Please wait a minute...
浙江大学学报(工学版)
JOURNAL OF ZHEJIANG UNIVERSITY (ENGINEERING SCIENCE)  2018, Vol. 52 Issue (1): 24-28    DOI: 10.3785/j.issn.1008-973X.2018.01.004
Mechanical and Energy Engineering     
Morphology analysis of thin-wallparts by metal fused-coating additive manufacturing
DU Jun, WANG Xin, REN Chuan-qi, BAI Hao
State Key Laboratory of Manufacturing System Engineering, Xi'an Jiaotong University, Xi'an 710049, China
Download:   PDF(3004KB) HTML
Export: BibTeX | EndNote (RIS)      

Abstract  

A novel method of metal fused-coating additive manufacturing (MFCAM) was proposed aiming at the high cost and low forming efficiency of the existing metal additive manufacturing equipment. Sn63-Pb37 alloy was used in this basic experiment, and the influences of flow rate, deposition speed and layer thickness on the surface morphology characteristics of multi-layer single pass specimen were analyzed. The surface quality of formed parts was improved through the analysis on these process parameters. The bonding state between layers of multi-layer single pass specimen was evaluated combined with waviness by using microscopic image observation. The forming efficiency can reach 50 mm3/s, and the arithmetical mean deviation of the cross-section profile is 0.944 8. The feasibility and efficiency of the MFCAM technology were verified.

Received: 03 November 2016      Published: 15 December 2017
CLC:  TG146  
  TH164  
Service
E-mail this article
Add to my bookshelf
Add to citation manager
E-mail Alert
RSS
Articles by authors
Cite this article:

DU Jun, WANG Xin, REN Chuan-qi, BAI Hao. Morphology analysis of thin-wallparts by metal fused-coating additive manufacturing. JOURNAL OF ZHEJIANG UNIVERSITY (ENGINEERING SCIENCE), 2018, 52(1): 24-28.

URL:

http://www.zjujournals.com/eng/10.3785/j.issn.1008-973X.2018.01.004     OR     http://www.zjujournals.com/eng/Y2018/V52/I1/24


金属熔融涂覆成形薄壁件表面形貌与工艺

针对现有金属增材制造设备昂贵、成形效率低等问题，提出金属熔融涂覆增材制造（MFCAM）.以锡铅合金为原料，开展基础工艺实验，研究流量、成形速度和层厚对多层单道成形件表面形貌特征的影响规律.通过统计分析影响因素，提高成形件表面质量，采用显微图像观察，结合波纹度对多层单道试件层间结合状态进行评估.研究结果表明，金属熔融涂覆增材制造成形效率为50 mm3/s，成形件表面波纹度的轮廓算术平均偏差为0.944 8，证明了MFCAM新工艺的可行性及高效性.

[1] BEAMAN J J, DECKARD C R. Selective laser sintering with assisted powder handling[P]. US 5053090, 1991.
[2] ARCELLA F G, FROES F H. Producing titanium aerospace components from powder using laser forming[J]. JOM, 2000, 52(5):28-30.
[3] CHALKER P, CLARE A, DAVIES S. Selective laser melting of high aspect ratio 3D nickel:titanium structures for MEMS applications[J]. International Journal of Mechanics and Materials in Design, 2008, 4(2):181-187.
[4] LU B, ZHAO W, TANG Y, et al. Investigation of the overlapping parameters of MPAW-based rapid prototyping[J]. Rapid Prototyping Journal, 2006, 12(3):165-172.
[5] XIONG J, ZHANG G, ZHANG W. Forming appearance analysis in multi-layer single-pass GMAW-based additive manufacturing[J]. The International Journal of Advanced Manufacturing Technology, 2015, 80(9):1767-1776.
[6] HERALIC A, CHRISTIANSSON A K, OTTOSSON M, et al. Increased stability in laser metal wire deposition through feedbackfrom optical measurements[J]. Optics and Lasers in Engineering, 2010, 48(4):478-485.
[7] XIONG J, ZHANG G. Adaptive control of deposited height in GMAW-based layer additive manufacturing[J]. Journal of Materials Processing Technology, 2014, 214(4):962-968.
[8] MIRELES J, ESPALIN D, ROBERSON D, et al. Fused deposition modeling of metals[C]//International SFF Symposium Held. Austin:[s.n.], 2012:836-845.
[9] SUI H M, BI G, FOLKES J, et al. Deposition of Ti-6Al-4V using a high power diode laser and wire, Part I:investigation on the process characteristics[J]. Surface and Coatings Technology, 2008, 202(16):3933-3939.
[10] TAMINGER M, ROBERT M, HAFLEY A, et al. Electron beam freeform fabrication for cost effective near-net shape manufacturing[J]. NATO AVT, 2006, 139:16-25.
[11] YAO Y, GAO S, CUI C. Rapid prototyping based on uniform droplet spraying[J]. Journal of Materials Processing Technology, 2004, 146(3):389-395.
[12] DU J, WEI Z, WANG X, et al. A novel high-efficiency methodology for metal additive manufacturing[J]. Applied Physics A, 2016, 122(11):945.
[1] CHEN Xin-Juan, HAO Zhi-Yong, YANG Chen. Experimental study on damping performance of magnesium alloy AZ31[J]. JOURNAL OF ZHEJIANG UNIVERSITY (ENGINEERING SCIENCE), 2010, 44(1): 19-22.