Deflection Simulation of a Die Installed in a High-Pressure Die-Casting Machine

Yamagata, Hiroshi; Shigenaga, Yoshiro; Tanikawa, Shoji; Nikawa, Makoto

doi:10.1299/kikaic.79.3920

Cited by 4 publications

(2 citation statements)

References 2 publications

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“…The authors Yamagata et al also emphasize the importance of die design and the high influence of the die deflection on the dimensional accuracy of HPDC parts. 16 A computational method was developed to estimate the die deflection in an HPDC process. The considerations take into account both the deflection of the cavity die caused by locking forces and by thermal distortion.…”

Section: Literature Reviewmentioning

confidence: 99%

An Initial Study of a Lightweight Die Casting Die Using a Modular Design Approach

Müller

Rothe

et al. 2018

Inter Metalcast

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High-pressure die casting dies are produced in most cases by conventional subtractive manufacturing processes. In this case, a massive design of the die usually ensures high stability during the casting process. However, at the same time, it leads to low flexibility in casting production and high material costs. The basic approach in the present work is to reduce the conventional subtractive production process of a die casting die in favor of a flexible, modular design, where only a few contour elements of the die have to be replaced for achieving different castings. In order to pave the way for this design principle, basic thermal and structural properties of a lightweight design die casting die were analyzed. The finite element calculations carried out showed that the modular lightweight die casting die consumes considerably less energy for preheating and during operation. Due to the reduced stiffness and material, however, calculated deformations and stresses in the die are considerably higher during the casting process. Although the initial calculation results look very promising, further knowledge must be gained in order to ensure the future success of modular lightweight die casting dies.

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Section: Literature Reviewmentioning

confidence: 99%

An Initial Study of a Lightweight Die Casting Die Using a Modular Design Approach

Müller

Rothe

et al. 2018

Inter Metalcast

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“…Mold deformation was analyzed on the assumption that it is important to consider the structure of the molding machine for highly accurate prediction. (14)(15)(16)(17)(18) On the basis of this consideration, the maximum gap between the mold parting faces when the resin was completely filled in the mold was calculated. Furthermore, the possibility of predicting the formation of flash in a molded product was examined by comparing the gap with the flash thickness.…”

Section: Introductionmentioning

confidence: 99%

Prediction of Flash Formed in Plastic Injection Molding Using Aluminum Alloy Mold Cavity by Numerical Simulation Considering Deformation of Mold Parts

Nikawa¹,

Shibata²,

Hatanaka³

et al. 2019

Sensors and Materials

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In this study, we examined a method of predicting the flash formed in plastic injection molding via computer simulations. The gap between molds was calculated by mold deformation simulation, and the results were compared with the actual flash thickness. The molding test was performed using a mold manufactured from steel and aluminum alloy. The pressure and temperature on the cavity surface during molding were measured using a measurement sensor. An injection molding simulation based on the actual pressure and temperature was carried out, and the results were mapped to the elements of a finite element (FE) model for mold deformation analysis. In this model, a mold equipped with a molding machine was used for the mold deformation analysis. The results of the mold deformation analysis were in good agreement with the actual results. The flash thickness with the product molded with an aluminum alloy mold was smaller than that with a steel mold. The calculated gap amount and the position of its generation correlated with the actual formed flash. The possibility of the present method for predicting flash formation was demonstrated.Hiroki Shibata received his B.S. and M.S. degrees in mechanical engineering from Gifu University, Japan, in 2011 and 2013, respectively. Currently, he works for a private company.Keisuke Hatanaka received his B.S. and M.S. degrees in mechanical engineering from Gifu University, Japan, in 2011 and 2013, respectively. Currently, he works for a private company.

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Effect of spray-cooling rate on the die-life of an HPDC die

Yamagata

Kimura

2017

Advances in Materials and Processing Technologies

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Deflection Simulation of a Die Installed in a High-Pressure Die-Casting Machine

Cited by 4 publications

References 2 publications

An Initial Study of a Lightweight Die Casting Die Using a Modular Design Approach

An Initial Study of a Lightweight Die Casting Die Using a Modular Design Approach

Prediction of Flash Formed in Plastic Injection Molding Using Aluminum Alloy Mold Cavity by Numerical Simulation Considering Deformation of Mold Parts

Effect of spray-cooling rate on the die-life of an HPDC die

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