THE INFLUENCE OF MACROGEOMETRY AND CARBIDE ON THE DURABILITY OF HSC DRILLS

Adrian TRIF, Iuliana ISPAS

Abstract


The main purpose of this paper is to determine how the geometry and the base material of the “high speed drills” influence their durability and also the way in which wear occurs during the drilling process. Four different types of high speed drills (A, B, C and D) were tested, their base material being tungsten carbide, and the coating, TiCN (Titanium Carboitride). After analyzing the wear in the case of the four tested HSC drills, the optimal variant was chosen, taking into account its geometry and material, but also its durability. This study was developed in collaboration with Gühring, because all the experiments and analyzes were done within this company.

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References


Balla Srinivasa Prasad, D.S.Sal Ravl Klran, “Experimental investigation to optimize tool performance in high-speed drilling: a comparative study”, The Brazilian Society of Mechanical Sciences and Engineering, 2019, pp. 41:535

Dreval A. E., “Limiting State of High-Speed Drills”, Bauman Moscow State Technical University, Moscow, Russia, 2018, pp. 61-66

Ghenița Ion, Melenti Ștefan, “Conceptul prelucrării la viteze mari (High Speed Machining – HSM)”, Universitatea Tehnică a Moldovei, 2017, pp.142-145

Nukman Y., Farooqi Awais, et al, “A Strategic Development of Green Manufacturing Index (GMI) Topology Concerning the Environmental Impacts”, University of Malaya, Malaysia, 2017, pp. 372

Gühring company, https://guehring.com

Internal documentation obtained from Gühring company, 2020

Definition of machining, https:// en.wikipedia. org/ wiki/ Machining

Aspects about machining, https://www. custompartnet.com/wu/machining

Drilling operation, https://www. custompartnet.com/wu/hole-makin

The main types of drills, https://www. theengineerspost.com/types-of-drilling-machine/

The structure of a drill, http://neme-s.org/2005%20May%20Meeting/drills.pdf

The main types of margin, http://sumitool.com.my/

The drill point angle, https:// engineerharry.wordpress.com/2012/04/21/drills-drilling

The lip clearance angle, https://www. youtube.com/watch?v=LYiMg6O3FaE

High speed drilling operation, https://www.mmsonline.com/articles/the-fast-track-to-high-speed-drilling

Transition range of high speed machining for different materials, https://www. slideshare.net/nikhilkashyap125/high-speed-machining-hsm

High speed drilling tools, https://www. youtube.com/watch?v=sykjB7fS1Po

Aspects about 42CrMo4 material, https://www.materialgrades.com/42crmo4-high-grade-molybdenum-alloy-steel-1936.html

Chemical composition of 42CrMo4, ttp://www.novacciai.it/CMS/assets/2013/03/42CrMo4- Rev-1.pdf

Aspects about carbide, https:// matmatch.com/suppliers/cera-ceratizit/ examples/cemented-tungsten-carbide-properties

Properties of carbide, https://www. azom.com/properties.aspx?ArticleID=1203

InfiniteFocus device, https://www. alicona.com/en/products/infinitefocus

Fischerscope X-ray XDLM device, https://www.fischer-technology. com/en/united-states/products/coating-thickness-measurement/desktop-measurement-instruments/xdl-series


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