Specific cutting work at drilling particleboards made of an alternative raw material

The study aims to investigate the effect of using alternative lignocellulosic materials in particleboard production on technological properties during drilling by measuring energy consumption and specific cutting work. The object of the research was to compare 3 types of particleboards made from: shredded wood-based panels (PO), energy willow particles (SV) and a mix of raw materials (MIX) when drilling holes for furniture joints. The materials were drilled at a constant revolution of the cutting tools of 6,000 rev/min with variable feed rates of 0.2 and 2 m/min. The boards researched had the same nominal density and met the requirements of EN 312 for P2-type boards. The energy consumption of the drilling process on the Felder Creator 950 CNC machine was tested using a PQ-box 150 energy quality analyzer. Energy consumption for a feed rate of 2.0 m/min is on average three times lower than for a feed rate of 0.2 m/min. The values for energy consumption and specific cutting work indicate that the particleboard material used affects energy consumption during drilling. Energy consumption for drilling one hole is highest for PO boards, and by using 50% of the raw material from shredded boards (MIX), this value can be reduced by 48% and 37% depending on the feed speeds.