In recent years, empirical studies on the issue of repairing precious metal parts (instead of replacing these parts) with the use of laser cladding have grown well and the achieved results show major advances in this field. In order to increase the possibility of repairing defected parts (generally with minor defects) the use of direct metal deposition (one of the additive manufacturing methods) is proposed instead of using old methods such as welding and soldering. The purpose of this research is to study the feasibility and implementation of repairing process of metal parts by using a direct metal deposition method. A laboratory DMD device was used in the laser laboratory of the Department of Mechanical Engineering of Isfahan University of Technology. The approach of this research is empirical investigation of repairing process stages and to provide an applicable method for future researches. In the present report, we first introduce the DMD process, followed by a review on conventional repair methods, and then investigate the researches and activities carried out yet in the field of construction and repair using DMD. The results presented the steps one may follow to perform a repair process using DMD. Digitizing the defected part, modifying the defect zone, generating the repairing volume, slicing and generating the laser deposition path, performing the DMD process, and finally, post processing the part are the described steps. To implement the repair process, some open and limited pockets were created on AISI 316L components. AISIS 316L powder was used in the DMD process and the parameters were optimized so that the pockets were fully filled. Then, the optimized parameters were used to repair a spur gear with a broken tooth. Microstructural analysis and micro-hardness tests were used to investigate the interface between the substrate and the deposited material. The overall results showed that the DMD process is a powerful tool for repairing valued components, and with the aid of post machining the repaired part, the geometry can be identical with the original one. Keywords : Additive manufacturing, Repair, Direct metal deposition, Digitizing, Microstructure