气压与螺杆挤出复合型陶瓷无模直写系统开发
|
摘要
针对90%以上的高固相质量分数陶瓷流体无模直写成型难的问题,对增材制造在陶瓷无模直写中的研究应用进展进行了归纳,对高固相质量分数的陶瓷流体的流变特性、挤出螺杆的结构设计等方面进行了理论分析,提出了一种气压与螺杆挤出复合型陶瓷无模直写系统。首先,根据非牛顿流体的流变特性,设计旋转螺杆提供向下推力,并可实现流体搅拌,去除了陶瓷流体内气泡的同时使其保持均匀;其次,根据增材制造的技术原理,完成了直写成型系统软件和硬件的开发,并搭建了直写成型平台;最后,对陶瓷无模直写成型中的木堆结构进行了打印测试。研究结果表明:所开发的直写系统能够实现高固相质量分数陶瓷流体的直写成型。
Aiming at solving the problem of direct ink writing of high solid fraction ceramic fluid above 90%,the progress of research and application of additive manufacturing in direct ink writing of ceramic was summarized. The rheological properties of ceramic fluid with high solid fraction and the structural design of extrusion screw were analyzed theoretically,the pressure and screw extrusion composite ceramic direct ink writing systemwas proposed. First of all,according to the non-Newtonian fluid rheological properties,the rotary screw was designed to provide the downward thrust and realize the fluid agitation,the bubbles in the cylinder also can be removed. Secondly,according to the technical principle of direct ink writing,a direct ink writing platform was set up. In the end,direct ink writing test was carried out on the high solid fraction ceramic fluid by using the direct ink writing platform. The results indicate that the direct ink writing system can realize direct ink writing of high solid fraction ceramic fluid.
Aiming at solving the problem of direct ink writing of high solid fraction ceramic fluid above 90%,the progress of research and application of additive manufacturing in direct ink writing of ceramic was summarized. The rheological properties of ceramic fluid with high solid fraction and the structural design of extrusion screw were analyzed theoretically,the pressure and screw extrusion composite ceramic direct ink writing systemwas proposed. First of all,according to the non-Newtonian fluid rheological properties,the rotary screw was designed to provide the downward thrust and realize the fluid agitation,the bubbles in the cylinder also can be removed. Secondly,according to the technical principle of direct ink writing,a direct ink writing platform was set up. In the end,direct ink writing test was carried out on the high solid fraction ceramic fluid by using the direct ink writing platform. The results indicate that the direct ink writing system can realize direct ink writing of high solid fraction ceramic fluid.
引文
[1] LEWIS J A,GRATSON G M. Direct writing in three dimensions[J]. Materials Today,2004,7(7):32-39.
[2] SMAY J E,GRATSON G M,SHEPHERD R F,et al. Directed colloidal assembly of 3D periodic structures[J]. Advanced Materials,2002,14(18):1279-1283.
[3] LI Q,LEWIS J A. Nanoparticle inks for directed assembly of three-dimensional periodic structures[J]. Advanced Materials,2003,15(19):1639-1643.
[4]李亚运,司云晖,熊信柏,等.陶瓷3D打印技术的研究与进展[J].硅酸盐学报,2017,45(6):793-805.
[5] GRATSON G M,GARC A-SANTAMAR A F,LOUSSE V,et al. Direct-write assembly of three-dimensional photonic crystals:conversion of polymer scaffolds to silicon hollowwoodpile structures[J]. Advanced Materials,2006,18(4):461-465.
[6]何博,潘宇飞,陆敏.石墨烯基储能材料的增材制造研究进展[J].材料导报,2017,31(13):126-130,137.
[7]梁栋,何汝杰,方岱宁.陶瓷材料与结构增材制造技术研究现状[J].现代技术陶瓷,2017,38(4):231-247.
[8]章宝华.流体力学[M].北京:北京大学出版社,2006.
[9]江朋.粘度和间隙对精密螺杆泵点胶胶量影响规律研究[D].长沙:中南大学机电工程学院,2008.
[10]赵强. 3D打印机挤出头螺旋输送螺杆设计[J].科技与创新,2017(11):121-126.
[11]杨磊,马睿,黄部东,等. FDM 3D打印挤出螺杆设计及应用研究[J].铸造设备与工艺,2017(3):8-10,5.
[12]孔楚海.一种气动活塞式3D巧克力打印头设计[J].包装与食品机械,2017(4):51-54.
[13]王小锋,孙月花,彭超群,等.直写成型用悬浮液的设计[J].无机材料学报,2015,30(11):1139-1147.
[14]孙月花,彭超群,王小锋,等.直写成型技术:一种新型微纳尺度三维结构的制备方法[J].中国有色金属学报,2015,25(6):1525-37.
[2] SMAY J E,GRATSON G M,SHEPHERD R F,et al. Directed colloidal assembly of 3D periodic structures[J]. Advanced Materials,2002,14(18):1279-1283.
[3] LI Q,LEWIS J A. Nanoparticle inks for directed assembly of three-dimensional periodic structures[J]. Advanced Materials,2003,15(19):1639-1643.
[4]李亚运,司云晖,熊信柏,等.陶瓷3D打印技术的研究与进展[J].硅酸盐学报,2017,45(6):793-805.
[5] GRATSON G M,GARC A-SANTAMAR A F,LOUSSE V,et al. Direct-write assembly of three-dimensional photonic crystals:conversion of polymer scaffolds to silicon hollowwoodpile structures[J]. Advanced Materials,2006,18(4):461-465.
[6]何博,潘宇飞,陆敏.石墨烯基储能材料的增材制造研究进展[J].材料导报,2017,31(13):126-130,137.
[7]梁栋,何汝杰,方岱宁.陶瓷材料与结构增材制造技术研究现状[J].现代技术陶瓷,2017,38(4):231-247.
[8]章宝华.流体力学[M].北京:北京大学出版社,2006.
[9]江朋.粘度和间隙对精密螺杆泵点胶胶量影响规律研究[D].长沙:中南大学机电工程学院,2008.
[10]赵强. 3D打印机挤出头螺旋输送螺杆设计[J].科技与创新,2017(11):121-126.
[11]杨磊,马睿,黄部东,等. FDM 3D打印挤出螺杆设计及应用研究[J].铸造设备与工艺,2017(3):8-10,5.
[12]孔楚海.一种气动活塞式3D巧克力打印头设计[J].包装与食品机械,2017(4):51-54.
[13]王小锋,孙月花,彭超群,等.直写成型用悬浮液的设计[J].无机材料学报,2015,30(11):1139-1147.
[14]孙月花,彭超群,王小锋,等.直写成型技术:一种新型微纳尺度三维结构的制备方法[J].中国有色金属学报,2015,25(6):1525-37.