Deformation and Densification Laws of Powder Cold Forging

被引:0
|
作者
余世浩
机构
[1] China
[2] Wuhan 430070
[3] College of Material Science and Engineering Wuhan University of Technology
基金
中国国家自然科学基金;
关键词
powder cold-forging; fracture limit strain criterion; deformation law; densification mechanism;
D O I
暂无
中图分类号
TF124.38 [];
学科分类号
080502 ;
摘要
The deformation and densification laws of preform upsetting and closed-die forging were researched based on experimental results of cold forging of deoxidized Fe powder sintering porous material under different initial conditions such as friction factor, ratio between height and diameter and relative density. The fracture limit criterion for powder cold-forging upsetting and the limit strain curve were achieved. The effect of friction factor, ratio between height and diameter and relative density on fracture strain limitation was emphatically analyzed. The limit process parameter curves for the deformation of upsetting were also confirmed. Laws of deformation, densification and density distribution for closed-die forging of powder perform during cold-forging were further analyzed and discussed with the help of experimental phase analysis. As a result, this experiment established theoretical foundations for the design of preform and die as well as optimization of technological process parameters.
引用
收藏
页码:17 / 21
页数:5
相关论文
共 50 条
  • [31] A densification model for mixed metal powder under cold compaction
    Kim, KT
    Cho, JH
    INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES, 2001, 43 (12) : 2929 - 2946
  • [32] Densification behavior of iron powder during cold stepped compaction
    Kang, C. S.
    Lee, S. C.
    Kim, K. T.
    Rozenberg, O.
    MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2007, 452 : 359 - 366
  • [33] Densification behavior of nanocrystalline titania powder under cold compaction
    Lee, S. C.
    Kim, K. T.
    POWDER TECHNOLOGY, 2008, 186 (01) : 99 - 106
  • [34] Densification Behavior of Nanocrystalline Ceramic Powder under Cold Compaction
    Lee, SungChul
    Kim, KiTae
    TRANSACTIONS OF THE KOREAN SOCIETY OF MECHANICAL ENGINEERS A, 2006, 30 (10) : 1242 - 1248
  • [35] Microstructural evolution and densification behavior of high-Nb TiAl produced by powder forging
    Sun, Dingbang
    Wang, Huijun
    Wang, Yongsheng
    Guo, Yingchao
    Liang, Yongfeng
    Lin, Junpin
    MATERIALS CHARACTERIZATION, 2025, 219
  • [36] COLD-FORGING OF SINTERED IRON-POWDER PREFORMS
    SUTRADHAR, G
    JHA, AK
    KUMAR, S
    JOURNAL OF MATERIALS PROCESSING TECHNOLOGY, 1995, 51 (1-4) : 369 - 386
  • [37] Powder spreading, densification, and part deformation in binder jetting additive manufacturing
    Yousub Lee
    Peeyush Nandwana
    Srdjan Simunovic
    Progress in Additive Manufacturing, 2022, 7 : 111 - 125
  • [38] Cold Forging Deformation Analysis for Stainless Material using DEFORM
    Suthep, B.
    Uten, K.
    2015 IEEE INTERNATIONAL CONFERENCE ON INDUSTRIAL ENGINEERING AND ENGINEERING MANAGEMENT (IEEM), 2015, : 1277 - 1281
  • [39] Deformation characteristics and mechanisms of the cold rotary forging of a ring workpiece
    Han, X. H.
    Hua, L.
    JOURNAL OF STRAIN ANALYSIS FOR ENGINEERING DESIGN, 2010, 45 (02): : 97 - 114
  • [40] Powder spreading, densification, and part deformation in binder jetting additive manufacturing
    Lee, Yousub
    Nandwana, Peeyush
    Simunovic, Srdjan
    PROGRESS IN ADDITIVE MANUFACTURING, 2022, 7 (01) : 111 - 125