The tool wear not only affects the surface quality and machining accuracy of the workpiece

but also frequent tool change will reduce the machining efficiency and increase the production cost. Studying the mechanism of tool wear

the factors of affecting the tool wear and the modeling technology of tool wear prediction

can provide technical support for reducing the tool wear. The research progress of tool wear and its prediction modeling technology in cutting process was reviewed. Firstly

based on the research progress of tool wear mechanism in recent years

the manifestations and characteristics of several main tool wear mechanisms were analyzed respectively. Secondly

the influence of cutting parameters

tool geometric parameters

tool and workpiece material properties and processing methods on tool wear in the cutting process were discussed

and the modeling method and form of tool wear prediction were summarized and analyzed. Finally

combined with the development concept of green energy-saving in manufacturing industry and the computer technology of high-speed development

the future development direction for the machining methods to reduce tool wear and tool wear prediction modeling technology were pointed out.