Research on ELID Grinding of Nano-Cemented Carbide Tool

Abstract

Nano-cemented carbide is a novel material, which is superior to common cemented carbide on physical and mechanical properties, such as high hardness, toughness, flexural strength and higher wear resisting property. It is proposed to have wide application prospect to tools and mould manufacturing. In this paper, ELID grinding technique is applied to grind nano-cemented carbide tools. And the ground surface quality, cutting edge radius, and machinability of nano-cemented carbide tools are studied, compared with common cemented carbide. It is demonstrated by experimental results that nano-cemented carbide has higher grinding surface quality with less surface flaw than that of common cemented carbide. The cutting edge radius of nano-cemented carbide tool is less than that of common cemented carbide tool. Under the same conditions, the tool life of nano-cemented carbide is 1~2 times longer than that of common cemented carbide. The research results indicate that ELID grinding technique is suitable for grinding cemented carbide tools. Nano-cemented carbide tools have better machinability than common cemented carbide tools.

Study on surface properties of coated WC-Co alloy based on laser reduction process

“…With the deepening of the research on surface texture and surface coating technology, the synergistic modification of the two has been widely concerned by scholars. The combination of surface texture technology and coating technology can not only improve the adhesive wear resistance of the coating surface but also enhance the adhesion of the coating on the substrate surface (Zhang et al , 2018; Xu et al , 2019; Zheng et al , 2017; Deng et al , 2022). Misgra et al (2018) confirmed that the combination of substrate texturing and coated tools can effectively reduce cutting force and flank wear.…”

“…Misgra et al (2018) confirmed that the combination of substrate texturing and coated tools can effectively reduce cutting force and flank wear. Zhang et al (2017aZhang et al ( , 2017b and Duan et al (2018) prepared textured coated tools and carried out cutting tests. The results show that textured pretreatment can significantly improve the friction and cutting performance of coated tools, which is mainly manifested in the reduction of cutting force, cutting temperature and average friction coefficient between tool and chip.…”

Research on Minimum Mechanism of Roughness of ELID Grinding

“…cemented carbide YG8 b) Nano cemented carbide WC-7Co Fig.4Compared ELID grinding surface quality of nano and common cemented carbide[4] …”