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| Study on the surface coating and properties of carbide cutting tools |
| GUO Yanlei1，WANG Xuke1，LU Zhenfa2 |
| 1.Department of mechanical engineering，Henan College of Industry&Information Technology，Jiaozuo 454000，
China； 2.Zhengzhou Research Institute of mechanical engineering Co.，Ltd，Zhengzhou 450001，China |
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Abstract AlCrN, TiAlSiN and TiAlCrN coatings were prepared on the surface of cemented carbide cutting tools
by magnetron sputtering. The surface morphology, coating thickness, surface roughness, hardness, adhesion with
matrix and wear resistance of the three coatings were compared and analyzed. The results show that there are micro
pits with different sizes and white particles on the surface of three kinds of coatings of cemented carbide cutting
tools, while the thickness of TiAlSiN coating is relatively small and the roughness is relatively large; the microhardness
of the three kinds of coatings is obviously higher than that of the matrix, and the order of the microhardness
from high to low is: AlCrN > TiAlCrN>TiAlSiN; The adhesion of AlCrN, TiAlSiN and TiAlCrN coatings to the
substrate were 44, 39 and 48 N, respectively. The friction coefficient of the three kinds of coating samples is smaller
than that of the uncoated samples, and the wear rate under the same load is significantly smaller than that of the
matrix, and the wear rate of the coating is from small to large as AlCrN
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Received: 13 April 2020
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2022, Vol. 32 
