Application Of Fluid Flow Mechanics In Gating Calculation Of Investment Casting Production
Gating time calculation uses fluid mechanics principles to execute gate and runner design of investment casting
mold design, using Bernoulli’s principles. Bernoulli’s equation provides the estimation of liquid metal velocity to arrive at the
filling time necessary for casting production. The filling time does not address the foundry man’s problem of filling thinnest
section and furthest portion of the casting. The present modeling attempts to estimate the kinetics of filling by using that
principle in some actual casting geometry. The modeling predicts earlier filling of thin section and faster filling the end section
of the castings.
Index Terms- Gating time, Gate area, Optimum filing time, Hot Molds.