公开(公告)号：US20140367367A1

公开(公告)日：2014-12-18

申请号：US14290178

申请日：2014-05-29

申请人： ROLLS-ROYCE PLC

发明人： Scott David WOOD ,  Michael Lewis BLACKMORE ,  Iain TODD

IPC分类号： B23K15/00

CPC分类号： B23K15/0086 ,  B22F3/1055 ,  B22F5/009 ,  B22F2003/1058 ,  B23K15/0006 ,  B29C64/153 ,  B29C64/40 ,  Y02P10/295

摘要： An additive layer manufacturing method includes the steps of: a) laying down powder layer on powder bed, and b) focussing energy on an area of powder layer to fuse area of powder layer and thereby form a cross-section of the product; wherein steps a) and b) are repeated to form successive cross-sections of product, and wherein at least one of said steps b) involves focussing energy on an area of respective powder layer which is unsupported by a previously formed cross-section of product to thereby form a downwardly facing surface of product. Method is at least some of said successive steps b) involve focussing energy on a support area of respective powder layer, to fuse support area and thereby form successive cross-sections of a support pin within powder bed, support pin extending outwardly from downwardly facing surface of product when it is formed, so as to support downwardly facing surface.

摘要翻译： 一种添加剂层制造方法，包括以下步骤：a）在粉末床上放置粉末层，b）将粉末层上的能量聚焦在粉末层的区域上，以熔化粉末层的面积，从而形成产品的横截面; 其中重复步骤a）和b）以形成产物的连续横截面，并且其中所述步骤b）中的至少一个包括将能量聚焦在相应粉末层的不被先前形成的产品横截面无支撑的区域上 从而形成产品向下的表面。 方法是所述连续步骤中的至少一些步骤b）包括将能量聚焦在相应粉末层的支撑区域上，以熔化支撑区域，从而形成粉末床内的支撑销的连续横截面，从向下的表面向外延伸的支撑销 的产品，以便支撑向下的表面。