Modeling and analysis of coated tool temperature variation in dry milling of Inconel 718 turbine blade considering flank wear effect

Abstract This work is motivated by a fact that an excessively worn tool will continue to be used in practical machining of difficult-to-cut materials, such as nickel-based superalloys. Quantitative comparison of worn tool temperature variations with a sharp tool shows great practical significance. A thermal model is presented to describe the coated tool temperature variation in dry milling of nickel-based superalloys for a turbine blade. The influence of flank wear is considered according to the rapid tool wear. In the proposed model, both heat fluxes into the tool from the rake face and due to flank wear are calculated to estimate the tool temperature distribution at different tool states. Feed rate optimization at the convex and concave surfaces of blade based on the force constraints is employed to investigate its influence on heat generation and tool temperature rise. A comparative experiment for dry milling of an Inconel 718 turbine blade is carried out to validate the model. Considering a set of experimental data and the output of the numerical simulations in the present work, a key global heat transfer coefficient (HTC), working as a partitioning coefficient which determines the heat amounts flowing into the chip and the tool, respectively, is assessed through an inverse procedure. This comparison indicates a good agreement in both trends and values. With the alternative method, an accurate simulation of the tool temperature variation can be achieved by the assessed global HTC which is used as an input in the FE model. As the influence of tool wear should be considered, this work can be further employed into the feed rate scheduling guidance in machining complex parts.

[1]  Christian Brecher,et al.  NURBS Based Ultra-Precision Free-Form Machining , 2006 .

[2]  J. Lorentzon,et al.  Computational Materials Science and Surface Engineering Modelling the influence of carbides on tool wear , 2009 .

[3]  Taylan Altan,et al.  Estimation of tool wear in orthogonal cutting using the finite element analysis , 2004 .

[4]  Álisson Rocha Machado,et al.  Temperature determination at the chip–tool interface using an inverse thermal model considering the tool and tool holder , 2006 .

[5]  Paul Mativenga,et al.  Heat generation and temperature prediction in metal cutting: A review and implications for high speed machining , 2006 .

[6]  W. Grzesik,et al.  Finite element modelling of temperature distribution in the cutting zone in turning processes with differently coated tools , 2005 .

[7]  Guy Sutter,et al.  Chip geometries during high-speed machining for orthogonal cutting conditions , 2005 .

[8]  Yusuf Altintas,et al.  Prediction of tool and chip temperature in continuous and interrupted machining , 2002 .

[9]  H. Chandrasekaran,et al.  Investigation of the effects of tool micro-geometry and coating on tool temperature during orthogonal turning of quenched and tempered steel , 2004 .

[10]  Jean-Luc Battaglia,et al.  Thermal influence of cutting tool coatings , 2005 .

[11]  Ismail Lazoglu,et al.  Feedrate scheduling strategies for free-form surfaces , 2006 .

[12]  Taylan Altan,et al.  Feed rate optimization based on cutting force calculations in 3-axis milling of dies and molds with sculptured surfaces , 1994 .

[13]  Tuğrul Özel,et al.  Predictive Analytical and Thermal Modeling of Orthogonal Cutting Process—Part II: Effect of Tool Flank Wear on Tool Forces, Stresses, and Temperature Distributions , 2006 .

[14]  V. P. Krainov,et al.  Analytic calculations of the temperature field and heat flows on the tool surface in metal cutting due to sliding friction , 1991 .

[15]  Jinming Zhou,et al.  Study of surface quality in high speed turning of Inconel 718 with uncoated and coated CBN tools , 2012 .

[16]  James Wallbank,et al.  Cutting temperature: prediction and measurement methods—a review , 1999 .

[17]  Steven Y. Liang,et al.  CUTTING TEMPERATURE MODELING BASED ON NON-UNIFORM HEAT INTENSITY AND PARTITION RATIO , 2005 .

[18]  Mohammed Nouari,et al.  Finite element modelling of the thermo-mechanical behavior of coatings under extreme contact loading in dry machining , 2011 .

[19]  W. Grzesik,et al.  Experimental investigation of the cutting temperature when turning with coated indexable inserts , 1999 .

[20]  Necip Camuşcu,et al.  A numerical model to determine temperature distribution in orthogonal metal cutting , 2006 .

[21]  M. Nouari,et al.  Quantification of the chip segmentation in metal machining: Application to machining the aeronautical aluminium alloy AA2024-T351 with cemented carbide tools WC-Co , 2013 .

[22]  Sri Hinduja,et al.  Determination of the radial width of cut and cutting modes in milling , 1995 .

[23]  Dong-Woo Cho,et al.  Off-line feed rate scheduling using virtual CNC based on an evaluation of cutting performance , 2003, Comput. Aided Des..

[24]  Chia-Hsiang Menq,et al.  Integrated planning for precision machining of complex surfaces. Part 2: Application to the machining of a turbine blade die , 1997 .

[25]  Erhan Budak,et al.  Optimization of 5-Axis milling processes based on the process models with application to airfoil machining , 2007 .

[26]  Fabrizio Micari,et al.  On the evaluation of the global heat transfer coefficient in cutting , 2007 .

[27]  Jean-Luc Battaglia,et al.  Tool coatings influence on the heat transfer in the tool during machining , 2005 .

[28]  Chia-Hsiang Menq,et al.  Integrated planning for precision machining of complex surfaces. Part 1: Cutting-path and feedrate optimization , 1997 .

[29]  Hsin-Yu Kuo.  Model Based Cutter Analysis and Evaluation in Milling Titanium Alloys. , 2011 .

[30]  Ranga Komanduri,et al.  Thermal modeling of the metal cutting process: Part I — Temperature rise distribution due to shear plane heat source , 2000 .

[31]  Wit Grzesik,et al.  Prediction of friction and heat flow in machining incorporating thermophysical properties of the coating–chip interface , 2004 .

[32]  Elisabetta Ceretti,et al.  ALE Simulation of Orthogonal Cutting: a New Approach to Model Heat Transfer Phenomena at the Tool-Chip Interface , 2007 .

[33]  A. Kharkevich,et al.  Extension of basic geometric analysis of 3-D chip forms in metal cutting to chips with obstacle-induced deformation , 2002 .

[34]  Shiv Gopal Kapoor,et al.  A Slip-Line Field for Ploughing During Orthogonal Cutting , 1997, Manufacturing Science and Engineering: Volume 2.

[35]  Dong-Woo Cho,et al.  Feed rate scheduling model considering transverse rupture strength of a tool for 3D ball-end milling , 2004 .

[36]  T. Altan,et al.  Analytical modeling of drilling and ball end milling , 2000 .

[37]  Dong-Woo Cho,et al.  An intelligent feedrate scheduling based on virtual machining , 2003 .

[38]  Mohammad Sima,et al.  Investigations on the effects of multi-layered coated inserts in machining Ti–6Al–4V alloy with experiments and finite element simulations , 2010 .

[39]  Fritz Klocke,et al.  Coated Tools for Metal Cutting – Features and Applications , 1999 .

[40]  Ismail Lazoglu,et al.  Analysis of thermal fields in orthogonal machining with infrared imaging , 2008 .

[41]  Arif Gok,et al.  Cutting parameter and tool path style effects on cutting force and tool deflection in machining of convex and concave inclined surfaces , 2013 .

[42]  Jeffrey G. Hemmett,et al.  Robust Feedrate Selection for 3-Axis NC Machining Using Discrete Models , 2001 .

[43]  Jie Liu,et al.  On temperatures and tool wear in machining hypereutectic Al–Si alloys with vortex-tube cooling , 2007 .

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

[45]  Fangyu Peng,et al.  An investigation of workpiece temperature variation in end milling considering flank rubbing effect , 2013 .

[46]  S. Liang,et al.  Modelling of the cutting temperature distribution under the tool flank wear effect , 2003 .

[47]  Richard E. DeVor,et al.  A NEW MECHANISTIC MODEL FOR PREDICTING WORN TOOL CUTTING FORCES , 2001 .

[48]  Erhan Budak,et al.  Improving Cycle Time in Sculptured Surface Machining Through Force Modeling , 2004 .

[49]  Durul Ulutan,et al.  Determination of tool friction in presence of flank wear and stress distribution based validation using finite element simulations in machining of titanium and nickel based alloys , 2013 .

[50]  XiaoQi Chen,et al.  An experimental study of tool wear and cutting force variation in the end milling of Inconel 718 with coated carbide inserts , 2006 .

[51]  Jean-Luc Battaglia,et al.  Tribological and thermal functions of cutting tool coatings , 2004 .

[52]  Ismail Lazoglu,et al.  Feedrate optimization for freeform milling considering constraints from the feed drive system and process mechanics , 2013 .

[53]  M. Q. Al-Odat,et al.  Numerical analysis of cutting tool temperature in dry machining processes with embedded heat pipe , 2010 .

[54]  David K. Aspinwall,et al.  Tool life when high speed ball nose end milling Inconel 718 , 2001 .

[55]  Wit Grzesik,et al.  A computational approach to evaluate temperature and heat partition in machining with multilayer coated tools , 2003 .

[56]  Dahu Zhu,et al.  Tool wear characteristics in machining of nickel-based superalloys , 2013 .

[57]  Frank Weichert,et al.  Integrated construction and simulation of tool paths for milling dental crowns and bridges , 2013, Comput. Aided Des..

[58]  Richard E. DeVor,et al.  A worn tool force model for three-dimensional cutting operations , 2000 .

[59]  Li Zheng,et al.  Feedrate optimization for variant milling process based on cutting force prediction , 2004 .

[60]  Myung-Chang Kang,et al.  Thermal Characteristics in the Cutting of Inconel 718 Superalloy Using CW Nd: YAG Laser , 2010 .

[61]  Yunn-Shiuan Liao,et al.  Behaviors of end milling Inconel 718 superalloy by cemented carbide tools , 2008 .

[62]  Michael R. Lovell,et al.  Boundary element method analysis of temperature fields in coated cutting tools , 2001 .

[63]  Paul Mativenga,et al.  Investigation of heat partition in high speed turning of high strength alloy steel , 2005 .

[64]  W. Grzesik,et al.  The role of coatings in controlling the cutting process when turning with coated indexable inserts , 1998 .

[65]  Michele Heng,et al.  Design of a NURBS interpolator with minimal feed fluctuation and continuous feed modulation capability , 2010 .