This study investigated the effects of the static radial force applied by ring debarker tips to frozen balsam fir logs, and tip path overlap on debarking quality.
The specific purpose of this investigation was to quantify and compare debarking quality resulting from two tip path overlap factors (i.
The analysis showed that radial force affected all three debarking parameters, while the effect of tip path overlap was only significant for the proportion of bark remaining on logs.
Tip path overlap was set by modifying the feed speed of the debarker while the rotation speed of the ring remained constant.
In addition to increased feed speed, tip path overlap can be reduced by decreasing ring rotation speed and/or tip width.
Tip path overlap also affected debarking quality, but its effect was lower within the range of operating parameters covered in the study.
The experiment consisted of debarking balsam fir logs using three levels of static radial force, each one with two values of overlap between tip paths.