2009Jan 14, 2010Borgwarner Inc.Method for rapid generation of multiple investment cast parts such as turbine or compressor wheels* Cited by examinerNon-Patent CitationsReference1Jurgen J. Maerz, Casting Tree Design and Investment Technique for Induction Platinum Casting, Internet source (http://www.platinumguild.com/output/page2414.asp , click on Casting Tree Design and Investment Technique for