Effect of process variables on Mg-Si particles and extrudability of 6xxx series aluminum extrusions

Abstract

How would you……describe the overall significance of this paper? Process variables have significant impact on extrudability and product properties through their effects on the characteristics of Mg-Si particles in 6xxx series aluminum extrusions. This paper reviews the effects of MgSi particles on extrudability and the effects of major process parameters on the characteristics of Mg-Si particles as well as on the process and product properties of 6xxx series aluminum extrusions. This provides a framework for optimizing the manufacturing process of aluminum extrusions.…describe this work to a materials science and engineering professional with no experience in your technical specialty?The effects of process parameters on extrudability in terms of mechanical properties and surface quality of 6xxx series aluminum extrusions through their effects on the characteristics of Mg-Si particles are reviewed. The size, distribution, and morphology of the Mg-Si particles have significant impact on extrudability, and are influenced by various process parameters in the production of extrusions. This review provides a basis for process optimization for enhancing the process and product properties. …describe this work to a layperson?This paper reviews the effects of various process parameters on the characteristics of Mg-Si particles and the process and product properties of aluminum extrusions. This provides an understanding of the mechanisms behind the effects of various processing steps on the properties and of how to develop the optimum manufacturing process for extruded products.The Mg-Si particles are one of the major constituents in the microstructure of 6xxx series aluminum alloys. The size, distribution, and morphology of the Mg-Si particle have significant impact on extrudability in terms of mechanical properties and surface quality of aluminum extrusions. The characteristics of the Mg-Si particles are influenced by various process parameters in the production of extrusions. This paper reviews the effects of the major process variables on the Mg-Si particle characteristics and extrudability of aluminum extrusions.

Microstructure Investigations of Streak Formation in 6063 Aluminum Extrusions by Optical Metallographic Techniques

“…As a consequence, alloy K with a higher volume fraction and particle count of insoluble Mg 2 Si particles and AlFeSi intermetallics (Fig. 3) will be harder and more difficult to extrude and point to the need to reduce the extrusion speed significantly to avoid unsuitable surface quality (Zhu et al, 2011). Consequently, the volumetric energy, U , given by the area under the corresponding stress-strain curve, is greater for alloy K than it is for alloy B:…”

Evolution of Fe Bearing Intermetallics During DC Casting and Homogenization of an Al-Mg-Si Al Alloy

“…[2] This solute-rich liquid leads to the formation of the inter-dendritic secondary phases, such as Fe-rich intermetallic compounds (Fe-IMCs) and strengthening Mg 2 Si precipitates. [3,4] Previous studies show that a c -AlFeSi and b-AlFeSi are the two dominant Fe-IMCs in 6063 Al alloys. [5][6][7][8] 3D analysis of these Fe-IMCs after extraction from the primary a-Al using an Al dissolution approach revealed that a c -Al(FeMn)Si (from now referred to as a c -AlFeSi) had a dendritic-like morphology while b-AlFeSi had a plate-like morphology.…”

Effect of Processing Steps on the Mechanical Properties and Surface Appearance of 6063 Aluminium Extruded Products

“…The finer the precipitates, the greater their surface:volume ratio and the faster they dissolve [ 31 ]. The increase in the size or non-uniform distribution of coarse Mg 2 Si particles decreases the extrusion speed and the increase in solid solution of Mg and Si in the billet can cause a decrease in the maximum extrusion speed [ 32 ].…”