Development and Analysis of an Internal Gating System for Metal Castings
Open Access
Author:
Stanko, Carissa Lyn
Area of Honors:
Mechanical Engineering Technology (Behrend)
Degree:
Bachelor of Science
Document Type:
Thesis
Thesis Supervisors:
Richard B Englund, Thesis Supervisor Shannon Sweeney, Thesis Honors Advisor
Keywords:
Foundry Gating System
Abstract:
The goal of this thesis is to develop a method to gate castings that will increase yield rates compared to tradition gating systems. To achieve increased yield rates, the gating system will become part of the final casting. The gating system will be manufactured out of a metal, similar to that of the casting being poured, and will be placed inside the casting cavity. Liquid metal will be poured into the gating system and exit the gating system into the casting cavity; as the metal fills the mold, the gating system will be surrounded by liquid metal. The gating system will then be heated by the liquid metal until it reaches the melting temperature and becomes part of the casting. To predict the time when the gating system will melt, hand calculations will be used in combination with casting process simulation software. The gating system should stay below the solidus temperature for the majority of the pour to control the flow of the metal, and reach a maximum temperature, above the liquidus temperature, just after the pour ends.
