The metal cleaning process is the removal of contaminants from the surface of ferrous and non-ferrous materials. The
oil, greases and coolant are stick in the metal surface during the deep drawing process, then the oil and greases are affected
during the welding process. The oil, greases and coolant are removed in the various processes such as Electrolytic plasma
processing (EPP), Laser technology and micro-bubble technology are used to clean the metal surface. In micro bubble
technology the micro bubbles flotation combined with the deionized water to clean the contaminants from the metal surface. In
this paper we study of all the aspects to relative in improvement for cleaning and improve the metal surface.
