Six-Sigma is one of the most study management tools that used in problem-solving methodology that decreases cost also Six-Sigma process includes a collection of datum, measurement, and statistics to find out the different types of parameter. This paper presents an implementation of welding process technology that applied on MIG welding process by using (define, measure, analysis, improve, control) technology under Six-Sigma in order to increase tensile strength and hardness problem in aluminum pipe welding using MIG welding. By taking various pipe welding parameter. This paper explores practical solutions for MIG welding operations performance improvement by applying the six sigma principle.