Paper Title:
Effect of Pressure on Structure and Properties of Lost Foam Casting of Al-11Si Cast Alloy
  Abstract

The paper presents the results of an investigation on aluminum-silicon (LM6) alloy using pressurized lost foam casting process. The study investigated the effect of pressure on casting integrity-geometry, eutectic silicon spacing, particle roundness and hardness. Following air pressures: 1bar, 2bar, 3bar and 4bar were applied on the solidifying alloy. The eutectic silicon spacing and particle roundness were measured using optical microscope which was equipped with image analyzer by averaging of at least ten results as well as Vickers hardness testing machine. For casting integrity-geometry all surfaces of solidified castings were captured by digital camera for better observation. The results show that applying pressure during solidification of the LM6 alloy has significant influence on casting integrity-geometry, eutectic silicon spacing, particle roundness and hardness of the alloy. By increasing the applied pressure, solidification time decline. Consequently, silicon spacing reduces as well as increasing of hardness. Besides, rising air pressure lead to fulfilling of molten which improves the casting integrity and particle roundness.

  Info
Periodical
Chapter
Chapter 2: Casting and Solidification
Edited by
Wu Fan
Pages
639-643
DOI
10.4028/www.scientific.net/AMM.110-116.639
Citation
A. A. Niakan, M.H. Idris, M. Karimian, A. Ourdjini, "Effect of Pressure on Structure and Properties of Lost Foam Casting of Al-11Si Cast Alloy", Applied Mechanics and Materials, Vols. 110-116, pp. 639-643, 2012
Online since
October 2011
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: P.K. Seo, C.G. Kang, Byung Min Kim
Abstract:Semisolid processing is now becoming of greater interest for the production of various parts than pressure die casting. In the rheo die...
526
Authors: Mohammad M. Haque, Ahmad Faris Ismail
Abstract:Green sand casting and chill mould casting methods are representing the slow and fast cooling rates of the brass casting, respectively. The...
7
Authors: Ya Qin Yang
Abstract:Motor rotator is one of the most important cast aluminum members. The configuration is so complex that it spends so much calculation and time...
625
Authors: Derya Dispinar, S. Akhtar, A. Nordmark, F. Syvertsen, M. Di Sabatino, L. Arnberg
Chapter 2: Forming in Melt or Near Melt Condition
Abstract:Gravity die casting (GDC) and low pressure die casting (LPDC) methods were used to compare the mechanical properties and porosity...
283
Authors: Yong Huang, Yue Dong, Xiao Ming Du
Chapter 2: Manufacturing and Design Science
Abstract:Filling and solidification for aluminum alloy packing block in die casting were simulated by numerical simulation. Distribution and change of...
2362