一、概述我厂加工的材料大都是合金钢,强度和硬度均较高,且加工余量大。为了提高生产率往往采用材大的切削用量,因此对棒铣刀沟槽的形状有较高要求,刀齿既要有足够的强度,又要有足够的容屑空间和合理的沟形,使排屑顺利。使用折线齿背棒铣刀时,崩刃严重;使用兄弟厂生产的曲线齿背棒铣刀时,因法向齿背曲率半径过大,刃齿太虚,也仍有严重崩刃现象。为解决这一问题,经过分析,首先将原来用于铣制折线齿背的沟槽角铣刀加以 First, an overview of the materials I plant are mostly alloy steel, high strength and hardness, and machining allowance. In order to improve the productivity often use a large amount of cutting material, so the rod cutter groove shape has high requirements, the cutter teeth should have sufficient strength, but also have enough chip space and reasonable groove, so that row Chip smoothly. The use of broken tooth back bar cutter, the collapse of a serious edge; the use of Brothers factory curve tooth back stick cutter, because the law back to back curvature radius is too large, blade too virtual, there are still serious chipping phenomenon. To solve this problem, after analysis, the original groove milling cutter for milling the grooved corner cutter to be