دانلود رایگان مقاله تولید مسیر ابزار برای سوراخ مته چمفرینگ از لوله با عرض ثابت

Abstract

When drilling circular holes into metal circular pipes, burr is generated at the hole entrance as well as at the hole exit. The burrs generated at the edge curves associated with the outer and inner pipe surfaces must be removed by constant chamfering. Geometrically, the two edge curves can be defined as cylinder-to-pipe intersection curves. In this paper, we employ differential geometric properties of the surface-to-surface intersection curves in order to generate an interference-free tool path with constant chamfering for a ball-end cutter. We demonstrate the effectiveness of our method by conducting experiments with physical pipe models.

6. Conclusion

In this paper, we introduced an interference-free automatic tool path generation method for a ball-end cutter to remove burrs resulting from the drilling of a circular pipe with constant chamfer based on the differential geometry of cylinder-to-pipe intersection curves. The advantages of our algorithm are as follows: • An efficient and accurate automatic collision-free tool path is generated. • Burrs are removed with constant chamfering. Furthermore, the cutter vector divides the cross section of the chamfered surface into two equi-length circular arcs.• The parameter values at the sequence of reference points are determined such that the feedrate of the machine operates as a function of the distance along the tool path.