Numerical Analyses of the Feeder Number Influence on the Residual Stress in a Steel Casting
Journal Title: RECENT - Year 2009, Vol 10, Issue 26
Abstract
In the present article, the residual stresses, formed during the cooling of a steel sand casting, are achieved by computer simulation. The casting is a real industrial product - an elevator brake wheel made of low carbon steel. Calculations have been made for four different types of casting feedings - using one, two, three, and four main feeders. The distribution of the three principle stresses and the equivalent stresses in the one main feeder version have been shown. The maximum residual stress zones have been defined and the stress values in them have been specified. The formation of the stresses in these zones has been explained as well as the origin of the corresponding stress state. For two of the high value residual stress zones the formation course of the stresses during the casting cooling process has been shown. A comparison has been made between the casting residual stresses in the four considered versions. It has been shown that the feeders influence the casting residual stresses only in the zones near their necks. It has been established that the most appropriate would be to use just one main feeder.
Authors and Affiliations
Nikolay NIKOLOV, Lenin LAZOV
Keywords
Related Articles
- EP ID EP144797
- DOI -
- Views 64
- Downloads 0
Theoretical Study of Compression Characteristics of Highly-Viscous Products
Simplified rheological model which gives the possibility more certainly describe the deformation behaviour of candied fruits and to determine their shear characteristics in production process is proposed.
Investigating the Effects of Oil Pressure on Valve Rotation for a Direct Acting Valve Train
This paper investigates the influence of oil pressure on the engine exhaust valve rotation for a direct acting valve train. In introduction, a short presentation of the direct acting valve train is made and the necessity...
Studies Concerning the Possibility of Hardening through Thermic Isothermal Treatment of the Casting Alloys of Aluminium
The studies undertaken have the objective of proving the property of a hardening aluminum alloys through warm oil-quenching. Maintaining in the stair of the temperature intermediary between one of heating and one environ...
Contributions at the Modeling Dimensions of the Gauges by the Wear of this and by the Number of Verified Pieces
Based on the information’s about the values of the constructive parameters and of the tolerance fields provided by the actual projection standards of the gauges for the control of the cylindrical revolution pieces, both...
Insolvency - Solution for the Activity Continuation of the Companies Seriously Affected by the Crisis
The economic crisis began to render itself visible in the number of companies having entered under the incidence of the law concerning insolvency. The financial blockage and the impossibility of paying one’s obligations...