CFD Evaluation of Hot Stamping Die Cooling System

 
 
 
  • Abstract
  • Keywords
  • References
  • PDF
  • Abstract


    This paper presents the results of CFD analysis on a complex near optimized cooling channels of hot stamping die for automotive structural part. Near optimum design is acceptable since cooling channels design is limited by its machining constraints. The objective of this evaluation is thus to determine the efficiency the cooling system by monitoring its cooling rate during 8 seconds of the quenching process. The die and blank were modelled as 3D volume mesh in a closed position thus ignoring the blank history data prior to the stamping operation. Temperature distribution representing hardness of the simulated final part is compared with the actual stamped component. The same procedure was validated against another structural component of different cooling channel design. The results show temperature pattern after 8 seconds can be used to predict harness distribution of the final part, thus indicating the viability of this method to be used in cooling system design.

     

     


     

  • Keywords


    CFD; Cooling system; Hot Stamping.

  • References


      [1] Maikranz-Valentin M, Weidig U, Schoof U, Becker H and Steinhoff K, “Components with Optimized Properties due to Advanced Thermo-Mechanical Process Strategies in Hot Sheet Metal Forming”, Steel Research International, Vol.79 No. 2, (2008), pp: 92-97.

      [2] Karbasian H and Tekkaya A.E, “A Review on Hot Stamping”, Journal of Materials Processing Technology, Vol.210 No.15, (2010), pp: 2103-2118.

      [3] Wenhua Wu, Ping Hu, and Guozhe Shen, “Thermomechanical-Phase Transformation Simulation of High-Strength Steel in Hot Forming”, Mathematical Problem in Engineering, Vol.2015, (2015), https://doi.org/10.1155/2015/982785

      [4] Liu H, Bao J, Xing Z, Zhang D, Song B and Lei C, “Modelling FE Simulation of Quenchable High Strength Steels Sheet Metal Hot Forming Process”, Journal of Materials Engineering and Performance, Vol. 20, (2011), pp: 894-902.

      [5] A. Zakaria, M.S.N Ibrahim and A. Senin, “Numerical Validation of an Optimized Hot Stamping Die Cooling System”, Journal of Physic: Conference Series, Vol.734, (2016).

      [6] Chen G.J, Zhang Y, Shen W, Qin L.J, Deng N and Yao X.C, “Numerical Simulation on Cooling system of Hot Stamping Mold in B-Pillar”, Proceedings of the 2nd International Conference (ICHSU2015), (2015), pp: 353-358.

      [7] Hu P, He B and Ying L, “Numerical Investigation on Cooling Performance of Hot Stamping Tool with Various Channel Design”, Applied Thermal Engineering, Vol.86, (2016), pp: 338-351.

      [8] He B., Ying L., Li X. and Hu P., “Optimal Design of Longitudinal Conformal Cooling Channel in Hot Stamping Tools”, Applied Thermal Engineering, Vol.106, (2016), pp: 1176-1189.

      [9] Mengmeng LV., Zhengwei GU., Xin LI. And Hong XU., “Optimal Design for Cooling System of Hot Stamping Dies”, ISIJ International, Vol.56, No.12, (2016), pp: 2250-2258.

      [10] Shapiro A.B, “Using LS_Dyna for Hot Stamping”, 7th European LS-Dyna Conference, (2009).

      [11] Lin T., Song HW., Zhang S.H., Cheng M. and Liu WJ, “Cooling System Design in Hot Stamping Tools by a Thermal-fluid-mechanical Coupled Approach”, Advanced in Mechanical Engineering, Vol.2014, http://dx.doi.org/10.1155/2014/545727

      [12] Zhong-de S, Mi-lan Z, Chao J, Ying X and Wen-Juan R, “Basic Study on Die Cooling System of Hot Stamping Process”, In. Conf. of Advanced Tech of Design and Manufacture, (2010).

      [13] Liu H, C. lei and Xing Z, “Cooling System of Hot Forming of Quenchable Steel BR150HS: Optimization and Manufacturing Methods”, International Journal Advanced Manufacturing Technology, Vol.69, (2013), pp: 211-223

      [14] Zhang Z, Gao P, Liu C and Li X, “Experimental and Simulation Study for Heat Coefficient in Hot Stamping of High-strength Boron Steel”, Metallurgical and Materials Trans B, Vol.46, (2015), pp: 2419-2422.

      [15] Salomonson P, Oldenburg M, Ackerstrom P and Bergman G, “Experimental and Numerical Evaluation of the Heat Transfer in Press Hardening”, Steel Research International, Vol.10, (2010), pp: 841-845.

      [16] Kim H, Lee S.H, and Choi H, “Evaluation of Contact of Heat Transfer Coefficient and Phase Transformation during Hot Stamping of Hat-type Part”, Materials, Vol.8, (2015), pp: 2030-2042


 

View

Download

Article ID: 16326
 
DOI: 10.14419/ijet.v7i3.13.16326




Copyright © 2012-2015 Science Publishing Corporation Inc. All rights reserved.