Study of accuracy and surface roughness of holes in comparative testing of small diameters gun drills

20th International Conference for Students and Young Scientists: Modern Techniques and Technologies

工业技术;材料科学

Kirsanov, S.V.^1 ; Babaev, A.S.^1

Tomsk Polytechnic University, Main Building of TPU, 30 Lenin Avenue, Tomsk, Russia^1

关键词: AlTiN coatings;    Cemented carbides;    Comparative testing;    Gun drills;    Industrial tests;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/66/1/012030/pdf
DOI  :  10.1088/1757-899X/66/1/012030

来源: IOP

【 摘 要 】

The results of industrial tests of gun drills with the diameter of 2.05 mm with carbide and with steel stems are given. It is shown that the gun drills with cemented carbide stem and especially AlTiN coating have a greater resistance and greater accuracy diametrical holes sizes in comparison to gun drill with steel stem.