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Open AccessArticle

Experimental Study on Drilling MDF with Tools Coated with TiAlN and ZrN

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Faculty of Mechanical Engineering and Technology, Rzeszow University of Technology, Kwiatkowskiego 4, 37-450 Stalowa Wola, Poland
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Department of Materials Forming and Processing, Rzeszow University of Technology, Powstancow Warszawy 8, 35-959 Rzeszow, Poland
*
Author to whom correspondence should be addressed.
Materials 2019, 12(3), 386; https://doi.org/10.3390/ma12030386
Received: 24 December 2018 / Revised: 20 January 2019 / Accepted: 23 January 2019 / Published: 26 January 2019
(This article belongs to the Section Manufacturing Processes and Systems)
There is increasing use of wood-based composites in industry not only because of the shortage of solid wood, but above all for their better properties such as: strength, aesthetic appearance, etc., compared to wood. Medium density fiberboard (MDF) is a wood-based composite that is widely used in the furniture industry. The goal of the research conducted was to determine the effect of the type of coating on the drill cutting blades on the value of thrust force (Ft), cutting torque (Mc), cutting tool temperature (T) and surface roughness of the hole in drilling MDF panels. In the tests, three types of carbide drills (HW) were used: not coated, TiAlN coated and ZrN coated. The measurement of both the thrust force and the cutting torque was carried out using an industrial piezoelectric sensor. The temperature of the cutting tool in the drilling process was measured using an industrial temperature measurement system using a K-type thermocouple. It was found that the value of the maximum temperature of the tool in the drilling process depends not only on the cutting speed and feed rate, but also on the type of coating of the cutting tool. The value of both the cutting torque and the thrust force is significantly influenced by the value of the feed rate and the type of drill coating. The effect of varying plate density on the surface roughness of the hole and the variation of the value of the thrust force is also discussed. The results of the investigations were statistically analyzed using a multi-factorial analysis of variance (ANOVA). View Full-Text
Keywords: drilling MDF; thrust force; cutting temperature; surface roughness; cutting tool coating drilling MDF; thrust force; cutting temperature; surface roughness; cutting tool coating
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Szwajka, K.; Zielińska-Szwajka, J.; Trzepiecinski, T. Experimental Study on Drilling MDF with Tools Coated with TiAlN and ZrN. Materials 2019, 12, 386.

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