• Alshamrani, Ali
• Khawale, Vijay
• Hillary, Justin
• Ramamurthy, Sivakumar
• Sharma, Manish
• Haldar, Barun
• Palanisamy, Satishkumar
• Alrasheedi, Nashmi
• Krishnamoorthy, Suresh

Abstract

<jats:p>A step die made of H13 steel was utilized in this investigation to castaluminum alloy AA6061 at a pressure of 95 MPa in sections measuring 3, 6, 9,12, and 15 mm in thickness. Surface temperatures during the squeeze castingprocess, as well as temperatures at distances of 3, 6, and 9 mm from theinner wall of the die, were recorded using K-type thermocouples. Utilizingthe inverse method to solve one-dimensional heat conduction equations, wesuccessfully determined the interfacial heat transferring coefficients(IHTC) and the interfacial heat flux (IHF) of the cast and die surface. Thecalculations revealed that with the commencement of squeeze casting, therewas a significant rise in the IHTC for each of the five sectional steps.These IHTCs reached their peak before they began to decline. The peak rangeof IHTC incrementally increased with the section thickness, from the 3 mm ofstep 1 up to the 15 mm of step 5. Moreover, the rate at which the IHTCreached its peak and then stabilized at a low level was slower for stepswith greater thicknesses.</jats:p>

Topics

• surface
• aluminium
• steel
• casting
• one-dimensional