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A precision design and NC manufacturing model for concave-arc ball-end cutters

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Abstract

Having first defined the helical angle as the angle between the cutting edge and the axis of rotation of the cutter, this paper then presents design models for producing the cutting edge and groove of a ball-end cutter with concave-arc generator. The relative feed speeds of the grinding wheel in the radial and axial directions during NC machining of the cutter are derived based upon a given speed of rotation. The feed speed of the grinding wheel in the radial direction is modified according to the cross section of the groove that passes through the center of the cutter sphere. The paper presents a method for manufacturing a concave-arc ball-end (CABE) cutter using a 2-axis NC machine. The models that are used to calculate the actual obtained groove and the computer simulation method are also included. To further enhance the accuracy of the mathematical models, a compensatory machining process that eliminates residual profile on the revolving surface is presented. This paper provides a valuable reference for the design and machining of this cutter type.

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Authors and Affiliations

  1. Department of Mechanical Engineering, Far East College, 49, Chung-Hua Rd. Hsin-Shi Hsiang, Tainan Country, 744, Taiwan, People’s Republic of China

    Ching-Ben Chen, Fu-Shou Wang, Pai-Chi Chang, Jia-Huei Hwang & Wei-Fang Chen

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  1. Ching-Ben Chen
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  2. Fu-Shou Wang
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  3. Pai-Chi Chang
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  4. Jia-Huei Hwang
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  5. Wei-Fang Chen
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Correspondence to Wei-Fang Chen.

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Chen, CB., Wang, FS., Chang, PC. et al. A precision design and NC manufacturing model for concave-arc ball-end cutters. Int J Adv Manuf Technol 31, 283–296 (2006). https://doi.org/10.1007/s00170-005-0186-7

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  • DOI: https://doi.org/10.1007/s00170-005-0186-7

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