Wood Bandsaw Blade Rigidity: the Impact of Sawblade Dimensions and Strain

Abstract

The productivity and sawing accuracy of band sawing machines are highly dependent on stable operation of band sawblades, thus the study was aimed to ascertain the influence of blade thickness, blade width, blade length, blade tension and loading on sawblade rigidity during operation and how the quality of sawing with changing sawblade tension changes. During the study, the dependence of sawblade deflection on side loading was investigated. Side force of band sawblades comprised 10 N, imitating destabilizing the saw loading. The studied band sawblades were 0.5 – 1.0 mm in thickness, 16 – 108 mm in width, and 600 – 1200 mm in length. The results of investigation show, that the greatest influence on operational stability of the band sawblades has actual tension power and sawblade free length. A rather high influence was demonstrated by sawblade width and thickness as well. The paper presents obtained relationships and conclusions.