Analysis of Welding Overlap in Front Fork under Bracket using Taguchi's Orthogonal Array and Grey relational approach

The MIG welding is one of the most popular welding techniques used in industries. This uses a consumable metal electrode. The input parameters in MIG welding play a significant role in deciding the weld quality, strength, cost and speed. Most of times manufacturer faces a problem to select optimum process parameters for a good quality weld. The main objective of this study is to find out optimal parameters such as under bracket chamfer, steering shaft chamfer and weld run to find out the variation in three performance characteristic such as forging height, penetration and pull out load. Based on experiments are conducted on L-9 orthogonal array, analysis has been carried on by using Grey Relational Analysis, a Taguchi method. Response tables & graphs were used to find optimal level of parameters in welding process. The obtained results show that the Taguchi Grey Relational Analysis is being effective technique to optimize the parameters for welding Process.