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

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, , Citation S V Kirsanov and A S Babaev 2014 IOP Conf. Ser.: Mater. Sci. Eng. 66 012030 DOI 10.1088/1757-899X/66/1/012030

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

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1757-899X/66/1/012030

Abstract

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.

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10.1088/1757-899X/66/1/012030