Development of a Squeeze Semisolid High-Pressure Die Casting Process for Magnesium Structural Parts

Vicario, Iban; Crespo, I.; Val, Del; Weiß, Uwe; Cao, Dafu; pera, Ignacio Martinez de la; Sánchez, Jon Mikel

doi:10.1007/s11665-019-03981-9

Cited by 3 publications

(1 citation statement)

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“…The mentioned problems can be eliminated by changing different process parameters and observing the effect on them. In recent years, there has been a growing number of publications focusing on producing magnesium alloys by HPDC method [25][26][27][28]. The researchers have investigated the influence of the different process parameters on mechanical properties of AZ and AM series of Mg alloys.…”

Section: Introductionmentioning

confidence: 99%

Archives of Metallurgy and Materials

Urtekin,

Arslan,

Bozkurt

et al. 2020

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In this study, AZ91 Magnesium alloy is produced by cold chamber high pressure die casting (HPDC) method. Different combinations of the cold chamber HPDC process parameters were selected as; in-mold pressure values of 1000 bar and 1200 bar, the gate speed of 30 m/s and 45 m/s, the casting temperatures of 640°C and 680°C. In addition, the test samples were produced by conventional casting method. Tensile test, hardness test, dry sliding wear test and microstructure analysis of samples were performed. The mechanical properties of the samples produced by the cold chamber HPDC and the conventional casting method were compared. Using these parameters; the casting temperature 680°C, in-mold pressure 1000 bar and the gate speed 30 m/s, the highest tensile strength and the hardness value were obtained. Since the cooling rate in the conventional casting method is slower than that of the cold chamber HPDC method, high mechanical properties are obtained by the formation of a fine-grained structure in the cold chamber HPDC method. In dry sliding wear tests, it was observed that there was a decrease in friction coefficient and less material loss with the increase of hardness values of the sample produced by the cold chamber HPDC method.

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Section: Introductionmentioning

confidence: 99%