**Abstract**

 A vacuum vessel is an inflexible walled element inside which air and gases are evacuated, the outcome is a low-weight district vessel that is alluded to as a vacuum. A vacuum vessel is used in many applications, among one is in the space field for placing and carrying loads into space. The focus of this paper is to study and analyze the vacuum vessel, its development material and fabrication method by which vacuums that are sound, defect-free, leak-proof with a uniform strength are produced. After studying various research analyses and undergoing a literature review, Friction Stir Welding (FSW) has been proven to be a successful joining procedure for high strength aluminum alloys. This procedure has large benefits related to fusion and arc welding processes for joining aluminum alloy. This vacuum vessel work has been compiled for space application.

**Keywords:** aluminum alloy, vacuum vessel, fabrication methodology, friction stir welding, space application
