Design & Manufacturing

Korean Society of Die & Mold Engineering (한국금형공학회)
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A study on optimum temperature depending on resin of injection molded parts

사출 성형품의 수지에 따른 최적의 온도에 대한 연구

  • Received : 2019.05.04
  • Accepted : 2019.06.30
  • Published : 2019.06.30
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Abstract

For optimal injection molding, various molding conditions should be combined well. Therefore, engineers should be thoroughly familiar with mold design, fabrication, and injection molding. The choice of resin among the various molding conditions is closely related to the productivity of the molded part and the deformation after molding, so the engineer must select the appropriate resin. Engineers work on the basis of data provided by resin manufacturers during molding. However, in actual molding work, it is necessary to apply values slightly different from those provided to obtain molded articles of desired performance. In this study, various deformations of molded products were compared with respect to crystalline resin and amorphous resin when molded according to the data provided by the resin maker and molded at the changed values at the work site.

Keywords

References

  1. Han, S.R., "Numerical Analysis of Cooling Channels for Injection Molding Cycle Time Improvement of Plastic Horn Cover for and Automobile", Journal of the Korean Society of Manufacturing Process Engineers, Vol. 17, No. 5, pp. 84-90, 2018. https://doi.org/10.14775/ksmpe.2018.17.5.084
  2. Han, S.R., Kim, J.H., Jeon, S.G and Jeong, Y.D., "Variation of mechanical properties on polystyrene elastomer according to injection molding conditions", Journal of the Korean Society of Manufacturing Process Engineers, Vol. 5, No. 4, pp. 46-52, 2006.
  3. Yoo, J.H. and Kim, H.S., "The effects of injection molding conditions of polypropylene on the linear shrinkage and weight of molded parts", Transaction of the Korean Society of mechanical engineers, Vol. 19, No. 2, pp. 322-329, 1995. https://doi.org/10.22634/KSME.1995.19.2.322
  4. Han, S.R., "The Relation Between Injection Molding Conditions and Gloss of ABS Molding", Korea Academy Industrial Cooperation Society, Vol. 14, No. 11, pp. 5352-5356, 2013. https://doi.org/10.5762/KAIS.2013.14.11.5352
  5. Woo, J.W., Hong, J.S., Kim, H.K. and Lyu, M.Y., "Determined Car Door Latch Injection Molding Process Conditions through the Finite Elements Analysis", Korea Academy Industrial Cooperation Society, Vol. 17, No. 10, pp. 499-508, 2016.
  6. Lee, J.H. and Lee, S.B., "Analysis of Residual STress and Birefringence in a Transparent Injection Molded Article for Molding Condition", The Polymer Society of Korea, Vol. 40, No. 2, pp. 175-180, 2016. https://doi.org/10.7317/pk.2016.40.2.175
  7. Lee, M., Kim, H. and Lyu, M.Y., "A study on the warpage of glass fiber reinforced plastics for part design and operation conditions: Part 2. crystalline plastic", Polymer, Vol. 36, No. 6, pp. 677-684, 2012.
  8. Han, S.R., Kang, C.M., Han, K.T. and Jeong, Y.D., "A study on the filling imbalances between multi-cavity in hot runner mold", Journal of the Korean Society of Precision Engineering, Vol. 22, No. 9, pp. 173-178, 2005.