|About this Abstract
||Liquid Metal Processing & Casting Conference (LMPC 2019)
||Liquid Metal Processing & Casting
||Ancillary Processes in Casting Manufacturing Introducing Risks in Production
||Oscar Caballero, Xabier Esquisabel
|On-Site Speaker (Planned)
Manufacturing of castings in the aerospace industry is tightly controlled. Process parameters are fixed and customers and producers agree not to modify them for the benefit of having stable processes that always achieve the same quality on products and do not introduce scatter in mechanical properties or other characteristics of the parts. However, manufacturing constraints and other needs make some changes happen during regular production. As long as the changes affect identified critical parameters, these are of course thoroughly assessed to evaluate their effect on the final parts. However, in some occasions, changes in ancillary processes that are not expected to have any influence or risk on the final parts are introduced with no further evaluation. Unfortunately, these assumptions are not always correct. The case of plasma torch cutting for removing gating system in castings is presented here. Changing the gas caused some trouble on the final parts.
||Definite: At-meeting proceedings