Microstructure design and preparation of cermet tool material based on wear prediction

• Published in: International journal of advanced manufacturing technology 2023-05, Vol.126 (5-6), p.1889-1906
• Main Authors: Wang, Dong, Wang, Tongxin, Li, ZhiBao, Yu, Hongtao, Zhang, Jingjing
• Format: Article
• Language: English
• Subjects: Advanced manufacturing technologies; Bend strength; CAE) and Design; Cermets; Computer-Aided Engineering (CAD; Cutting force; Cutting parameters; Cutting speed; Cutting tools; Cutting wear; Design; Engineering; Finite element method; Fracture toughness; Heat resistance; High speed machining; Industrial and Production Engineering; Manufacturing; Mechanical Engineering; Media Management; Microstructure; Morphology; Original Article; Plasma sintering; Prediction models; Rake faces; Simulation; Stainless steel; Stainless steels; Titanium alloys; Titanium diboride; Tool wear
• ISSN: 0268-3768; 1433-3015
• DOI: 10.1007/s00170-023-11217-3

In order to create the components of cermet tool material, a new method for designing tool material based on wear prediction was proposed. The finite element simulation of the cutting process was carried out based on a previously constructed microstructure model of the tool material which involves the components and its volume fractions. A new Ti(C 7 , N 3 )/TiB 2 /WC was designed and prepared based on the acquisition of variations in tool wear morphology among different components and the wear prediction results were verified by the high-speed cutting experiment of stainless steel 06Cr19Ni10. It has been shown that with 20% TiB 2 and 15% WC, respectively, the changes of the peak temperature of the rake face and the cutting force reached the lowest level and also the wear amount of the tool was the minimum. With a sintering temperature of 1550 °C, a pressure of 32 MPa and a holding time of 30 min, the bending strength of the Ti(C 7 , N 3 )/TiB 2 /WC cermet tool and hardness were 1096.45 MPa and 18.9 GPa, respectively, and the fracture toughness was 9.85 MPa∙m 1/2 . The validity of the proposed wear prediction model was verified by studying the variation of the wear amount and the main wear area of the developed tool. This research provides a new efficient method for the design of cermet tool materials, which is time-saving and cost-effective.