摘要
通过304不锈钢的100μm微孔超声辅助钻削试验,研究了超声振动辅助钻削的理论未变形钻削厚度,钻削轴向力与加工参数的关系,孔壁的表面质量,微孔入口处的毛刺以及加工后钻头刃部的状态,结果表明:超声振动辅助钻削在入钻后为连续切削;超声振动辅助可以明显改善微孔表面质量和入口处毛刺的尺寸,减小钻头刃部积屑馏的形成;钻削轴向力随进给速度和单次钻削深度的增加而增大,随主轴转速的升高而减小。
Through the experiment on 100lxm ultrasonic vibration assisted micro drilling of 304 stainless, this paper aims to study the following aspects： theoretical undeformed drilling thickness of ultrasonic vibration as- sisted micro drilling, the relation between axial force and machining parameters, the surface quality of hole wall, the burr of microporous entrance as well as the state of cutting edge for the processed drill, and the results show that： ultrasonic vibration assisted micro drilling is a continuous cutting process; ul- trasonic vibration can help to control the microporous surface quality and the size of the entrance burr so as to reduce the formation of the built - up edge ; drilling axial force enlarges with the increase of feed rate and the depth of single drilling, and decreases with increased spindle speed.
出处
《制造技术与机床》
北大核心
2016年第5期70-73,共4页
Manufacturing Technology & Machine Tool
