Evaluation of Selected Properties of Alder Wood as Functions of Sanding and Coating

Emilia-Adela Salca,Barbara Lis,Tomasz Krystofiak

doi:10.3390/coatings7100176

Emilia-Adela Salca, Barbara Lis + Show 1 more

Open Access

https://doi.org/10.3390/coatings7100176

Copy DOI

Abstract

The objective of this study was to optimize the sanding and coating processes of black alder wood to promote and support its use in furniture manufacturing. Two criteria have been applied for process optimization, namely, the minimum surface roughness of the samples and power consumption during sanding as a function of various sanding systems. The surface roughness of the sanded specimens and the power consumption during sanding strongly depends on the grit size used. Two eco-varnishes were applied to the samples by spraying. Moreover, the effect of the surface preparation and varnish type on the coating properties expressed by the varnish layer adherence to the substrate and surface glossiness was evaluated. For better glossiness values, the UV-cured varnish was preferred. The sanding with a grit sequence of 60, 120, and 150 grit size abrasives was found to be optimal when applied to black alder wood, and it is recommended to obtain performant UV-coated wood surfaces for furniture products.

Highlights

The furniture industry has been rapidly developing and diversifying
Overall power consumption increased with the decrease of grit size diameter for both approaches, such as the individual grit size step and final sanding, respectively
The surface roughness of the sanded specimens and the power consumption strongly depends on the grit size used

Summary

Introduction

It strongly leads to the implementation of a certain strategy shift from a traditional business model to a model based on value generation. Such an approach was supported by the competitive advantage of qualitative, innovative, and ecological products that are differently granted when compared to other products [1]. The product quality is influenced by rational and optimal fabrication based on some specific technologies. To implement such optimization, two certain criteria should be simultaneously fulfilled, namely, having the best surface quality and the best cutting performance [3,4]. Several factors of the wood-machine—tool interaction influence the surface quality through the machining process during sanding, including properties of species, density, and moisture content, as well as cutting parameters such as pressure, belt speed, feed speed, cutting depth, processing direction, abrasive tools [5,6,7,8,9,10], cutting force, and power consumption [4,11]

Objectives

Methods

Results

Conclusion