Effect of the Relative Position of the Face Milling Tool towards the Workpiece on Machined Surface Roughness and Milling Dynamics
Effect of the Relative Position of the Face Milling Tool towards the Workpiece on Machined Surface Roughness and Milling Dynamics
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DOI：
10.3390/app9050842
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发表时间：
2019-03-01
影响因子：
2.7
通讯作者：
Gupta, Munish Kumar
中科院分区：
文献类型：
--
作者：
Pimenov, Danil Yurievich;Hassui, Amauri;Gupta, Munish Kumar
在面铣中，加工质量最重要的参数之一是加工表面的粗糙度。在许多文章中，都考虑了切削方式对面铣粗糙度和切削力的影响。然而，在铣削宽度B小于刀具直径D的平面铣削过程中，面铣刀与工件的相对位置和铣削运动学（上铣或下铣）等重要参数对切削力分量和加工表面粗糙度的影响尚未得到充分研究。同时，切削力分量的值可能会根据面铣刀相对于工件的相对位置而显着变化，因此对铣削过程中消耗的功率产生不同的影响。研究了这种影响后，就可以为使用面铣削操作创建技术流程的技术人员制定有用的建议。可以选择面铣刀和工件的相对位置，以提供通过面铣获得的表面粗糙度的最小值。本文展示了面铣刀相对于工件的相对位置和铣削运动学对切削力分量、面铣过程中机床主轴加速度（考虑铣刀旋转一整圈）以及对面铣获得的表面粗糙度的影响。给出了面铣刀相对于工件的相对位置分配和铣削运动学的实用建议。
In face milling one of the most important parameters of the process quality is the roughness of the machined surface. In many articles, the influence of cutting regimes on the roughness and cutting forces of face milling is considered. However, during flat face milling with the milling width B lower than the cutter's diameter D, the influence of such an important parameter as the relative position of the face mill towards the workpiece and the milling kinematics (Up or Down milling) on the cutting force components and the roughness of the machined surface has not been sufficiently studied. At the same time, the values of the cutting force components can vary significantly depending on the relative position of the face mill towards the workpiece, and thus have a different effect on the power expended on the milling process. Having studied this influence, it is possible to formulate useful recommendations for a technologist who creates a technological process using face milling operations. It is possible to choose such a relative position of the face mill and workpiece that will provide the smallest value of the surface roughness obtained by face milling. This paper shows the influence of the relative position of the face mill towards the workpiece and milling kinematics on the components of the cutting forces, the acceleration of the machine spindle in the process of face milling (considering the rotation of the mill for a full revolution), and on the surface roughness obtained by face milling. Practical recommendations on the assignment of the relative position of the face mill towards the workpiece and the milling kinematics are given.