WOOD RESEARCH Volume 61, Number 5, 2016
Bartosz Pałubicki and Tomasz Rogoziński

Efficiency of chips removal during CNC machining of particleboard

The results of testing of chips extraction system efficiency during CNC milling of particleboards were presented in this paper. Experimental machining was performed using the 3-axis CNC router Weeke Venture 108M and a standard diamond tipped, newly sharpened shank-type router bit. As a material the market size (2200×1250×18 mm) laminated particleboards with density of 649 kg.m-3 were used. The efficiency of chips extracion system of the CNC machine depends on the mode of milling. For pocketing nearly 100 % of chips were removed succesfullywhile for through-milling it was only 87 %. The extraction system worked with very high effieiency regarding chips smaller than 0.1 mm. The chips extraction efficiency decreases for larger and havier chips.

WOOD RESEARCH Volume 64, Number 2, 2019
Stanisław Dolny, Tomasz Rogoziński, and Stefan Dobak

Methodology of pilot-scale studies on pulse-jet filtration of air polluted with wood dust

This article describes in detail the construction and operation of the test rig employed for experimental pulse-jet filtration of air polluted with small wood particles created during machining. It enables evaluation of filter media used for wood dust separation and examination of influence of filtration conditions on the filter performance. Exemplary results of some experiments were presented to illustrate research possibilities of the testing filter and the method. More detailed results of studies on the filtration mechanisms and key parameters which determine the performance of a filter will be presented in further papers.