UNIDIRECTIONAL COUPLED FINITE ELEMENT SIMULATION OF THERMOELASTIC TCP-DISPLACEMENT THROUGH MILLING PROCESS CAUSED HEAT LOAD

  • 1Chemnitz University of Technology, Institute for Machine Tools and Production Processes, Chemnitz, Germany , Chemnitz, DE
  • 2Chemnitz University of Technology, Institute for Machine Tools and Production Processes, Chemnitz, Germany, Chemnitz, DE
  • 3Fraunhofer Institute for Machine Tools and Forming Technology IWU, Chemnitz, Germany, Chemnitz, DE

Abstract

The paper presents a numerical simulation of thermal induced tool displacement during milling oper-ation. An unidirectional finite element model is developed which consists of two sections. A CFX model and a thermal transient model. With the aid of CFX module, the conjugated heat transfer be-tween milling tool and coolant fluid is described. The result of these efforts is the body temperature field of the end mill cutter due to thermal load, which is the thermal fingerprint of the cutting process. Subsequently the calculated body temperature field is linked with a transient-structural module to cal-culate the resulting thermal elastic displacement of the milling cutter. The thermo-elastic displace-ment of the tool is determined by examining a pilot node at the tip of the end mill, whose displace-ment is calculated in relation to the global coordinate system of the model. CFD, FEM, Tool Center Point, FEA, TCP-displacement, Heat source, Thermal displacement, Machine Tools, Milling, Design of experiments, DOE

Recommended articles

A FLEXIBLE AND ROBUST 3D COORDINATE MEASUREMENT SYSTEM BASED ON WHITE LIGHT INTERFEROMETRY FOR DEVIATION MEASUREMENTS ON SWISS-TYPE TURNING MACHINES

H.-W. Lahmann, S. Schmalzried, G. Ketterer, D. Weber, F. Welzel, D. Jeyara
Keywords: 3D measurement | Optical Measuring | Interferometry | Machine Calibration | Thermal Deviation

PART PROGRAM DEPENDENT LOSS FORECAST FOR ESTIMATING THE THERMAL IMPACT ON MACHINE TOOLS

E. Wenkler, A. Hellmich, S. Schroeder, S. Ihlenfeldt
Keywords: CNC | Machine tool | Thermal effects | Simulation | Thermal influence estimation | Thermal look ahead

OPTIMAL POSITIONING METHODS OF INTEGRAL DEFORMATION SENSORS – EXPERT KNOWLEDGE VERSUS MATHEMATICAL OPTIMIZATION

Ch. Brecher, R. Herzog, A. Naumann, R. Spierling, F. Tzanetos
Keywords: thermal issues | Machine tool | optimal sensor positioning

PREDICTION OF THERMAL GROWTH IN A HIGH-SPEED SPINDLE BY CONSIDERING THERMO-MECHANICAL BEHAVIOR

E. Yuksel, E. Budak, E. Ozlu, A. Oral, F. Igrek, F. Tosun
Keywords: Bearing Preload | Spindle | contact | Thermal