Numerical Simulation of Segregation in Injection Moulding of Cemented Carbide Powder AITranslate
Abstract AITranslate
The injection molding of cemented carbide powder has been numerically simulated by CFX software based on the two-fluid model, and the segregation during the PIM filling flow process has also been analyzed. The results show that the segregation is divided into the common segregation and boundary segregation. The common segregation is caused by the differences of density and viscosity between powder and binder. Because the density of binder is less than the powder, a light concentration of the binder around the jet mostly has been caused. Moreover, the effective viscosity of the binder is less than the powder, which causes the increase of the content of binder in the front. The boundary effect and the common segregation together caused the boundary segregation, which leads to the volume fraction of binder near the die wall more than its mean value. The results of the local density test have demonstrated the reliability of the numerical simulation of segregation based on the two-fluid model.
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1Rosof B H. The metal injection molding process comes of age[J]. J Mater,1989,41(8) : 13-16.
2German R M. Powder Injection Molding[M]. Princeton: Metal Powder Industries Federation,1990.
3柳葆生,Barriere T h,Gelin J C.金属注射成形的数值模拟和高效算法[J].中国机械工程,2002,13(22):1907-1910. 被引量：9
4Barriere T, Liu B,Gelin J C. Experimental and numerical analyses of powder segregation in metal injection mould ing[J]. Metal Powder Report,2002, (5) :30-33.
5Barriere T, Liu B, Gelin J C. Analyses of powder segregation in MIM[J]. Technical Trends,2002, (3) :30-33.
6Barriere T,Gelin J C, Liu B. Analysis of phasese gregation effects arising in fluid-particle flows during metal injection molding[J]. Int J of Forming Process, 2001,4 (3-4):199-216.
7Barriere T,Gelin J C,Liu B. Improving mould design and injection parameters in metal injection moulding by 3D finite element simulation[J]. J Mater Process Technol,2002,(2):518-524.
8Manninen M, Tavassalo V. On the mixture models for multiphase flow[M]. Espoo: VTT Publications, 1996.
9Kwon T H, Ahn S Y. Slip characterization of powder/ binder mixtures and its significance in the filling process analysis of powder injection molding[J]. Powder Technology, 1995,85:45-55.
10Novac O A,Anton D, Novac T. The rheological behavior of some binders and plastics used in injection molding[J]. Powder Metallurgy, 1994,94 : 113.
1侯宝峰,曲选辉,何新波,孙本双.SiC含量对注射成形SiC_p/Cu复合材料磨损性能的影响[J].机械工程材料,2010,34(12):67-69. 被引量：8
2何新波,方伟,许均力,贾成厂,曲选辉.工业CT在粉末注射成形中的应用[J].粉末冶金材料科学与工程,2011,16(3):418-424. 被引量：2
3郑洲顺,曲选辉,徐勤武,李俏杰,刘建康.粉末注射成形两相流动三维数值模拟及粉末与粘结剂的分离[J].中国有色金属学报,2014,24(1):122-129. 被引量：9
4谢兴铖,曹瑞军,李增德,周增林,李卿,李悦,贾斌.大长径比超细WC-Co圆棒PIM充模过程的数值模拟[J].稀有金属材料与工程,2021,50(1):160-166.
1李化强,乔斌,杨建明,陈华.粉末注射成形制备SiC_P/Cu复合材料及其摩擦磨损性能研究[J].热加工工艺,2012,41(16):103-105. 被引量：1
2杨建明,冯立超,尚峰,陈华.粉末注射成形SiC_P/Cu复合材料的显微组织和力学性能[J].热加工工艺,2012,41(24):128-130. 被引量：1
3王娜,贺毅强,杨建明,乔斌.粉末注射成形SiC_p/Cu复合材料的显微组织与力学性能[J].热加工工艺,2012,41(24):147-149.
4方伟,何新波,张瑞杰,章书周,曲选辉.粉末注射成形充模过程中粉体分布的数值模拟[J].粉末冶金材料科学与工程,2013,18(2):149-154. 被引量：8
5周海滨,姚萍屏,肖叶龙,张忠义,陈凌寒,贡太敏,赵林,左晓婷.SiC颗粒强化铜基粉末冶金摩擦材料的表面形貌特征及磨损机理[J].中国有色金属学报,2014,24(9):2272-2279. 被引量：32
6杨佼源,洪晓露,韦习成,王武荣,欧阳求保,顾海麟,冯奇.Al_2O_3连续增强铝基复合材料的干摩擦磨损特性[J].机械工程材料,2015,39(4):81-85.
7潘超梅,罗浩,刘建雄,曾克里.充模方式对金属粉末注射成形两相分离的影响[J].热加工工艺,2016,45(20):48-52. 被引量：1
8张磊,茅学志,陈国宏,张明,何新农,汤文明.液相烧结碳化硅陶瓷的摩擦磨损行为[J].理化检验：物理分册,2016,52(12):841-845. 被引量：2
9王胜民,赵晓军,何明奕.机械镀技术的现状及发展[J].材料导报,2017,31(5):117-122. 被引量：9
10潘超梅,刘建雄,周晚珠,曾克里.金属粉末颗粒形貌对注射成形喂料粘度的影响[J].热加工工艺,2017,46(6):63-66. 被引量：1
1王玉会,曲选辉,何新波,张勇,赵丽明.粉末注射成型过程的双流体数学模型[J].机械工程材料,2008,32(5):74-77. 被引量：7
2王玉会,曲选辉,何新波,张勇,林冰涛,藏若愚.粉末注射成形充模过程特有边界层效应的数值模拟[J].机械工程材料,2008,32(2):77-80. 被引量：4
3贺元.双流体模型在AOD熔池流场数学模拟中的应用[J].宝钢技术,2010,3(1):17-22.
4乐红胜,曲选辉.粉末注射成形计算机模拟基本原理[J].材料导报,1999,13(5):11-12.
5方伟,何新波,张瑞杰,章书周,曲选辉.粉末注射成形充模过程中粉体分布的数值模拟[J].粉末冶金材料科学与工程,2013,18(2):149-154. 被引量：8
6周继良,邹宗树,余艾冰.鼓泡流化床流动特性的数值模拟[J].材料与冶金学报,2007,6(2):126-129. 被引量：4
7王玉会,曲选辉,何新波.粉末注射成形多相流动过程数值模拟模型[J].北京科技大学学报,2007,29(7):717-720. 被引量：5
8郑洲顺,曲选辉,徐勤武,李俏杰,刘建康.粉末注射成形两相流动三维数值模拟及粉末与粘结剂的分离[J].中国有色金属学报,2014,24(1):122-129. 被引量：9
9孙会,张晓青,马雪芬.透气砖底吹铝熔体精炼过程中气液两相流场的数值模拟[J].上海电机学院学报,2011,14(4):233-236.
10周继良,邹宗树,余艾冰.流化床外型对内部流场影响的模拟研究[J].材料与冶金学报,2008,7(3):163-169. 被引量：2
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DOI：
Chinese Library Classification Number:TF124.39[冶金工程—粉末冶金]
Citation Information:
The injection molding of cemented carbide powder has been numerically simulated by CFX software based on the two-fluid model, and the segregation during the PIM filling flow process has also been analyzed. The results show that the segregation is divided into the common segregation and boundary segregation. The common segregation is caused by the differences of density and viscosity between powder and binder. Because the density of binder is less than the powder, a light concentration of the binder around the jet mostly has been caused. Moreover, the effective viscosity of the binder is less than the powder, which causes the increase of the content of binder in the front. The boundary effect and the common segregation together caused the boundary segregation, which leads to the volume fraction of binder near the die wall more than its mean value. The results of the local density test have demonstrated the reliability of the numerical simulation of segregation based on the two-fluid model.
quote
| GB/T 7714-2015 | [1] WANG Yu-hui, QU Xuan-hui, HE Xin-bo, et al. Numerical Simulation of Segregation in Injection Moulding of Cemented Carbide Powder[J]. Rare Metals and Cemented Carbides, 2008(2): 10-14. |
| MLA | [1] WANG Yu-hui, et al., "Numerical Simulation of Segregation in Injection Moulding of Cemented Carbide Powder." Rare Metals and Cemented Carbides, no. 2, 2008, pp. 10-14. |
| APA | [1] WANG Yu-hui, QU Xuan-hui, HE Xin-bo, ZHANG Yong, & ZHAO Li-ming. (2008). Numerical Simulation of Segregation in Injection Moulding of Cemented Carbide Powder. Rare Metals and Cemented Carbides(2), 10-14. |
| IEEE | [1] WANG Yu-hui, QU Xuan-hui, HE Xin-bo, ZHANG Yong, and ZHAO Li-ming, "Numerical Simulation of Segregation in Injection Moulding of Cemented Carbide Powder," Rare Metals and Cemented Carbides, no. 2, pp. 10-14, 2008. keywords: {powder injection molding;two-fluid model;numerical simulation;common segregation;boundary segregation} |