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刨刀是用来刨削平面的一种木工工具,如图1。它紧固在旋轉的刀杆上,常用来刨削加工余量为2～3公厘的針叶松木板。刀体的旋轉速度很高(2400～2500轉/分),每次的切削量达2～3公厘,再加上突然增加的負荷,因而使刀刃部分受到很大的撞击力:特別是碰到“节疤”时,这种撞击力更厉害,甚至会把刀刃部分打掉一块(形成一个缺口)。这样就要求刨刀具有高的强度和韌性,以及适当的硬度,同时还要求刨刀具有精确的尺寸和外形的平整度。根据苏联資料介
Planing knife is used to planing a carpentry tools plane, shown in Figure 1. It is fastened to the rotating arbor, commonly used to planing the processing margin of 2 to 3 mm softwood pine board. Blade body rotation speed (2400 ~ 2500 r / min), each cutting capacity of 2 to 3 mm, coupled with a sudden increase in load, thus making the blade part of a great impact: in particular, touch To the “knot scar”, this impact even more powerful, and even knocked the blade part of a (form a gap). This requires the planing tool to have high strength and toughness, as well as proper hardness, while also requiring the planer to have the exact dimensions and the flatness of the profile. According to the Soviet Union information