Deburring of complex-shaped drilling intersections: a numerical method for modelling the tool path
Deburring of complex-shaped drilling intersections: a numerical method for modelling the tool path
复制标题
DOI：
10.1007/s00170-018-3205-1
复制
发表时间：
2019-05
期刊：
影响因子：
--
通讯作者：
K. Schützer;E. Abele;A. Meinhard;J. Donnelly
中科院分区：
文献类型：
--
作者：
K. Schützer;E. Abele;A. Meinhard;J. Donnelly
当钻孔时，特别是在出射表面上产生毛刺。现有的去毛刺工具和方法能够对平面出口表面或略微弯曲的横向钻孔进行去毛刺。然而，这些工具不能满足机械加工行业中去毛刺的实际要求，在机械加工行业中，部件的几何形状通常是复杂的。本文提出了一种数值方法，使去毛刺的复杂形状的钻孔交叉与球头铣刀。首先，分析特定的相交，因为它定义了球头铣刀的最大刀具直径。随后，生成球头铣刀的三轴刀具路径，以与相交几何形状相关联，从而实现恒定倒角并避免刀具碰撞。利用AlSi7Mg材料进行实验，测量二次毛刺高度和倒角宽度，验证了模型的正确性。随后，进一步的几何变量的模型的功能进行了研究。
When drilling holes, burrs are created in particular on the exit surface. Existing deburring tools and methods enable the deburring of plane exit surfaces or slightly curved cross-drilled holes. However, these tools do not meet practical requirements for deburring in the machining industry where component geometries are often complex. This paper presents a numerical method, which enables deburring of complex-shaped drilling intersections with ball-end cutters. First, the particular intersection is analysed as it defines the maximum tool diameter of the ball-end cutter. Subsequently, a three-axis tool path for ball-end cutters is generated to correlate with the intersection geometry thus enabling constant chamfering and avoiding tool collisions. The model is verified by an experiment using the material AlSi7Mg and measuring secondary burr heights and chamfer widths. Subsequently, the functionality of the model for further geometry variants is investigated.