Laser cladding in recent years

The laser cladding process is considered as one of the attractive and complex areas of laser. In recent years, various fields of study have been introduced for laser cladding. The purpose of this study is to introduce these areas in an applicable way. Regarding to this, the reasons for the superiority of the laser cladding process over other cladding methods will be investigated by introducing related studies. Due to the complexity of laser cladding, this technology is introduced in simple interpretation way in a separate section. Then, the types of laser processes are compared based on previous studies. In the following, the effect of the main process parameters such as power, laser beam diameter, travel speed, feed rate and shielding gas on the resulting clad parameters such as hardness, dilution, porosity and melt pool temperature will be investigated based on related studies. In addition, the effect of process subsidiary parameters such as overlap, path direction, preheat and post heat on clad parameters such as strength, maximum feed and hardness will be introduced using recent studies. Thus, different aspects of laser cladding studies in recent years will be provided for researchers and industries of this technology in a practical way.