Effect of different processing parameters on interfacial heat-transfer behavior in high-pressure die-casting process

Yang, Wenxian; Yu, Wenbo; Cao, Yongyou; Li, Xiaobo; Guo, Zhipeng; Xiong, Shengwu

doi:10.1016/s1003-6326(18)64907-6

Cited by 13 publications

(1 citation statement)

References 19 publications

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“…Even though the process has many advantages, still the final castings always have defects such as porosity, pinholes, blowholes, shrinkage, inclusions and ring cracks [4,5,7]. Such defects, in addition to directly affecting the tensile and fatigue strengths, also adversely influence the machinability and surface finish of the cast parts [5,[8][9][10].…”

Section: Introductionmentioning

confidence: 99%

Minimizing the Casting Defects in High Pressure Die Casting Using Taguchi Analysis

Tariq

Masud

et al. 2021

Scientia Iranica

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High-Pressure Die Casting (HPDC) is one of the major production processes of automotive industry, widely used to manufacture geometrically complex nonferrous castings. The mechanical strength and microstructure of HPDC-manufactured products changes with variation in several process parameters such as injection pressure, molten temperature, 1 st and 2 nd stage plunger velocity, cooling temperature etc.Since these process parameters directly affect casting quality, therefore, their optimum combination is needed to maximize productivity of the process and minimize casting defects such as porosity, pinholes, blowholes, etc. Hence, to tackle this problem, an approach is presented in this paper that minimizes the major casting defect, i.e., porosity, in the HPDC process by optimizing parameters through Design of Experiments (DOE) in combination with a Taguchi Analysis. The results obtained showed that cooling time, injection pressure, and 2 nd stage plunger velocity have a major influence on the response factor (density of the cast part). It was further concluded that, by using: a 178 bar injection pressure, 665 °C molten temperature, 5 seconds of cooling time, 210 °C mold temperature, 0.20 m•s −1 1 st stage plunger velocity, and 6.0 m•s −1 2 nd stage plunger velocity, the rejection rate of the selected part due to porosity was reduced by 61%.

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Section: Introductionmentioning

confidence: 99%

Minimizing the Casting Defects in High Pressure Die Casting Using Taguchi Analysis

Tariq

Masud

et al. 2021

Scientia Iranica

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The Influence of In-Cavity Pressure on Heat Transfer and Porosity Formation During High-Pressure Die Casting of A380 Alloy

Dargusch

Hamasaiid

Dour

et al. 2020

JOM

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This paper is concerned with the measurement of thermal properties and incavity pressures in cold chamber high-pressure die casting. The influence of in-cavity pressure on the casting porosity, heat flux, and heat transfer coefficient has been investigated during die casting of an A380 alloy. The die was instrumented with heat transfer and pressure sensors to measure these values directly. Direct measurement of the in-cavity pressure was found to be more reliable than the metal pressure calculated from pressure measurements in the hydraulic system. Variations on the intensification pressure directly affect the in-cavity pressure. Changing the intensification pressure between 17 MPa and 90 MPa had little effect on the heat flux and heat transfer which likely reach saturation at a lower pressure during the rapid filling stages. Increases in intensification pressure reduced the level of porosity within the castings, being most effective up to a value of 67.4 MPa.

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Microstructural, Mechanical and Tribological Behavior of Gravity- and Squeeze-Cast Novel Al–Si–Cu–Mg–Fe Alloy

Chandra

Blessto

Divya

et al. 2020

Trans Indian Inst Met

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Effect of different processing parameters on interfacial heat-transfer behavior in high-pressure die-casting process

Cited by 13 publications

References 19 publications

Minimizing the Casting Defects in High Pressure Die Casting Using Taguchi Analysis

Minimizing the Casting Defects in High Pressure Die Casting Using Taguchi Analysis

The Influence of In-Cavity Pressure on Heat Transfer and Porosity Formation During High-Pressure Die Casting of A380 Alloy

Microstructural, Mechanical and Tribological Behavior of Gravity- and Squeeze-Cast Novel Al–Si–Cu–Mg–Fe Alloy

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