公开(公告)号：US20140061167A1

公开(公告)日：2014-03-06

申请号：US14078910

申请日：2013-11-13

Applicant: Sciaky, Inc.

Inventor： Scott Stecker ,  Phillip Wollenhaupt

IPC: B23K9/04

CPC classification number: H01J37/304 ,  B22F3/1055 ,  B22F2003/1056 ,  B22F2998/00 ,  B23K9/042 ,  B23K15/0013 ,  B23K15/0086 ,  B33Y10/00 ,  B33Y50/02 ,  C22C14/00 ,  H01J37/3005 ,  H01J37/305 ,  Y02P10/295 ,  B22F3/003

Abstract: A process (and apparatus for performing the process) for layer manufacturing a three-dimensional work piece comprising the steps of: feeding raw material in a solid state to a first predetermined location; exposing the raw material to an electron beam to liquefy the raw material; depositing the raw material onto a substrate as a molten pool deposit, the deposit having a forward edge region in an x-y plane with a forward edge region width and a trailing edge region in the x-y plane with a trailing edge region width, under at least one first processing condition; monitoring the molten pool deposit for at least one preselected condition using detecting of scatter from a scanning electron beam contemporaneously with the depositing step; solidifying the molten pool deposit; automatically altering the first processing condition to a different processing condition based upon information obtained from the comparing step; and repeating steps at one or more second locations for building up layer by layer, generally along a z-axis that is orthogonal to the x-y plane, a three-dimensional work piece.

Abstract translation: 一种用于层压制造三维工件的方法（以及用于执行该方法的装置），包括以下步骤：将固体状态的原料供给到第一预定位置; 将原料暴露于电子束以使原料液化; 将原料沉积在基底上作为熔池沉积物，沉积物具有在xy平面中的前边缘区域，具有前边缘区域宽度和在xy平面中具有后缘区域宽度的后缘区域，在至少一个 第一处理条件; 使用与沉积步骤同时的扫描电子束的散射检测来监测熔池沉积物的至少一个预选条件; 凝固熔池沉积物; 基于从所述比较步骤获得的信息，自动地将所述第一处理条件改变为不同的处理条件; 并且在一个或多个第二位置重复步骤，以逐层建立，一般沿着与x-y平面正交的z轴，三维工件。