Thermal analysis of piston casting using 3-D finite element method

✍ Scribed by D. Robinson; R. Palaninathan

• Publisher: Elsevier Science
• Year: 2001
• Tongue: English
• Weight: 306 KB
• Volume: 37
• Category: Article
• ISSN: 0168-874X
• DOI: 10.1016/s0168-874x(00)00020-2

✦ Synopsis

This paper presents a "nite element modelling of metal solidi"cation, applied to an aluminum}silicon alloy piston casting. Earlier studies on solidi"cation have been mostly con"ned to one-and two-dimensional problems whereas the present one deals with 3-D castings. It is assumed that the heat transfer within the melt is by conduction and that from the melt/casting to the mold is by the interfacial heat transfer process. The air gap formed between the casting and the mold at interface a!ects the heat transfer rate. A "nite element formulation for the heat transfer through the air gap is presented for the 3-D problems. The same is applied to the speci"c case of piston solidi"cation. Temperature pro"les at di!erent time steps are presented. The time taken for completion of solidi"cation with respect to the process parameters are discussed.