Abstract
This paper identifies the approximate height of thermal hot spots in casting components manufactured by high pressure die casting. Certain assumptions have been made based on previous research works. A new shape constant in Chvorinovs rule and thermal modulus has been determined, capable of identifying thermal spots in components manufactured with high pressure die casting. Chvorinovs rule describes the quantity of heat to be separated from component to solidify, directly proportional to its volume. Chvorinovs rule focuses on the determination of shape constant ‘n’ in high pressure die casting. Temperature hot spots (thermal) in high pressure die casting can be determined using the Chvorinovs rule with shape constant 1.2. Mould and shape constant was calculated and validated through ProCast simulation for the height of hot spot for a standard shape like a cylinder, cube, sphere and pyramid. Actual validation of shape constant 1.2 is applied on the die cast rotor and found that the hot spot results are as calculated with shape constant 1.2. The study will help the design engineers to modify the design of casting and the machine parameters.
Published Version
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