Experimental study on interfacial heat-transfer coefficients at the casting/die interface in squeeze casting under transient condition

ABSTRACT

By using two-dimensional transient state inverse problems method, the interfacial heat-transfer coefficient (IHTC) was evaluated, based on experimentally measured temperature distributions of solidification of an Al alloy under various pressures (40, 50 and 60 MPa). The value of IHTC obtained from the mould and the casting varies with time subsequent to pouring the molten metal into a mould cavity. The impact of different applied pressure with different positions of mould insulation on IHTC was experimentally measured and calculated for the analysis. The calculated heat-transfer coefficients were used for solidification simulation in the compress casting process.

KEYWORDS:

• Interfacial heat transfer coefficient
• casting
• inverse problem method
• insulation position

Disclosure statement

No potential conflict of interest was reported by the authors.