加工小齿距铲背拉刀的设备和工艺

• 作 者: 武以震
• 机 构: 三○三七厂,
• 出 处: 航空工艺技术
• 发表日期: 1981年06期
• 关键词: 拉刀 齿距 平面磨床 拉削 压气机盘 榫槽 金刚石磨轮 单晶刚玉 工艺规程 齿升量

一、概况铲背拉刀与普通拉刀的主要区别是铲背拉刀的型面均要铲磨后角,以确保被拉削型面的精度和光洁度。它适于精拉各种精密、复杂型面,也可用来粗拉型面,如拉削涡轮盘枞树形榫槽、压气机盘燕尾形榫槽和各种叶片榫头型面等。过去铲磨拉刀型面后角,是在平面磨床或刃具磨床上,用锥度导磁磨座或薄的锥度垫片垫在拉刀的底面或侧面下,使拉刀待铲磨的后

First, an overview of the main difference between a shovel-back broach and an ordinary broach is shovel-back broach surface to be shovel grinding angle, to ensure the accuracy and finish of the broached surface. It is suitable for precision pull a variety of sophisticated and complex profiles, but also can be used to rough-profile, such as the cutting turbine disc fir tree tenon groove, dovetail compressor dovetail groove and a variety of blade tenon profile. In the past, the relief angle of the broach type surface was on the surface grinder or the cutting tool grinder, with the tapered magnetic bearing pad or the thin tapered washer under the bottom or side of the broach so that the broach