{"title":"Thermal Analysis of Extrusion Process in Plastic Making","authors":"S. K. Fasogbon, T. M. Oladosu, O. S. Osasuyi","volume":111,"journal":"International Journal of Mechanical and Mechatronics Engineering","pagesStart":624,"pagesEnd":630,"ISSN":"1307-6892","URL":"https:\/\/publications.waset.org\/pdf\/10005347","abstract":"
Plastic extrusion has been an important process of plastic production since 19th<\/sup> century. Meanwhile, in plastic extrusion process, wide variation in temperature along the extrudate usually leads to scraps formation on the side of finished products. To avoid this situation, there is a need to deeply understand temperature distribution along the extrudate in plastic extrusion process. This work developed an analytical model that predicts the temperature distribution over the billet (the polymers melt) along the extrudate during extrusion process with the limitation that the polymer in question does not cover biopolymer such as DNA. The model was solved and simulated. Results for two different plastic materials (polyvinylchloride and polycarbonate) using self-developed MATLAB code and a commercially developed software (ANSYS) were generated and ultimately compared. It was observed that there is a thermodynamic heat transfer from the entry level of the billet into the die down to the end of it. The graph plots indicate a natural exponential decay of temperature with time and along the die length, with the temperature being 413 K and 474 K for polyvinylchloride and polycarbonate respectively at the entry level and 299.3 K and 328.8 K at the exit when the temperature of the surrounding was 298 K. The extrusion model was validated by comparison of MATLAB code simulation with a commercially available ANSYS simulation and the results favourably agree. This work concludes that the developed mathematical model and the self-generated MATLAB code are reliable tools in predicting temperature distribution along the extrudate in plastic extrusion process.<\/p>\r\n","references":"[1]\tAsiedu Y. and Gu P., \u201cProduct life cycle cost analysis: state of the art review,\u201d International Journal of Production Research, Volume 36, No 4, 1998, pp 883-908.\r\n[2]\tBasily B. B. and Sansome D. H., \u201cSome theoretical considerations for the direct drawing of section rod from round bar,\u201d International Journal of Mechanical Sciences, vol. 18, no. 4, 1976, pp. 201-208.\r\n[3]\tBrian R. T. and Wen J. T., \u201cExtrusion Process Control: Modeling, Identification, and Optimization,\u201d Control Systems Technology, IEEE Transactions on , Volume 6, 1998, Issue 2, pp 134-145 .\r\n[4]\tGatto, F. amp and Giarda A., \u201cThe characteristics of the three-dimensional analysis of plastic deformation according to the SERR method,\u201d International Journal of Mechanical Sciences, vol. 23, no. 3, 1981, pp. 129-148.\r\n[5]\tJeffery A., \u201cAdvanced engineering mathematics,\u201d Published by Academic press Inc., 2001, Pp 1114-1117.\r\n[6]\tKar P. K. and Das N. S., \u201cUpper bound analysis of extrusion of I section bars from square\/rectangular billets through square dies,\u201d International Journal of Mechanical Sciences, vol. 39, no. 8, 1997, pp. 925- 934.\r\n[7]\tKarania R. and Kazmer D., \u201cLow volume plastics manufacturing strategies,\u201d Journal of Mechanical Design, Vol. 129, 2007.\r\n[8]\tLewis R. W., Nithiarasu P. and Seetharamu, K. N., \u201cFundamentals of the Finite Element Method for Heat and Fluid Flow,\u201d 1st ed. John Wiley and Sons, New York, 2004.\r\n[9]\tMartin M. V. and Ishii K., \u201cDesign for variety: developing standardized and modularized product platform architectures,\u201d Res. Eng. Des, Vol. 13, Issue 4, 2002, pp 213-235.\r\n[10]\tNagpal, V. and Altan, T., \u201cAnalysis of the three-dimensional metal flow in extrusion of shapes with the use of dual stream functions,\u201d Proc. Third N.Am. Met. Res. Conf., Pittsburgh, Pennsylvenia, 1975, pp 26-40.\r\n[11]\tPathak K. K., Lomash S., Jain N. and Jha A. K., \u201cTube extrusion design for some selected inner profiles,\u201d International Journal of Physical Sciences Vol. 4, Issue 2, 2009, pp. 69-75.\r\n[12]\tSahoo S. K. and Kar P. K., \u201cRound-to-Square Extrusion Through Taper Die: A Three-dimensional Analysis,\u201d Manufacturing Technology Proc. of 19th AIMDT Conf., 2000.","publisher":"World Academy of Science, Engineering and Technology","index":"Open Science Index 111, 2016"}