Numerical Prediction of Product Deformation and Identification of Major Controlling Factors during the IML Process Including Thermal Impact

Lee, Jaewon; Shin, Seungwon; Chung, Haseung

doi:10.1080/10407782.2011.609083

Cited by 3 publications

(3 citation statements)

References 16 publications

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“…The averaged deformation amounts along width and height are defined as W and H (Eqs. (13) and (14)) for battery cover, respectively, and similar procedure was also attempted for front cover. Figures 6(a) and 6(b) show numerical results with regard to the averaged deformation amounts along width, W, and height, H, for battery cover under the processing condition of cases 2 and 3 described in Table 1, respectively.…”

Section: Fig 5 Height Dimension Of Cad Model Experimental and Numermentioning

confidence: 99%

“…Chen et al [12] numerically analyzed the thermal-induced residual stress distribution and related it with processing condition in injection molding. Lee et al [13] have used MOLDFLOW to simulate injection molding process and analyzed following thermal deformation with ABAQUS to investigate the deformation by in-mold labeling (IML) process. They concluded that thermal impact affects the residual stress of the part considered, thereby determining final deformation.…”

Section: Introductionmentioning

confidence: 99%

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Identification of Controlling Parameters on Thermal Deformation of Mobile Device by Injection Molding Process

Chang

Shin²,

Chung

2013

Journal of Manufacturing Science and Engineering

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Injection molding process is a widely used manufacturing technique to massively produce the components of mobile device with various sizes and complicated geometries. However, the final part quality, especially dimension or geometry, referring to the original design specifications is not often acceptable due to various reasons. This study aims at developing the numerical model to predict the final part quality and subsequently identifying the critical reasons for existing problems, MOLDFLOW and ABAQUS software have been simultaneously used to simulate the injection molding process and thermal deformation arising after ejection step from the mold. In order to validate the model, the deformation predicted by the developed model was compared with experimental results, and both results showed good agreement. We also carried out design of experiment (DOE) to investigate the effect of various processing parameters that affect the final deformation of injection molded product. The developed model and information derived from DOE are expected to provide useful resources to the initial stage of mobile device design.

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Section: Fig 5 Height Dimension Of Cad Model Experimental and Numermentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Identification of Controlling Parameters on Thermal Deformation of Mobile Device by Injection Molding Process

Chang

Shin²,

Chung

2013

Journal of Manufacturing Science and Engineering

Self Cite

View full text Add to dashboard Cite

show abstract

“…where y is the predicted response (bowing depth) and E is the correlation constant computed from the DOE analysis [19,20]. The full description of equation (1) can be used to predict the bowing depth within the range of inputs shown in Table 1.…”

Section: Doe Analysismentioning

confidence: 99%