木塑复合材料(WPC)因具有防水、防蛀和耐腐蚀等优点，广泛应用于室内外木制品制造领域。然而，由于受到切削温度和切削力耦合作用，WPC高速铣削极易形成积屑瘤及其表面木粉颗粒凸起和凹坑等损伤问题。本项目以木塑复合材料为铣削对象，采用高速摩擦和高速铣削试验，通过热力耦合效应分析，旨在抑制积屑瘤及控制损伤。首先分析木塑复合材料与木工刀具材料之间摩擦特性，建立摩擦模型；研究木塑复合材料高速铣削过程中切削力和切削温度特征，建立热力耦合模型；分析积屑瘤形态、类型及演变规律，揭示积屑瘤形成的热力耦合作用机理，提出积屑瘤抑制策略；在此基础上，分析切削表面损伤形貌及类型，揭示切削表面损伤的热力耦合作用机理；明确切削表面损伤缺陷表征方法和参数，建立基于支持向量机的损伤控制模型，实现木塑复合材料高速铣削表面损伤控制。研究成果可为木塑复合材料高速铣削加工奠定科学理论基础和提供实践依据，有助推动木塑制品制造技术发展。

Wood-plastic composites (WPCs) are widely applied in the field of indoors and outdoors wooden products manufacturing, due to high resistance to water and fungal colonization properties. However, WPCs milling process can easily lead to the formation of built-up edge and the appearance of small pits and raised particle above the surface, because of cutting temperature and cutting force. This project is based on the suppression of built-up edge and control of surface damage. The WPCs will be milled in this project. Firstly, the friction model will be established by the analysis of frictional characteristics between WPCs and woodworking tool materials. Secondly, the thermo-mechanical coupling model will also be established by the analysis of cutting force and cutting temperature during the high-speed milling of WPCs. Third, the thermo-mechanical coupling mechanism of the built-up edge will be revealed by the morphology analysis. On this basis, the damage mechanism of cutting surface will be revealed by the analysis of the types of cutting surface defects. The characterization method and parameters will be provided, and then the damage control model of cutting surface based on Support Vector Machine (SVM) is established to realize the surface damage control during the high-speed milling of WPCs. The conclusions from this project would promote the theory and technology development in the field of WPCs high-speed cutting. Moreover, it can promote the application of WPCs products.