公开(公告)号：US06723278B1

公开(公告)日：2004-04-20

申请号：US09831340

申请日：2002-01-31

申请人： Li Lu ,  Jerry Ying Fuh ,  Yoke San Wong ,  Zhenda Chen ,  Gnian Cher Lim

发明人： Li Lu ,  Jerry Ying Fuh ,  Yoke San Wong ,  Zhenda Chen ,  Gnian Cher Lim

IPC分类号： B22F702

CPC分类号： B22F3/1055 ,  B22F2003/1052 ,  B22F2009/041 ,  B22F2998/10 ,  B33Y10/00 ,  B33Y40/00 ,  Y02P10/295 ,  B22F1/0003 ,  B22F9/04

摘要： This invention presents the process of direct laser casting of copper alloys: Cu—X (where X=Ni, Fe, W;) and their composites Cu—Y and Cu—X—Y (Y=WC, TiC, Ti+C) from powders prepared using mechanical mixing and ball milling processes. Since the metallic powder is combined with a low melting point Cu metal, which has good thermal and electrical conductivity, the combination allows the powder mixture to be melted by CO2 laser and re-solidified into a part with good mechanical properties and conductivity. The laser casting process for the Cu-based in-situ formation and the material systems formed using the said method have been developed. The process can be used to fabricate complex three-dimensional objects by multi-layer overlapping and the material systems can be used to build rapid tooling due to the properties of good thermal conductivity and low wear rate.

摘要翻译： 本发明提出了铜合金的直接激光铸造工艺：Cu-X（其中X = Ni，Fe，W）及其复合材料Cu-Y和Cu-XY（Y = WC，TiC，Ti + C） 使用机械混合和球磨工艺制备。 由于金属粉末与具有良好导热性和导电性的低熔点Cu金属组合，所以该组合允许粉末混合物通过CO 2激光熔化并再次固化成具有良好机械性能和导电性的部件。 已经开发了用于基于Cu的原位形成的激光铸造工艺和使用所述方法形成的材料体系。 该过程可用于通过多层重叠制造复杂的三维物体，并且由于具有良好导热性和低磨损率的特性，材料系统可用于构建快速加工。