带正前角的铲齿铣刀,可以改善切削条件和提高耐用度。但Υ>0°的铣刀不同于标准规定容屑槽铣刀,因此这种铣刀容屑槽的计算和设计具有一系列特点。铲齿铣刀容屑槽,除了容纳切屑外,还应保证用铲刀能使齿的侧后面全部成形和顺利地从铣刀齿退出并回到原始位置。如果铲刀切削刃能退出齿背C点之外(图1a)及退刀轨迹 Shovel cutter with positive rake angle for improved cutting conditions and increased durability. However, milling cutters with Υ> 0 ° differ from the standard chip flute milling cutters in that they provide a series of features for the calculation and design of chip flutes. Shovel milling cutter chip flute, in addition to containing the chip, but also should ensure that with a blade can make all the side of the tooth behind the formation and smooth exit from the cutter and return to the original position. If the blade cutting edge can exit the back of C points (Figure 1a) and retraction path