Strengthening Mechanism and Analysis of Rare Earth Cemented Carbide Tool Material Based on First Principle

2021 ◽  
Author(s):  
Zhaopeng Hao ◽  
Yuan Qiu ◽  
YiHang Fan
Keyword(s):  
Rare Earth ◽  
Tool Material ◽  
Strengthening Mechanism ◽  
Cemented Carbide ◽  
First Principle ◽  
Carbide Tool ◽  
Cemented Carbide Tool

Effect of Ambient Temperature on Wear of Cemented Carbide Tool Material

2010 ◽  
Vol 148-149 ◽  
pp. 276-279
Author(s):  
Hui Zhang ◽  
Jian Xin Deng ◽  
Gui Yu Li ◽  
Xing Ai ◽  
Jun Zhao
Keyword(s):  
Wear Rate ◽  
Ambient Temperature ◽  
Cutting Tools ◽  
Tool Material ◽  
Wear Test ◽  
Cemented Carbide ◽  
Test Machine ◽  
Carbide Tool ◽  
Tungsten Carbides ◽  
Cemented Carbide Tool

Cemented carbide has relatively good mechanical properties, so it is widely used as cutting tools. In this paper, a sliding wear test at high ambient temperature between cemented carbide tool material and ceramic was carried out using a ball-on-disc wear-test machine. The characteristics as to wear rate and friction coefficient were investigated. The special wear rate increased with an increase in operating temperature. The cemented carbide material with addition of TiC phase gave better wear resistance than cemented tungsten carbides at elevated temperature. SEM technology was adopted to observe the worn surfaces of specimens and wear mechanism were simultaneously discussed.

Experimental Research on ELID Grinding and Cutting Performance of Nano Cemented Carbide Cutters

2005 ◽  
Vol 291-292 ◽  
pp. 115-120 ◽  
Author(s):  
Fei Hu Zhang ◽  
J.C. Gui ◽  
Yi Zhi Liu ◽  
Hua Li Zhang
Keyword(s):  
Cutting Speed ◽  
Ground Surface ◽  
High Hardness ◽  
Cemented Carbide ◽  
Carbide Tool ◽  
Elid Grinding ◽  
Fine Grain ◽  
Cemented Carbide Tool ◽  
The Difference ◽  
Ground Surface Roughness

Nano cemented carbide is a new style cutter material. Because its grain size is very small, it is superior to common cemented carbide in properties, such as high hardness, fracture toughness, flexural strength and higher abrasion resistance. As a cutter material, nano cemented carbide has wide use. In this paper, nano cemented carbide tool was ground with ELID technology, and the cutting properties of nano cemented carbide were studied, and the difference in cutting properties among the ultra-fine grain, common cemented carbide and nano cemented carbide was analyzed under the same condition. Results imply that the ground surface roughness of nano cemented carbide is obviously lower than that of common cemented carbide, and the tool life of nano cemented carbide is 5-7 times longer than that of common cemented carbide at low cutting speed.

Effect of methane concentration on mechanical properties of HFCVD diamond-coated cemented carbide tool inserts

1996 ◽  
Vol 86-87 ◽  
pp. 678-685 ◽  
Author(s):  
M.A. Taher ◽  
W.F. Schmidt ◽  
W.D. Brown ◽  
S. Nasrazadani ◽  
H.A. Nasseem ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Methane Concentration ◽  
Cemented Carbide ◽  
Carbide Tool ◽  
Cemented Carbide Tool ◽  
Coated Cemented Carbide

Investigation on hardness testing of cemented carbide tool based on finite element method

2020 ◽  
pp. 095440622097616
Author(s):  
Siyuan Gao ◽  
Minli Zheng ◽  
Jinguo Chen ◽  
Wei Zhang
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Traditional Method ◽  
Three Dimensional ◽  
Cemented Carbide ◽  
Carbide Tool ◽  
Indentation Method ◽  
Cemented Carbide Tool ◽  
Hardness Values ◽  
Element Method

Hardness is a critical mechanical property of cutting tools, which significantly affects the cutting performance and wear resistance. Therefore, it is of great significance to obtain the hardness of the tool surface accurately. This paper presents a method based on finite element method (FEM) for studying the hardness of carbide tools. The microstructure of the carbide tool is obtained by scanning electron microscope(SEM). Combined with stereo principle, and secondary treatment, a three-dimensional multi-crystal model of carbide tool and indentation is established, and the model and hardness value obtained by different calculation methods are verified by microhardness test. The results show that the real hardness of the cemented carbide tool can be obtained by the indentation FEM model. The hardness values of cemented carbide tools are then calculated by the traditional method, Oliver-Pharr (OP) method and indentation method, respectively. It is found that the hardness value of the traditional method is the largest and fluctuates greatly, while the hardness values calculated by the OP method and indentation method are similar, and the fluctuation range of the hardness value calculated by the OP method is larger. In conclusion, the hardness calculated by the indentation work method is the best.

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