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Licensed Unlicensed Requires Authentication Published by De Gruyter May 10, 2022

Effect of Melt and Mold Temperature on Fiber Orientation during Flow in Injection Molding of Reinforced Plastics

  • P. Shokri and N. Bhatnagar

Abstract

Injection molding, a highly productive manufacturing process, is one of the most versatile production methods in plastic manufacturing industry. It is capable of producing intricate net shapes without requiring finishing treatment and with good dimensional accuracy. In injection molding of reinforced thermoplastics the properties of the final product highly depend on the state of fiber orientation. Tailoring the fiber orientation in the final product, in order to control the properties, is the basic motivation of this study. Among different parameters, which could affect the orientation patterns, this study is concerned on analyzing the effects of mold and melt temperature on the state of fiber orientation during flow. In contrast to the melt temperature, which has a limited range for variation, mold temperature provides wide range of possible input at different locations such that by revealing its effect it could become one of the most attractive parameters in controlling the properties of injection molded fiber reinforced thermoplastic products.


N. Bhatnagar, Mechanical Engineering Department, Indian Institute of Technology, Delhi 110016, India, Email:


References

1 Pontes, A. J., Neves, N. M., Pouzada, A. S.: Polym. Compose. 24, p. 358 (2003)10.1002/pc.10035Search in Google Scholar

2 Aurich, T., Mennig, G.: Polym. Compose. 22, p. 680 (2001)10.1002/pc.10570Search in Google Scholar

3 Bay, R. S., Tucker III, C. L.: Polym. Compose. 13, p. 332 (1992)10.1002/pc.750130410Search in Google Scholar

4 Neves, N. M., Isdell, G., Pouzada, A. S., Powell, P. C.: Polym. Compose. 19, p. 640 (1998)10.1002/pc.10137Search in Google Scholar

5 Sanou, M. Chung, B., Cohen, C.: Polym. Eng. Sci. 25, p. 1008 (1985)10.1002/pen.760251604Search in Google Scholar

6 Gupta, M., Wang, K. K.: Polym. Compose. 14, p. 367 (1993)10.1002/pc.750140503Search in Google Scholar

7 Vincent, M., Giroud, T., Clarke, A., Eberhardt, C.: Polymer 46, p. 6719 (2005)10.1016/j.polymer.2005.05.026Search in Google Scholar

8 Malzahn, J. C., Schultz, J. M.: Compos. Sci. Tech. 25, p. 187 (1986)10.1016/0266-3538(86)90009-6Search in Google Scholar

9 Bay, R. S., Tucker III, C. L.: Polym. Compose. 13, p. 317 (1992)10.1002/pc.750130409Search in Google Scholar

10 Lee, S. C., Yang, D. Y., Ko, J., Youn, J. R.: J. Mat. Proc. Tech. 70, p. 83 (1997)10.1016/S0924-0136(97)00041-1Search in Google Scholar

11 Kennedy, P.: Flow Analysis of Injection Molds. Hanser, Munich (1995)Search in Google Scholar

12 Altan, M. C., Subbiah, S., Gu˝çeri, S. I., Pipes, R. B.: Polym. Eng. Sci. 30, p. 848 (1990)10.1002/pen.760301408Search in Google Scholar

13 Fischer, J. M.: Handbook of Molded Part Shrinkage and Warpage. Plastic Design Library, William Andrew Inc., USA (2002)10.1016/B978-188420772-3.50004-3Search in Google Scholar

14 Advani, S. G., Tucker III, C. L.: J. Rheology 31, p. 8 (1987)10.1122/1.549945Search in Google Scholar

15 Skourlis, T. P., Pochiraju, K., Chassapis, C., Manoochehri, S.: Composites Part B, B 29, p. 309 (1998)10.1016/S1359-8368(97)00011-5Search in Google Scholar

Received: 2006-01-08
Accepted: 2006-07-28
Published Online: 2022-05-10

© 2006 Hanser Publishers, Munich

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