目前用改磨的标准锯条(ГОСТ6645—68)锯软的韧性材料时,两牙之间的容屑槽很快就会堵塞,切屑还和锯牙粘连在一块。图示的锯条能从切削区自由排屑,因而其耐用度比标准锯条高1.5～2倍。该锯条的几何参数为:前角γ=12°,后角α=30°,齿距=8mm(靠磨掉一齿的办法来加大),刃磨部份的宽度为37mm。采用这种改变了结构的锯条能节约50% At present, the use of a modified standard saw blade (ГОСТ 6645-68) to soften the tough material, the chip trough between the two teeth will soon be blocked, and the sawdust chip also stuck together. The illustrated saw blade provides free chip evacuation from the cutting zone, thus providing 1.5 to 2 times more durability than standard saw blades. The geometric parameters of the saw blade are: rake angle γ = 12 °, apex angle α = 30 °, pitch = 8 mm (increased by grinding away one tooth) and sharpening part width 37 mm. Using this change of structure saw blade can save 50%