%0 Journal Article %T 基于金属3D打印技术成形嵌套零件工艺研究 %A 李素丽 %A 魏正英 %A 杜军 %A 赵光喜 %A 王鑫 %A 刘伟 %A 卢秉恒 %J 材料科学与工业 %D 2016 %R 10.11951/j.issn.1005-0299.20160601 %X 针对传统采用多个零件拼接而成具有悬垂嵌套结构的零件,提出了金属均匀喷射熔滴沉积“双喷头”3D打印成形工艺,开发了金属微喷熔滴沉积成形试验平台,通过对新型支撑材料的配比和成形工艺研究,实现了金属以及支撑材料成形的联动控制,成形出较高精度悬垂嵌套的金属制件,与传统成形工艺相比,具有成形周期短,制造成本低等优点,实现了此类零件的即用即打,此类零件成形提供了实现的途径与条件.</br>According to the nested components jointed with multiple parts, a double-nozzle droplet deposition process was put forward in this paper, and the experimental system was developed. Through the research on the properties of support materials and the process of double-nozzle droplet deposition, the linkage control of the metal droplet deposition and the support material extrusion was realized, and a nested component with complex construction was fabricated directly. Compared with the traditional forming processes, this double-nozzle deposition process has the advantages of short cycle, low cost and so on. It can provide an approach way to build the nested parts. %K 双喷头 %K 悬垂嵌套 %K 金属熔滴 %K 支撑< %K /br> %K a %K double %K nozzle %K hanging %K nesting %K metal %K droplet %K support %U http://hit.alljournals.cn/mst_cn/ch/reader/view_abstract.aspx?file_no=20160601&flag=1