Experimental Research of Cutting Performance and Quality Abilities of Modern Drilling Tools

Abstract:

As it has turned out from statistical surveys, carried out in workshops, the greatest part of industrial machining is hole making operation. By this fact can be explained that the tool manufacturing companies pay a special attention to the development of drilling tools. The features of an advanced construction can be charaterised by the curved main edge, the missing chisel edge, the flank land, produced by three-plane sharpening, the chamfer, optimized to the task and the coolant bores as well [1, . The load carrying capacity of the micro-grained carbide base materials can be developed further by the considerable hardness and heat resistance of coatings and by their low friction coefficient. The synergic effect of all these developments makes the drilling tools suitable for carrying out high perfomance machining tasks: the reliability of the operations - simultaneously with the fulfillment of quality expectations - is increasing, in this way the requirement of cost efficiency can be achieved as well.

• Periodical: Key Engineering Materials (Volume 581)
• Pages: 32-37
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.581.32
• Online since: October 2013
• Authors: Béla Palásti-Kovács, Sándor Sipos, István Szalóki
• Keywords: Drilling Tools, Force Equation, Surface Finish, Tolerance

References

[1] G., Baranyai – G., Pusztay – S., Sipos: Investigation of stainless steel drilling with optimized tool bits Devices, Tools and Machines 2013. p.62 – 67. (In Hungarian).

[2] I., Szaloki: Drilling of the difficult to machine steels Thesis for BSc degree, Obuda University, Budapest, NGC 25/2011., p.70. (In Hungarian).

[3] S., Sipos – I., Szaloki: New methods in qualification of cutting performance during drilling operation Manufacturing 2012 The XXI. Conference of GTE on Manufacturing and related technologies, November 15-16. 2012. Budapest Session #5, CD version, S6_02, p.8.

[4] Garant: Machining Handbook Art. Nr. 110950 DE, ISBN 3-00-016882-6 (in German).

[5] Technical Guide AB Sandvik Coromant, SE-811 81 Sandviken, Sweden, C2900: 7.

[6] L., Pinter – B., Palasti-Kovacs: Connection between the micro geometry and tolerance of surface FMTU XVIII. International Scientific Conference, Cluj-Napoca, March 21-22, 2013 pp.319-322. ISSN 2067-6808.