industrial environments. It is used extensively by the sheet metal industry and by extension, the automobile
controllable input welding parameters such as wire feed wire, welding voltage, nozzle-to-plate distance, welding speed, gas flow rate[8]. And it was found that among main input welding parameters the effect of wire feed rate is significant. Increasing the wire feed rate and arc voltage increases the weld dilution where as increasing the nozzle to plate distance the welding speed results in decreases weld dilution and gas flow rate did not affect the weld dilution. M.Suban,J.Tusek: This research establish the influence of the shielding medium used on quantity of the filler material melted. A comparison was made between the melting rate in welding with a solid wire and a cored wire, respectively[9]. The melting rate in welding with the cored wire is higher than in welding with the solid wire the condition being same. It is quite interesting that at high current melting rates are higher in CO2. Pawankumar, Dr.B.K.Roy:- In this study it was worked carried out on plate welds AISI 304 & Low Carbon Steel plates using gas arc welding (GMAW) process. Taguchi method is used to formulate the experimental design. Design of experiments using orthogonal array is employed to develop the welds .The input process variables considered here include welding current,welding voltage & gas flow rate. A total no of 9 experimental runs were conducted using an L9 orthogonal array the ideal combination of controllable factor level was determined for the hardness to calculate the signal-to noise ratio After collecting the data signal-to-noise ratios were calculated as used in order to obtain optimum levels for every input parameter. The Nominal-the-better quality characteristic is considered in the hardness prediction Problem Formulation MIG is currently one of the most popular welding methods, especially in industrial environments. It is used extensively by the sheet metal industry and by extension, the automobile
doc_09_06_2015_22_57_17.docx