scholarly journals Effect of Material Segregations Due to Squeeze Parameters on Mechanical Properties of High Pressure Diecast Parts

2020 ◽  
Vol 17 (1) ◽  
pp. 4-10
Author(s):  
Ferencz Peti ◽  
Petru Serban
Keyword(s):  
Mechanical Properties ◽  
High Pressure ◽  
Aluminium Alloys ◽  
Die Casting ◽  
Secondary Effects ◽  
Casting Technology ◽  
Die Cast ◽  
Fe Alloys ◽  
Pressure Die Casting ◽  
Cast Parts

AbstractThis article is a research on the effect of material segregations due to squeeze parameters on mechanical properties of high pressure die cast parts. The technology of squeezing is applied in high pressure die casting technology with the aim to improve the internal material health of the castings from aluminium alloys, such as AlSi9Cu3(Fe), components incorporated in assemblies as mechanical and hydraulic parts. The objective of this article is to determinate the influence of the secondary effects of squeeze technology on the mechanical properties of parts produced from AlSi9Cu3(Fe) alloys, with HPDC technology.

scholarly journals The Effect of Squeeze Pin Dimension and Operational Parameters on Material Homogenity of Aluminium High Pressure Die Cast Parts

2019 ◽  
Vol 16 (2) ◽  
pp. 7-12
Author(s):  
Ferencz Peti ◽  
Gabriela Strnad
Keyword(s):  
High Pressure ◽  
Die Casting ◽  
Secondary Effects ◽  
Operational Parameters ◽  
Casting Technology ◽  
Cast Aluminium ◽  
Die Cast ◽  
Primary And Secondary Effects ◽  
Pressure Die Casting ◽  
Cast Parts

Abstract The present paper is an experimental study on the squeeze pin effect on the high pressure die cast aluminium parts, as a way of improvement of material homogenity on various and big wall thickness castings. Squeeze is used in high pressure die casting technology for optimizing homogenity of big wall thicknesses of die cast parts working as structural, mechanical and hydraulic components, made of different aluminium alloys such AlSi alloys. The objective of this research is to highlight the primary and secondary effects of squeezing on the structural homogenity of high pressure die cast aluminium parts, as well as the dependence of the effects on the squeeze pin dimensions and the operating parameters.

Microstructure and Mechanical Properties of Low Pressure Die Cast AM50 Magnesium Alloy

2007 ◽  
Vol 546-549 ◽  
pp. 167-170 ◽  
Author(s):  
Li Ming Peng ◽  
Peng Huai Fu ◽  
Hai Yan Jiang ◽  
Chun Quan Zhai
Keyword(s):  
Mechanical Properties ◽  
High Pressure ◽  
Die Casting ◽  
Low Pressure ◽  
Microstructure And Mechanical Properties ◽  
Heat Treated ◽  
Die Cast ◽  
Second Phases ◽  
Am50 Alloy ◽  
Pressure Die Casting

Compact AM50 alloy components were cast by Low Pressure Die Casting (LPDC) process. The microstructure and mechanical properties of cast components were investigated under as-cast and heat treated states. It was found that the microstructure of LPDC AM50 is composed of α-Mg and second phases - Mg17Al12 and Al8Mn5. Compared with Gravity die casting, LPDC AM50 alloy had much coarser grains and higher density, with smaller sizes and less content of second phases. The density of AM50 alloy by LPDC process was ρ=1.7836g/cm3, with increase of 0.45% based on Gravity die casting and much more increase compared with high pressure die casting. The as-cast mechanical properties by LPDC process were: σ0.2=57.8Mpa, σb=192.3Mpa, δ=8.7%. These of Gravity die casting were: σ0.2=53Mpa, σb=173.4Mpa, δ=8.1%. UTS in LPDC increased about 20MPa, with better YTS and Elongation. Compared with that of high pressure die cast AM50, the YTS of LPDC was much lower, with comparable UTS and Elongation. The mechanical properties of the heat treated AM50 alloy were still in the same level of as-cast state. AM50 alloy by LPDC process is not necessary subjected to tempering treatment.

Microstructural evolution of an Al–Mg–Si–Mn– Fe alloy due to Ti and P addition

2021 ◽  
Vol 112 (9) ◽  
pp. 695-705
Author(s):  
Małgorzata Warmuzek ◽  
Adelajda Polkowska ◽  
Viktoria Boyko ◽  
Edward Czekaj ◽  
Konstantin Mikhalenkov ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
High Pressure ◽  
Tensile Strength ◽  
Die Casting ◽  
The Other ◽  
Casting Technology ◽  
Microstructural Effects ◽  
Strength And Plasticity ◽  
Pressure Die Casting ◽  
P Addition

Abstract This paper presents the results of research on material and microstructural effects in a hypoutectic Al–Mg– Si–Mn–Fe alloy, modified by the addition of Ti and Ti + P, in two series of castings, gravity and pressure. It has been found that the use of high pressure die casting technology allows for significant improvement of mechanical properties, especially tensile strength and plasticity of the examined alloy. On the other hand, the addition of Ti and Ti + P caused different material effects. In gravity castings, the addition of Ti and Ti + P caused a decrease in strength and plasticity, while in high-pressure castings, an increase in the values of these parameters was observed. The microstructural effects related to the foundry technology and those caused by Ti and P additions were revealed, such as differences in the phase composition of the interdendritic eutectics and in the morphology and dispersion of their phase constituents: Mg2Si and α-Al(Fe,Mn)Si.

Effect of Excess Mg on the Microstructure and Mechanical Properties of Al-Mg2Si High Pressure Die Casting Alloys

2013 ◽  
Vol 765 ◽  
pp. 64-68 ◽  
Author(s):  
Feng Yan ◽  
Shou Xun Ji ◽  
Zhong Yun Fan
Keyword(s):  
Mechanical Properties ◽  
High Pressure ◽  
Mechanical Performance ◽  
Eutectic Reaction ◽  
Die Casting ◽  
High Strength ◽  
Primary Phase ◽  
High Pressure Die Casting ◽  
Excess Mg ◽  
Pressure Die Casting

In this work we found that the addition of excess Mg can significantly improve the mechanical properties of pseudo-binary Al-Mg2Si alloys after high pressure die casting (HPDC). Al-8Mg2Si-6Mg alloy offered an excellent combination of high strength and reasonable ductility. Excess Mg lowers the Mg2Si content in the eutectic reaction and promotes the formation of Mg2Si as the primary phase, and this is believed to be the origin of improved mechanical performance.

Rheocasting of Al-Cu Alloy A201 with Different Silver Contents

2008 ◽  
Vol 141-143 ◽  
pp. 151-156 ◽  
Author(s):  
E.P. Masuku ◽  
Gonasagren Govender ◽  
L. Ivanchev ◽  
Heinrich Möller
Keyword(s):  
Mechanical Properties ◽  
High Pressure ◽  
Grain Boundaries ◽  
Die Casting ◽  
Solution Treatment ◽  
Cast Material ◽  
High Pressure Die Casting ◽  
Cu Alloy ◽  
Pressure Die Casting ◽  
Better Than

Rheocasting of alloys A206 and A201 was investigated in this study. Conical bars with different silver contents were produced using CSIR rheoprocess technology, together with high pressure die casting. The results showed that addition of Ag to alloy A206 increased the mechanical properties of the alloy. However, the addition of Ag also resulted in Cu-rich phases to precipitate at the grain boundaries of the as-cast material. The solution treatment used in this study was unable to dissolve all of this phase, especially in the 1.12%Ag-containing alloy. This resulted in slightly decreased mechanical properties compared to the 0.63%Ag-containing alloy. The T6 mechanical properties (strength and elongation) obtained in this study for rheocast A206 and A201 are better than those reported for permanent mould castings of alloy A206 and A201.

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