Assessment of melamine-coated MDF surface finish after peripheral milling under different cutting conditions

Souza, André J.; Jeremias, Tiago D.; Gonzalez, Arnaldo Ruben; Amorim, Heraldo J.

doi:10.1007/s00107-019-01413-y

Cited by 7 publications

(6 citation statements)

References 27 publications

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“…Wooden surface topography is highly depending on the machining process (Kilic et al 2006) and species characteristics (Thoma et al 2015). Evenly coated surface characteristics are dependent on the cutting conditions (Souza et al 2019). For this research, two samples were made modeling different types of surfaces after different technological processes, in order to keep as closest as possible to the 1. sample made of beech wood after the machining by the band saw, with shape errors generated after drying, 2. sample made of beech wood with surface shaped by the frame saw.…”

Section: Resultsmentioning

confidence: 99%

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Accuracy of the pneumatic follower for the wooden surface quality assessment

2020

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Wooden or wood-plastic composite surfaces are often valued for their aesthetic appearance and the quality of the surface. Independent from the technology, the surface features may be assessed using typical roughness parameters. In this paper, a pneumatic non-contact method is proposed. Despite certain limitations in surface characteristics measurement, air gauges proved to be a good tool for wooden surfaces, much cheaper than the laser profilometers. In the current research, a novel non-contact air gauge was combined with a slider to eliminate the influence of the asperities of higher order (waviness) and to protect the wooden surface from being damaged by the measuring nozzle. The measurement signal was used to control a follower that kept constant distance between the surface and the nozzle edge. The measuring speed was set at 0.8 mm/s, and the back-pressure was measured with accuracy of 0.01 kPa with real time acquisition. A series of measurements was taken, and the results were compared with the ones obtained from Perthen S8P profilometer (contact measurement) and WYKO NT 1100 interferometer microscope.

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Section: Resultsmentioning

confidence: 99%

“…The ability of air gauges to measure average roughness between Ra = 0.1 μm and Ra = 5 μm is known for decades (Smith 1994). There are numerous merits of air gauging, many of them are important for the wooden surface measurement, such as (Farago and Curtis 2014):…”

Section: Principle and Properties Of Air Gaugingmentioning

confidence: 99%

Accuracy of the pneumatic follower for the wooden surface quality assessment

2020

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“…Diverse machining processes such as drilling, milling, and turning are applied to obtain the required size and form of the MDF [1][2][3][4]. e most common technique for examining machining efficiency is based on the surface finishing and covers visual evaluation of surface quality measurement [5,6]. Nowadays, especially, algorithms based on experimental design are used to optimize various engineering problems [7,8].…”

Section: Introductionmentioning

confidence: 99%

Optimization of Surface Roughness in Drilling Medium-Density Fiberboard with a Parallel Robot

Ayyıldız

Kara

2021

Advances in Materials Science and Engineering

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This study focuses on the examination of the effect of cutting parameters on surface roughness when drilling medium-density fiberboard (MDF) with a parallel robot. Taguchi technique was applied to find the optimum drilling parameters and, later, the drilling processing. Experimental layout was established using the Taguchi L18 orthogonal array, and experimental data were examined via a statistical analysis of variance (ANOVA). Experimental results were performed by multiple regression analysis (linear and quadratic). Correlation coefficient (R2) was found 99.46% for surface roughness with the quadratic regression model. By the Taguchi analysis, the optimum values for the surface roughness were found to be a point angle of 118°, a cutting speed of 47.1 m/min, and a feed rate of 0.01 mm/rev. The optimization outcomes presented that the Taguchi technique had been successfully performed to decide the optimal surface roughness of the MDF in the drilling.

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“…A layer of melamine (low pressure) covers one or both faces of MDF panels, used in woodworking, to simulate the appearance of a natural wood product 10 . Edge tapes often hide the core of the melamine-coated panels in a process whose efficiency depends of the surface finish 11 . This process generates residues that must be burned in a controlled environment, as they release formaldehyde and VOC's (volatile organic components) into the atmosphere, such as toluene and limonene, which can cause respiratory syndromes and are considered carcinogenic 7 , 12 .…”

Section: Introductionmentioning

confidence: 99%

Energetic characterization and radiographic analysis of torrefied coated MDF residues

Castro

Zanuncio

et al. 2021

Sci Rep

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The use of wood panel residues as biomass for energy production is feasible. Heat treatments can improve energy properties while minimizing the emission of toxic gases due to thermoset polymers used in Medium Density Fiberboard (MDF) panels. Torrefaction or pre-carbonization, a heat treatment between 200 and 300 °C with low oxygen availability accumulates carbon and lignin, decreases hygroscopicity, and increases energy efficiency. The objective of this work was to evaluate the energy parameters (immediate, structural, and elementary chemical composition, moisture content, and yield) and density in torrefied MDF panels. The torrefaction improved the energetic features of coated MDF, decreasing the moisture content, volatile matter, and consequently, concentrating the carbon with better results in the samples torrefied for 40 min. The densitometric profiles of the torrefied MDF, obtained by X-ray densitometry, showed a decrease in the apparent density as torrefaction time increased. The digital X-ray images in gray and rainbow scale enabled the most detailed study of the density variation of MDF residues.

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Assessment of melamine-coated MDF surface finish after peripheral milling under different cutting conditions

Cited by 7 publications

References 27 publications

Accuracy of the pneumatic follower for the wooden surface quality assessment

Accuracy of the pneumatic follower for the wooden surface quality assessment

Optimization of Surface Roughness in Drilling Medium-Density Fiberboard with a Parallel Robot

Energetic characterization and radiographic analysis of torrefied coated MDF residues

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