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 47
- Downloads 0
Phase Transformation in Austempered Ductile Irons
Austempered Ductile Iron (A.D.I.) with a bainitic matrix, obtained by heat treatment and isothermal hardening is the material which combines a lot of superior attributes of the classical cast iron or forged iron, being i...
Complex Algorithmic and Software System for Simulation of Technical States on an Experimental Laboratory Platform
The present paper describes the development and the application of a complex and sophisticated algorithmic and software system, which is designed to simulate technical conditions and systems states, which could be genera...
Optimization of Feeder Design for the Casting of a “Support”
Optimized design of feeders in the casting of parts is based on the comparison of several technological variants. The optimized variant is established by taking into consideration part quality and manufacturing cost. Pri...
The Implementation of the Frequency Analyzer Principle for the Estimation of the Electronically Switched Capacitor's Capacitance
In this work, the authors investigated the implementation of the frequency analyzer principle to produce real-time estimates of the equivalent capacitance of the electronically switched capacitor for the two-phase induct...
Implementing Value Analysis in Designing of Single Roll Crusher
Implementation of Value Analysis in designing of industrial equipment is a demonstrated need for a long time in highly developed industries. Beneficial results of applying this creative, functional and very practical mul...