As a revolutionary advanced manufacturing technology, the core of laser-assisted machining technology lies in the innovation of traditional machining technology. It uses a laser to precisely modify the surface of the workpiece material through clever integration. This process can lead to significant changes in the microstructure, thermodynamic properties, and physical properties of the workpiece’s cutting layer, greatly facilitating the removal of material by the cutting tool. Especially for difficult-to-process materials, this technology can effectively solve the processing problems they face. This not only improves the processing accuracy, but also ensures the processing quality, making it possible to process difficult-to-process materials with high precision and high quality. This article comprehensively summarizes the latest research progress in laser-assisted precision machining technology and deeply summarizes the specific mechanism of laser-assisted machining technology on the surface of workpiece materials. The influence of laser-assisted machining technology on the cutting characteristics of machining materials is elaborated in detail, providing a theoretical basis for the application of this technology. Finally, the future development direction of laser-assisted machining technology is prospected.

In the field of numerical control machining, tool alignment technology is a key link to ensure machining accuracy and quality. Tool alignment refers to determining the correct position of the tool relative to the workpiece, and its accuracy directly affects the precision of part machining. With the development of precision machining technology, the research and application of cutting technology are increasingly valued. Tool alignment methods are mainly divided into two categories: contact and non-contact. The contact type tool alignment method relies on direct contact between the tool and the workpiece or tool alignment instrument to measure the position. Among them, the trial cutting method is a traditional contact type tool alignment method that determines the tool position through actual cutting, which is intuitive but inefficient. The contact type tool presetter uses specialized equipment to improve the accuracy and efficiency of tool presetting through contact measurement. The non-contact tool alignment method does not rely on physical contact, while the image method uses image recognition technology to determine the tool position, making it suitable for high-precision applications. The laser diffraction method and the laser direct method use laser technology for non-contact measurement. The laser diffraction method determines the position of the tool by analyzing the diffraction mode of the laser beam, while the laser direct method directly measures the distance between the laser and the tool. This article mainly introduces the classification of tool alignment, commonly used knife alignment methods and common tool alignment devices, as well as the development status of international tool alignment instrument products.

Due to the high strength, lightweight, and corrosion resistance of Ti6Al4V. Therefore, it is widely used in fields such as aerospace, automotive manufacturing, biomedicine, etc. This article conducts research on cutting mechanism and cutting experiments, focusing on the difficult machining characteristics of Ti6Al4V. Firstly, this article analyzes the material characteristics of Ti6Al4V material, and based on the principle of two-dimensional metal right angle cutting, the metal cutting theory of Ti6Al4V was analyzed. Secondly, the mechanism of chip formation and burr formation in Ti6Al4V was studied through orthogonal cutting experiments. Analyzed the effects of different tool radius, cutting depth, and cutting speed on the shear angle and chip morphology of Ti6Al4V. Finally, through single factor milling experiments, the influence of cutting parameters on the cutting force, surface residual stress, surface roughness, and surface morphology of Ti6Al4V was analyzed. This provides theoretical and experimental guidance for the processing of Ti6Al4V.