Study on shrinkage behaviour of direct laser sintering metallic powder

被引：74
|
作者：
Zhu, H. H.
Lu, L.
Fuh, J. Y. H.
机构：
[1] Huazhong Univ Sci & Technol, State Key Lab Laser Technol, Wuhan 430074, Peoples R China
[2] Natl Univ Singapore, Dept Mech Engn, Singapore 117548, Singapore
来源：
PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART B-JOURNAL OF ENGINEERING MANUFACTURE | 2006年 / 220卷 / 02期
关键词：
direct laser sintering; metallic powder; shrinkage behaviour; anisotropy;
D O I：
10.1243/095440505X32995
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The shrinkage behaviour caused in the direct laser sintering of Cu-based metal powder has been investigated. Shrinkages were observed to be anisotropic and the largest was found in the z (height) direction. The in-plane (x, y) dimensional changes are caused by a combination of three sources: thermal shrinkage, sintering shrinkage, and expansion arising because the metal particles fall during the sintering. A hypothetical two-dimensional model is proposed to explain the expansion phenomenon and the particle size ratio based on this model is also deduced. The experimental results agree well with the hypothesis.
引用
收藏
页码：183 / 190
页数：8
相关论文
共 50 条
  • [1] On the Use of Recycled Blended Metallic Powder in the Direct Metal Laser Sintering
    Singh R.
    Kumar S.
    Banwait S.S.
    Journal of The Institution of Engineers (India): Series C, 2024, 105 (05) : 1367 - 1372
  • [2] Simulation of microscopic shrinkage behaviour in sintering of powder compact
    Mori, K
    Ohashi, M
    Osakada, K
    INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES, 1998, 40 (10) : 989 - 999
  • [3] Simulation of microscopic shrinkage behaviour in sintering of powder compact
    Toyohashi Univ of Technology, Aichi, Japan
    Int J Mech Sci, 10 (989-999):
  • [4] Direct laser sintering of Cu-based metallic powder for injection moulding
    Zhu, HH
    Fuh, JYH
    Lu, L
    AMST 02: ADVANCED MANUFACTURING SYSTEMS AND TECHNOLOGY, PROCEEDINGS, 2002, (437): : 779 - 784
  • [5] Microstructuring by selective laser sintering of metallic powder
    Kathuria, YP
    SURFACE & COATINGS TECHNOLOGY, 1999, 116 : 643 - 647
  • [6] Direct laser sintering of metal powder
    Hornig, C
    Lohner, A
    KUNSTSTOFFE-PLAST EUROPE, 1997, 87 (11): : 1684 - 1685
  • [7] Influence of binder's liquid volume fraction on direct laser sintering of metallic powder
    Zhu, HH
    Lu, L
    Fuh, JYH
    MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2004, 371 (1-2): : 170 - 177
  • [8] Experimental study of the basic process mechanism for direct selective laser sintering of low-melting metallic powder
    Song, YA
    Koenig, W
    CIRP ANNALS 1997 MANUFACTURING TECHNOLOGY, VOLUME 46/1/1997: ANNALS OF THE INTERNATIONAL INSTITUTION FOR PRODUCTION ENGINEERING RESEARCH, 1997, 46 : 127 - 130
  • [9] Selective laser sintering of metallic powder for microfabrication technology
    Kathuria, YP
    MHS'97: PROCEEDINGS OF 1997 INTERNATIONAL SYMPOSIUM ON MICROMECHATRONICS AND HUMAN SCIENCE, 1997, : 41 - 47
  • [10] Optimization on selective fiber laser sintering of metallic powder
    Liao, Hsin-Te
    Trung, Le Manh
    ADVANCED MANUFACTURING TECHNOLOGY, PTS 1-4, 2012, 472-475 : 2519 - +
12345