scholarly journals Casting Defects And Mechanical Properties of Al-Si Alloy with Bangkalan Local Clay as Sand Casting Binder

2018 ◽  
Vol 2 (1) ◽  
pp. 16-19
Author(s):  
Candi Galih Syaifullah ◽  
Ayik Saputra ◽  
Shabrina Ruhyatul ◽  
Putut Murdanto
Keyword(s):  
Mechanical Properties ◽  
Sand Casting ◽  
Casting Defects ◽  
Local Clay

Numerical Simulation of Filling and Solidification in Sand Casting by Procast

2013 ◽  
Vol 791-793 ◽  
pp. 550-553 ◽  
Author(s):  
Dong Dong Han ◽  
Cheng Jun Wang ◽  
Juan Chang ◽  
Lei Chen ◽  
Huai Bei Xie
Keyword(s):  
Numerical Simulation ◽  
Heat Dissipation ◽  
Solidification Process ◽  
Simulation Software ◽  
Sand Casting ◽  
Production Costs ◽  
Raw Material ◽  
Casting Defects ◽  
Three Dimension ◽  
Filling And Solidification

At present, pulley produced in China has been able to meet the demand of domestic and international markets. But there are many problem of the pulley industry in our country, such as too many production enterprises and the low level of export products. And as components of drive system are light weight and raw material price of pulley casting are rising, manufacturing requirements of the pulley are also more and more high. Aiming at the casting defects of pulley that enterprise current product, pulley casting blank model of common material HT250 be made by three-dimension software, numerical simulation of filling and solidification process for pulley sand casting by the casting simulation software Procast, the size and location of the various casting defects were forecasted and analyzed, reflecting the pulley filling and solidification process of the actual situation, due to the thicker pulley rim and less heat dissipation, position of shrinkage is close to the middle of rim [, a method of eliminating defects is proposed to realize sequential solidification, and thus to minimize porosity shrinkage and improve casting performance and reduce casting time and reduce production costs.

Reference Dies for the Evaluation of Tensile Properties of Gravity Cast Al-Si Alloys: An Overview

2014 ◽  
Vol 794-796 ◽  
pp. 71-76 ◽  
Author(s):  
Anilchandra R. Adamane ◽  
Elena Fiorese ◽  
Giulio Timelli ◽  
Franco Bonollo ◽  
Lars Arnberg
Keyword(s):  
Mechanical Properties ◽  
Tensile Properties ◽  
Scientific Literature ◽  
Die Casting ◽  
Al Alloy ◽  
Casting Defects ◽  
Automotive Components ◽  
Foundry Alloys ◽  
Alloy Castings ◽  
Gravity Cast

Aluminium-Silicon (Al-Si) alloys are the most extensively used Al foundry alloys and are widely used in gravity die-casting (GDC) of automotive components. Reference dies are used to characterize the tensile properties of the castings. Among the various die configurations, the ASTM B-108 (also called the Stahl Mold), and the AA Step Mold are most popular in the foundries. Several modifications to the standard dies have been suggested in the scientific literature to obtain better mechanical properties in minimizing casting defects. This work reviews the scientific literature on the effect of different reference dies on the porosity and tensile properties of the Al alloy castings.

Casting

2013 ◽  
pp. 47-101
Keyword(s):  
Investment Casting ◽  
Die Casting ◽  
Centrifugal Casting ◽  
Sand Casting ◽  
Casting Defects ◽  
Permanent Mold ◽  
Vacuum Melting ◽  
Mold Casting ◽  
Hot Chamber Die Casting ◽  
Metal Processing

Abstract This chapter covers the practices and procedures used for shape casting metals and alloys. It begins with a review of the factors that influence solidification and contribute to the formation of casting defects. It then describes basic melting methods, including induction, cupola, crucible, and vacuum melting, and common casting techniques such as sand casting, plaster and shell casting, evaporative pattern casting, investment casting, permanent mold casting, cold and hot chamber die casting, squeeze casting, semisolid metal processing, and centrifugal casting.

Numerical Simulation Analysis of Aluminium Alloy Wheels Casting Defects and Casting Process Optimization

2013 ◽  
Vol 749 ◽  
pp. 125-132 ◽  
Author(s):  
Lv Ming Yang ◽  
Li Li Zhao ◽  
Qing Qing Zhang ◽  
Tie Tao Zhou
Keyword(s):  
Mechanical Properties ◽  
Numerical Simulation ◽  
Aluminum Alloy ◽  
Casting Process ◽  
Shrinkage Cavity ◽  
Uniaxial Tensile ◽  
Uniaxial Tensile Test ◽  
Casting Defects ◽  
Pressure Casting ◽  
Aluminum Alloy Casting

In the low pressure casting process of A356 aluminum alloy wheel hub, casting defects including shrinkage cavity, shrinkage porosity, impurity and pore usually occur inside the casting. These defects affect the mechanical properties of the casting. To solve this problem, we conducted a study based on a cooperation project with a well-known domestic automobile wheel manufacturer. In the present study, uniaxial tensile test of aluminum alloy casting containing defects was simulated and analysed, and the effect of types and number of defects on mechanical properties was studied by finite element analysis software. Statistical analysis of the data was provided by the manufacturer. It has been found that the degassing technology is effective by the quantitative analysis method. Based on the analyses of experimental data and the numerical simulation it is deduced that the tensile strength of casting increases with the increase of the defects due to the presence of impurity. This was confirmed in this research project, it has been observed that the defect rate of the casting sample is reduced from 5%-6% to less than 1%.

Effect of Equal Channel Angular Pressing on Microstructure and Mechanical Properties of As-Cast Al-B4C Composite

2015 ◽  
Vol 813-814 ◽  
pp. 34-39
Author(s):  
Karunanaithi Saravanan ◽  
Mariappan Senthil Kumar ◽  
Perumal Venkatachalam ◽  
Rajaram Raghavan
Keyword(s):  
Mechanical Properties ◽  
Grain Size ◽  
Metal Matrix Composite ◽  
Matrix Composite ◽  
Automobile Industry ◽  
Metal Matrix ◽  
Sand Casting ◽  
Casting Method ◽  
Angular Pressing ◽  
Composite Microstructure

In this experiment, comparison analysis of mechanical properties, porosity and grain size of Pure Al (powder), 95%AL + 5% B4C (With sand casting method) and 95%AL + 5% B4C (With ECAP method) are determined. The ECAP method value is much greater than the sand casting method,because of metal matrix composite microstructure refinement during the pressing operation. Because of material porosity value decreases, powder particle consolidation, the closure of porosity, grain refinement and improve in dislocation occurs as ECAP method gives the results of Mechanical properties as like tensile strength 105.8Mpa, Hardness 94HV, density 888.88kg/m3values increase. At the same time, porosity and grain size value will be reduced because of individual power consolidation happening during ECAP methods like as 1.63% and 8μm. In this metal matrix composite is applied to aeronautical and automobile industry

Prospect of Thin-Walled Adjusted Pressure Casting Process for Superalloys

2014 ◽  
Vol 988 ◽  
pp. 268-273
Author(s):  
Nai Shun Yan ◽  
An Ping Dong ◽  
Jiao Zhang ◽  
Jun Wang ◽  
Bao De Sun
Keyword(s):  
Mechanical Properties ◽  
Casting Process ◽  
Research Progress ◽  
Casting Defects ◽  
Pressure Casting ◽  
Developing Trend ◽  
Thin Walled ◽  
Filling Capacity

The filling capacity, microstructure, mechanical properties, and casting defects were reviewed and analyzed for superalloy adjusted pressure casting. The research progress and advantages of adjusted pressure casting were discussed. The challenges of superalloy adjusted pressure casting was pointed out and its developing trend was predicated.

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