MODELING APPROACHES AND SOFTWARE FOR PREDICTING THE PERFORMANCE OF MILLING OPERATIONS AT MAL-UBC

Abstract The author has been conducting research in the area of metal cutting mechanics, metal cutting dynamics, machine tool vibrations, precision machining and machine tool control in his Manufacturing Automation Laboratory, at The University of British Columbia, Canada since 1986. This article summarizes the research conducted in mechanics and dynamics of metal cutting in our laboratory. Modeling of mechanics of metal cutting is summarized first. The models include orthogonal to oblique cutting transformation, mechanistic modeling of cutting coefficients, slip line field and Finite Element modeling. The author mostly focused on milling. The kinematics of milling with and without structural vibrations is modeled. The geometric model of end mills and inserted cutters with arbitrary geometry are modeled. The prediction of forces, torque, power and dimensional surface finish is explained for milling operations. The chatter stability for milling operations is presented. The metal cutting knowledge is transferred to manufacturing industry by combining all the models in shop friendly software.

[1]  Yusuf Altintas,et al.  Analytical Stability Prediction and Design of Variable Pitch Cutters , 1998, Manufacturing Science and Engineering.

[2]  Yusuf Altintas,et al.  Mechanics of machining with chamfered tools , 2000 .

[3]  Allan Douglas Spence,et al.  Solid modeller based milling process simulation , 1992 .

[4]  M. Campomanes,et al.  Dynamics of milling flexible structures , 1998 .

[5]  Yusuf Altintas,et al.  Peripheral milling conditions for improved dimensional accuracy , 1994 .

[6]  Yusuf Altintas,et al.  Modeling and avoidance of static form errors in peripheral milling of plates , 1995 .

[7]  Eiji Shamoto,et al.  Prediction of Shear Angle in Oblique Cutting With Maximum Shear Stress and Minimum Energy Principles , 1997, Manufacturing Science and Engineering: Volume 1.

[8]  Yusuf Altintas,et al.  Mechanism of Cutting Force and Surface Generation in Dynamic Milling , 1991 .

[9]  Jiří Tlustý,et al.  Manufacturing processes and equipment , 1999 .

[10]  Yusuf Altintas,et al.  Analytical Prediction of Chatter Stability and Design for Variable Pitch Cutters , 1999 .

[11]  Richard E. DeVor,et al.  The effect of runout on cutting geometry and forces in end milling , 1983 .

[12]  Yusuf Altintas,et al.  Analytical Prediction of Chatter Stability in Milling—Part I: General Formulation , 1998 .

[13]  E. Armarego,et al.  The Machining of Metals , 1969 .

[14]  Yusuf Altintas,et al.  A general mechanics and dynamics model for helical end mills , 1996 .

[15]  S. A. Tobias.  Machine-tool vibration , 1965 .

[16]  A. Ber,et al.  A Method for Cutting Force Evaluation of End Mills , 1988 .

[17]  Fritz Klocke,et al.  Present Situation and Future Trends in Modelling of Machining Operations Progress Report of the CIRP Working Group ‘Modelling of Machining Operations’ , 1998 .

[18]  Yusuf Altintas,et al.  Prediction of Milling Force Coefficients From Orthogonal Cutting Data , 1996 .

[19]  Richard Paul Palmer.  A mechanistic model for the prediction of stresses, strains, and displacements in continuously reinforced concrete pavements , 1988 .

[20]  Yusuf Altintas,et al.  Mechanics and Dynamics of Ball End Milling , 1998 .

[21]  Richard E. DeVor,et al.  MECHANISTIC MODEL FOR THE PREDICTION OF THE FORCE SYSTEM IN FACE MILLING OPERATIONS. , 1984 .

[22]  Eiji Shamoto,et al.  Analytical Prediction of Stability Lobes in Ball End Milling , 1999 .

[23]  Erhan Budak,et al.  Mechanics and dynamics of milling thin walled structures , 1994 .

[24]  Kornel Ehmann,et al.  Machining Process Modeling: A Review , 1997 .

[25]  Yusuf Altintas,et al.  Prediction of ball-end milling forces from orthogonal cutting data , 1996 .

[26]  I. Yellowley,et al.  Observations on the mean values of forces, torque and specific power in the peripheral milling process , 1985 .

[27]  Darcy Thomas Montgomery,et al.  Milling of flexible structures , 1990 .

[28]  Steven Y. Liang,et al.  Modeling of Ball-End Milling Forces with Cutter Axis Inclination , 2000 .

[29]  S. Smith,et al.  Efficient simulation programs for chatter in milling , 1993 .

[30]  Yusuf Altintas,et al.  A Solid Modeller Based Milling Process Simulation and Planning System , 1994 .

[31]  M. C. Shaw,et al.  Mechanics of Machining: An Analytical Approach to Assessing Machinability , 1989 .

[32]  Yusuf Altintas,et al.  Cutting force and dimensional surface error generation in peripheral milling with variable pitch helical end mills , 1996 .

[33]  Yusuf Altintas,et al.  Dynamic peripheral milling of flexible structures , 1992 .

[34]  J. Tlusty,et al.  Basic Non-Linearity in Machining Chatter , 1981 .

[35]  松尾 哲夫.  The Machining of Metals, E.J.A.Armarego & R.H.Brown, Prentice-Hall, Inc., 1969 , 1984 .

[36]  Yusuf Altintas,et al.  Analytical Prediction of Stability Lobes in Milling , 1995 .

[37]  Yusuf Altintas,et al.  Improved modelling of cutting force coefficients in peripheral milling , 1994 .

[38]  Yusuf Altintas,et al.  Manufacturing Automation: Metal Cutting Mechanics, Machine Tool Vibrations, and CNC Design , 2000 .

[39]  William J. Endres,et al.  A Dual-Mechanism Approach to the Prediction of Machining Forces, Part 1: Model Development , 1995 .

[40]  Peter F. W. Lee,et al.  Mechanics and dynamics of ballend milling , 1995 .

[41]  Mohammad R. Movahhedy.  Ale simulation of chip formation in orthogonal metal cutting process , 2000 .

[42]  M. S. Gadala,et al.  SIMULATION OF CHIP FORMATION IN ORTHOGONAL METAL CUTTING PROCESS: AN ALE FINITE ELEMENT APPROACH , 2000 .

[43]  M. E. Merchant.  Mechanics of the Metal Cutting Process. II. Plasticity Conditions in Orthogonal Cutting , 1945 .

[44]  Yusuf Altintas,et al.  Prediction of Cutting Forces and Tool Breakage in Milling from Feed Drive Current Measurements , 1992 .

[45]  Yusuf Altintas,et al.  End Milling Force Algorithms for CAD Systems , 1991 .

[46]  Ruxu Du,et al.  Modelling Machining Dynamics Including Damping in the Tool-Workpiece Interface , 1994 .

[47]  Yusuf Altintas,et al.  Prediction of Ball End Milling Forces , 1996 .