Failure Analysis On TIG Weldment

Ahmad Muslim , Othman (2008) Failure Analysis On TIG Weldment. Project Report. UTeM, Melaka, Malaysia. (Submitted)

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Abstract

This project is discussed about failure analysis on Tungsten Inert Gas (TIG) weldment. The objective of this failure analysis project is to determine and identify the type of failure that most occur in TIG welding. The parameter that contribute to this failure occur also will be study and identify. This failure analysis project will be held in machine syop laboratory at Universiti Teknikal Malaysia, Melaka and the machine that will be used is Tungstent Inert Gas welding. The same material such as mild steel will be used to do the joining process, and this action will be repeated and all the failure or defects that occur during this process will be recorded. The failure that expected to be occurring during this joining process is root crack, porosity, slag inclusion, and lack of root fusion. These all defects or failures will be analyzed using Fault Tree Analysis (FTA) and fishbone or cause and effect diagram. This method is used to determine the causes for this failure occur and recommendation for proper welding technique and proper parameter setting for this machine can be suggested after that.

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