公开(公告)号：US20160001360A1

公开(公告)日：2016-01-07

申请号：US14729912

申请日：2015-06-03

Applicant: ROLLS-ROYCE PLC

Inventor： John Harold BOSWELL ,  Terence Ivan SIMPSON ,  Phillip John CROSBY

IPC: B22D27/04 ,  B22D25/06 ,  F01D5/14 ,  B22D25/02

CPC classification number: B22D27/045 ,  B22C9/04 ,  B22D25/02 ,  B22D25/06 ,  F01D5/141 ,  F05D2220/30 ,  F05D2230/21 ,  F05D2260/22141

Abstract: A method includes forming a mould, the mould having at least one mould portion defining the shape of an element to be removed from the component in a subsequent manufacturing step and having a reduced cross-sectional area. The at least one mould portion includes at least one recess which further reduces the cross sectional area of the cavity and increases the surface area of the at least one mould portion or the at least one mould portion includes a plurality of projections which increase the surface area of the least one mould portion thereby increasing radiative heat loss from said at least one mould portion during said process. A mould for use in this method and a turbine blade formed using this method, are also provided

Abstract translation: 一种方法包括形成模具，该模具具有至少一个模具部分，该模具部分在随后的制造步骤中限定要从组件移除的元件的形状，并具有减小的横截面积。 至少一个模具部分包括至少一个凹部，其进一步减小了空腔的横截面面积并且增加了至少一个模具部分的表面面积，或者至少一个模具部分包括多个凸起，这些凸起增加了表面积 的至少一个模具部分，从而在所述过程期间增加从所述至少一个模具部分的辐射热损失。 还提供了一种用于该方法的模具和使用该方法形成的涡轮叶片