Melting process and mechanics on laser sintering of single layer polyamide 6 powder

被引：0
|
作者：
机构：
[1] Zhou, Wenxiao
[2] Wang, Xiang
[3] Hu, Jiangbo
[4] Zhu, Xuelin
来源：
Wang, X. (wxyf@ustc.edu.cn) | 1600年 / Springer London卷 / 69期
关键词：
In this paper; polyamide 6 single layer laser sintering process was investigated. A moving volumetric heat source model that involves the energy function morphology was simulated; and the temperature field distribution of a single layer of polyamide 6 powder was investigated using the finite element method; with different scan space and preheating temperature. The sintering processes were conducted on several batch of single layer with original thickness of 0.5 mm; which consists of 80 mesh polyamide 6 powders. Then the percentage of porosity was calculated and tensile stress of was tested. The results indicate that the scanning space strongly affect the percentage of porosity. For example; the percentage of porosity reaches 45.1 % when the scanning space increases from 0.25 to 0.45 mm. The results also indicate that the preheating and holding temperature strongly affect the mechanical properties. For example; the max tensile test stress increased from 2.04 to 4.10 MPa when the temperature rises from 50 to 150 C; while the percentage of porosity shows very limited shift; reducing by only 9.54 %. © 2013 Springer-Verlag London;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Journal article (JA)
引用
收藏
页码：1 / 4
相关论文
共 50 条
  • [21] Influence of Silicon Carbide on Direct Powder Bed Selective Laser Process (Sintering/Melting) of Alumina
    Ur Rehman, Asif
    Saleem, Muhammad Ahsan
    Liu, Tingting
    Zhang, Kai
    Pitir, Fatih
    Salamci, Metin Uymaz
    MATERIALS, 2022, 15 (02)
  • [22] Numerical simulation of two-dimensional melting and resolidification of a two-component metal powder layer in selective laser sintering process
    Cheng, TB
    Zhang, YW
    NUMERICAL HEAT TRANSFER PART A-APPLICATIONS, 2004, 46 (07) : 633 - 649
  • [23] Partial melting and resolidification of metal powder in selective laser sintering
    Xiao, Bin
    Zhang, Yuwen
    JOURNAL OF THERMOPHYSICS AND HEAT TRANSFER, 2006, 20 (03) : 439 - 448
  • [24] Research on Laser Melting Powder Layer Shrinkage Process Based on Moving Mesh Technology
    Tang, Xianjun
    Shu, Yufeng
    Applied Mathematics and Nonlinear Sciences, 2024, 9 (01)
  • [25] Study on the process of selective laser powder sintering
    Pei, HD
    Zu, J
    Chen, H
    ISTM/2005: 6th International Symposium on Test and Measurement, Vols 1-9, Conference Proceedings, 2005, : 3420 - 3422
  • [26] Simulation of temperature distribution in single metallic powder layer for laser micro-sintering
    Yin, Jie
    Zhu, Haihong
    Ke, Linda
    Lei, Wenjuan
    Dai, Cheng
    Zuo, Duluo
    COMPUTATIONAL MATERIALS SCIENCE, 2012, 53 (01) : 333 - 339
  • [27] Recycling of polyamide 12 based powders in the laser sintering process
    Dotchev, Krassimir
    Yusoff, Wan
    RAPID PROTOTYPING JOURNAL, 2009, 15 (03) : 192 - 203
  • [28] Optimization of powder layer density in selective laser sintering
    Karapatis, NP
    Egger, G
    Gygax, PE
    Glardon, R
    SOLID FREEFORM FABRICATION PROCEEDINGS, AUGUST 1999, 1999, : 255 - 263
  • [29] Single track and single layer melting of silica by Selective Laser Melting
    Yap, C. Y.
    Chua, C. K.
    Dong, Z.
    Liu, Z. H.
    Zhang, D. Q.
    HIGH VALUE MANUFACTURING: ADVANCED RESEARCH IN VIRTUAL AND RAPID PROTOTYPING, 2014, : 261 - 265
  • [30] Effect of dendritic copper powder addition to polyamide 12 in selective laser sintering
    Bekem, Aylin
    Ozbay, Burcin
    Bulduk, Mustafa Enes
    JOURNAL OF THE FACULTY OF ENGINEERING AND ARCHITECTURE OF GAZI UNIVERSITY, 2021, 36 (01): : 421 - 431
12345