TOWARDS THE MODELING OF FLUID-STRUCTURE INTERACTIVE LOST CORE DEFORMATION IN HIGH-PRESSURE DIE CASTING

摘要：

1 Introduction High-pressure die casting(HPDC) is an important process for manufacturing high volume and low cost automotive components,such as automatic transmission housings and gear box components 1,2.Liquid metal,generally aluminium or magnesium,is injected through complex gate and runner systems and into the die at high speed,typically between 50 and 100 ms-1,and under very high pressures up to 100 MPa.However,it has up to date proven difficult to employ lost salt cores within the process 3.The basic idea of using salt cores is to create undercuts or hollow sections with them,which may then later act as cooling or oil-flow channels 4,5,6.Given this process constraint in design freedom for the CAD-engineer,the idea of using salt as the material for lost cores has been put forward by machine manufacturers,as well as automotive companies 7,8.One way to determine whether this is indeed viable is to employ numerical simulation 9.

关键词： compressible two-phase flow fluid-structure interaction high-pressure die casting lost salt cores solver development experimental validation

作者: SEBASTIAN KOHLST(A)DT MICHAEL VYNNYCKY JAN J(A)CKEL LUDGER LOHRE

作者单位: KTH Royal Institute of Technology,Stockholm,Sweden Volkswagen AG-Division of components manufacturing,Baunatal,Germany

会议类型: 国际会议

会议名称: The 13th OpenFOAM Workshop(第13届OpenFOAM国际研讨会)

会议地点: 上海

会议语种:英文

页码: 217-221

在线出版日期: 2018-06-24（万方平台首次上网日期，不代表论文的发表时间）