公开(公告)号：US20160138912A1

公开(公告)日：2016-05-19

申请号：US14547308

申请日：2014-11-19

Applicant: GM Global Technology Operations LLC

Inventor： Qigui Wang ,  Bing Li ,  Cherng-Chi Chang ,  Wenying Yang ,  Michael J. McCreedy

IPC: G01B21/08

CPC classification number: C22C21/02 ,  B22D11/006 ,  G01N2223/628 ,  G06F17/5018

Abstract: A method, device and article of manufacture for determining properties in a high pressure die cast component. Upon receipt of geometric information that corresponds to a location of interest within the component, a ray-triangle intersection relationship is used to calculate a wall thickness of the location of interest; this relationship is simplified by being used in conjunction with an octree-based relationship. One or more calculations are performed to determine a skin thickness based on the calculated wall thickness, and the skin thickness calculations are based on at least one of a logarithmic relationship, a polynomial relationship and a power law relationship. Changes in component shape or size may be taken into consideration to adjust the remaining skin layer thickness, such as that when the as-cast component is exposed to subsequent machining or related post-casting operations. From this, the properties are mapped to allow node-by-node variations in mechanical properties based on whether the node resides in the component skin region or core region.

Abstract translation: 一种用于确定高压压铸件中的特性的方法，装置和制品。 在接收到与组件内的感兴趣位置相对应的几何信息时，使用射线 - 三角形相交关系来计算感兴趣位置的壁厚; 这种关系通过与基于八叉树的关系结合使用来简化。 执行一个或多个计算以基于所计算的壁厚来确定皮肤厚度，并且皮肤厚度计算基于对数关系，多项式关系和幂律关系中的至少一个。 可以考虑组件形状或尺寸的变化来调节剩余的表层厚度，例如当铸态组件暴露于随后的加工或相关后铸造操作时。 从此，映射属性以允许基于节点驻留在组件皮肤区域或核心区域中的逐个节点机械属性的变化。

公开(公告)号：US10344358B2

公开(公告)日：2019-07-09

申请号：US14547308

申请日：2014-11-19

Applicant: GM Global Technology Operations LLC

Inventor： Qigui Wang ,  Bing Li ,  Cherng-Chi Chang ,  Wenying Yang ,  Michael J. McCreedy

IPC: C22C21/02 ,  G06F17/50 ,  B22D11/00

Abstract: A method, device and article of manufacture for determining properties in a high pressure die cast component. Upon receipt of geometric information that corresponds to a location of interest within the component, a ray-triangle intersection relationship is used to calculate a wall thickness of the location of interest; this relationship is simplified by being used in conjunction with an octree-based relationship. One or more calculations are performed to determine a skin thickness based on the calculated wall thickness, and the skin thickness calculations are based on at least one of a logarithmic relationship, a polynomial relationship and a power law relationship. Changes in component shape or size may be taken into consideration to adjust the remaining skin layer thickness, such as that when the as-cast component is exposed to subsequent machining or related post-casting operations. From this, the properties are mapped to allow node-by-node variations in mechanical properties based on whether the node resides in the component skin region or core region.