Research progress on cutting machining simulation technology of metallic glasses

Metallic glasses have high strength, extreme corrosion resistance, good magnetism, low elastic modulus, and excellent biocompatibility which owns a wide range in industrial applications. However, the tremendous strength of metallic glasses makes it extremely difficult to machine. In recent years, although many academics worldwide have investigated the cutting mechanism and machinability of metallic glasses and achieved some significant results, which can be utilized as a reference to attain high-efficiency and precision machining of the material. However, most studies focus on experimental approaches which cause it difficult to obtain more in-depth results in material removal mechanism, surface formation mechanism, and other microcosmic physical phenomena. The acquisition of these mechanisms frequently requires the use of other research approaches, such as the technology of modeling and simulation. The simulation of machining technology with finite element and molecular dynamics has been gradually applied to turning, milling, and grinding of the material, which provides certain technological support for further interpretation and understanding of macro and micro machining mechanism. In view of this, this paper summarizes the relevant machining mechanism of metallic glasses, and then emphatically summarizes its research status, main achievements, and research progress of cutting simulation in recent years. Finally, the current research on cutting simulation of metallic glasses is objectively evaluated, of which its advantages and disadvantages are summarized. The development trend in cutting simulation of metallic glasses is proposed.