Abstract

The geometric modeling of the cutting tools is an important aspect for the design and manufacturing engineers from the viewpoint of shape realization. The geometry of cutting tools? surfaces based on two-dimensional (2D) projected geometry approach has certain limitations. This definition is also inadequate due to inaccuracy and non-applicability of the model for further manipulation. To address these issues, an accurate three-dimensional (3D) surface-based generic definition for a few families of custom-engineered milling cutters has been developed. The proposed geometric definition of the customized cutter is developed in terms of biparametric surface patches using proposed 3D rotational angles rather than the conventional 2D angles. The non-uniform rational B-spline (NURBS) curve(s) and generation of sweep surfaces based on it are utilized for the shape generation of cutting elements of the generic cutters. This representation scheme enables tooth shapes to be controlled by manipulating control polygons and sweep trajectories and in the process varied tool geometries can be generated. Further, an interface is developed that converts the proposed 3D parametric definition of the cutter into an intermediate neutral CAD format. This helps in rendering the cutter model in any CAD modeling environment. R. R. Karthi | B. Tamilarasu | S. Mukesh | K. M. Naveen Kumar"Geometric Modeling, Design and Analysis of Custom-Engineered Milling Cutters" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-2 | Issue-3 , April 2018, URL: http://www.ijtsrd.com/papers/ijtsrd10986.pdf http://www.ijtsrd.com/engineering/mechanical-engineering/10986/geometric-modeling-design-and-analysis-of-custom-engineered-milling-cutters/r-r-karthi

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