Kanu, R. C., & Steward, T. S. (2012, June), Senior Project: Using Design of Experiment (DOE) to Identify Material and Processing Variables that Impact Part Warpage in Injection Molding  Paper presented at 2012 ASEE Annual Conference & Exposition, San Antonio, Texas. 10.18260/1-2--21911

\bibitem{asee_peer_21911}
  Kanu, R. C., \& Steward, T. S. (2012, June), \emph{Senior Project: Using Design of Experiment (DOE) to Identify Material and Processing Variables that Impact Part Warpage in Injection Molding}
  Paper presented at 2012 ASEE Annual Conference \& Exposition, San Antonio, Texas.
  10.18260/1-2--21911

Rex C. Kanu and Tyler Steven Steward.  "Senior Project: Using Design of Experiment (DOE) to Identify Material and Processing Variables that Impact Part Warpage in Injection Molding".  2012 ASEE Annual Conference & Exposition, San Antonio, Texas, 2012, June.  ASEE Conferences, 2012.  https://peer.asee.org/21911 Internet.  18 Dec, 2024

\bibitem{asee_peer_21911}
  Rex C. Kanu and Tyler Steven Steward.
  "Senior Project: Using Design of Experiment (DOE) to Identify Material and Processing Variables that Impact Part Warpage in Injection Molding".
  \emph{2012 ASEE Annual Conference \& Exposition, San Antonio, Texas, 2012, June}.
  ASEE Conferences, 2012.
  https://peer.asee.org/21911 Internet.  18 Dec, 2024

@INPROCEEDINGS{asee_peer_21911
author = "Rex C. Kanu and Tyler Steven Steward"
title = "Senior Project: Using Design of Experiment (DOE) to Identify Material and Processing Variables that Impact Part Warpage in Injection Molding"
booktitle = "2012 ASEE Annual Conference \& Exposition"
year = "2012"
month = "June"
address = "San Antonio, Texas"
publisher = "ASEE Conferences"
note = {https://peer.asee.org/21911}
number = {10.18260/1-2--21911}
}

TY  - CPAPER
AB  - Using Design of Experiment (DOE) to Identify Material and Processing                       Variables that Impact Part Warpage in Injection                       MoldingThe injection molding of plastics parts consists of a series of events that include mold closing,injection of molten plastics into closed mold, cooling of molten plastics, mold opening, andejecting of molded parts. Of these events, the cooling process comprise 75% of the injectionmolding cycle time. Consequently, identifying the material and processing variables and/or theirinteractions that significantly influence the cooling process is of utmost importance inunderstanding and optimizing the cooling process and in preventing part warpage. Many studieshave investigated different aspects of the cooling process in injection molding, but none haveincorporated the thermal diffusivity of the material in their studies. Thermal diffusivity measurehow fast thermal energy travels through materials and thus affects the rate of thermal energy(heat transfer) removal during the cooling process. It appears the thermal diffusivity of plasticsmay play a crucial in the cooling process given that ratio of the thermal diffusivities of thematerials generally involved in the cooling process, plastics, coolant (water), and steel is 1:1.6:50(plastics:water:steel). This implies that thermal diffusivity of plastics may be the controlling orlimiting variable in the cooling process. Therefore in this study, by using the design ofexperiment (DOE), it is expected that the roles processing variables play in cooling process andin plastics part warpage. These variables include plastics thermal diffusivity, coolant flowregimes, mold temperature, and injection back pressure.This study is an attempt to help students in a manufacturing engineering technology programintegrate concepts taught in the design of experiment and plastics courses in trying to understandand solve an industrial problem in injection molding. The success of this approach will be sharewith the audience.
AU  - Rex C. Kanu
AU  - Tyler Steven Steward
CY  - San Antonio, Texas
DA  - 2012/06/10
PB  - ASEE Conferences
TI  - Senior Project: Using Design of Experiment (DOE) to Identify Material and Processing Variables that Impact Part Warpage in Injection Molding
UR  - https://peer.asee.org/21911
DO  - 10.18260/1-2--21911
ER  -