Cast irons are known to be easy shape by sand casting due their high eutectic fraction. Despite this fact, together with cost benefits, obtaining good quality castings is not an task, although it depends on the level of defects allowed in each case. Casting here reviewed and classified into three classes according main origin: (1) related mixtures used make molds; (2) associated mold design geo...

Abstract It is of great practical value to complete the low-pressure casting aluminum alloy impeller in current development process. In research, it necessary focus on factory realization and use produce impellers, so that castings with compact structure meeting performance requirements can be obtained. Compared other methods, itself, as a precision method, cast metal solution lower pressure ap...

The main components of molding sand used in casting are sand, clay and water. composition the has a great influence on properties casting. In order to obtain high-quality castings, it is important manage that affect such as especially green compression strength compactability. this work, compactability predicted through machine learning technique using processing data obtained from foundry inpu...

Abstract The solidification process of IN713C Ni-based superalloy rod castings made by the investment casting method without and with use novel insulating module applied on ceramic mold was studied in this article. design cone-shaped developed based numerical simulations distribution local parameters, ensuring lowest centerline shrinkage porosity along castings. effectiveness tested industrial ...

This paper reports on the results of an investigation to minimize and control the distribution of porosity in edge-gated copper rotor die castings. A Flow 3-D computer modeling exercise was used to simulate shot profiles that result in formation of large pores in the end rings, as well as to predict improved profiles that will reduce or eliminate the residual porosity. These model results were ...