- 期刊
鋸片齒型對針葉材鋸切品質之影響
The Effect of Tooth Types of Saw Blades on the Quality of Sawn Softwood Timber
摘要
一般商用木材手冊只提供基本物理性質，就家具製造者而言，甚少有關針葉材之機械加工資料可供參考。本研究使用6種齒型(ST, KC, ATB, ATB+R, GJ,及KF)之碳化鎢鋸片，安裝於萬能圓鋸機上，進行紐西蘭放射松、加拿大雲杉－松木－冷杉（SPF）及鐵杉之鋸切，其中GJ及KF齒型用於縱切，而ST, KC, ATB及ATB+R則用於橫切。試驗結果顯示橫切作業時，KC齒型鋸切上述4種針葉材可獲致最佳之端面品質及不會產生端面木理撕裂，而ATB+R齒型則會產生較嚴重之起毛現象及木理撕裂，此外，KC齒型亦消耗最少電源；在縱切作業方面，GJ雖可獲致較佳之鋸切面，但並非非常明顯，而KF40因消耗較少電源，較適用於針葉材之縱切作業。
並列摘要
Commercial wood manual usually provides the basic physical properties of wood. However, very limited information about the machining performance of softwood is available for the furniture makers. In this experiment, seven tungsten carbide tipped saw blades with six tooth types (ST, KC, ATB, ATB+R, GJ, and KF) will be mounted on an auto-feeder table saw. The feed speeds will be changed during sawing. Teeth type of GJ and KF will be used to rip and ST, KC, ATB and ATB+R to crosscut NZ radiate pine, Canada SPF and hemlock, respectively. The results of this study showed that the level of torn grain was dependent on the type of crosscut sawing blade. According to this study, KC saw blade could obtain the best surface quality in crosscut sawing SPF and hemlock. KC saw blade also could produce clear edge in crosscut sawing of hemlock. On the contrary, ATB+R produced more serious burry edge in spruce and fir. Meanwhile, KC crosscut sawing blade consumed less power than other types of saw blade for SPF and hemlock. Furthermore, For ripping softwood, although GJ could produce finer surface, but KF40 may be the best choice because of less power consumption.