DOI: 10.5176/2251-1857_M360
Authors: Anshul Singhal, Pranay Jain, Tesfaye Molalign, K. A. Desai and P.V.M. Rao
Abstract:
Selection of optimum process parameters in micro end-milling is more complicated than in conventional end-milling due to tighter part tolerances and an assortment of workpiece materials. Cutter Deflection, being a major source of surface profile errors, is an important factor in this decision. Modelling cutter deflection in micro end-milling is challenging compared to conventional end-milling due to the complexities involved in predicting cutting forces. The results presented in this paper compare existing models in both these domains along with experimental results. The importance of micro end-milling specific force models over conventional force models has been emphasized. The model is further used to predict cutter deflection and generated surface profile. A methodology to shortlist process parameters has also been suggested.
Keywords: micro end-milling; cutting forces; cutter deflection; surface error; process parameters
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