A Conjoint Analysis on the Preference of Pipe Welding Materials and Procedures

Welding is both as art and science and its common use is the jointing of points. Some of the welding procedures used for jointing metal pipes are Tungsten Inert Gas and Gas Metal Arc welding and in common practice plastic pipes are bonded with the use of butt-fusion welding procedure. Since 1970’s conjoint analysis was used as a way of finding out what the preference of consumers. The objective of this study is to determine the combination welding attributes that were most preferred using a conjoint analysis approach. With conjoint analysis, together with, the orthogonal design the preference for welding materials and procedures were analyzed. It showed that pipe material with 29.24% was the most preferred attribute and Non-destructive test as the least preferred with $\mathbf{2. 6 6 \%}$. The result of this study may be utilized in future related reviews and could be applicable in other related Mechanical systems requiring welding works.