Paper Title:
Study of Metal Powder Extrusion and Accumulating Rapid Prototyping
  Abstract

A new method, namely Metal Powder Extrusion & Stacking Modeling is proposed in this paper based on RP and Metal Injection Molding (MIM) principle. Stainless steel powder and thermoplastic paraffin wax-based binder are used in our experiment. Firstly, feedstock is generated by mixing power and binder in a rotor internal mixer. Then the granular feedstock is put into screw-extruder devices to extruded filament, and accumulating green part at atmospheric status. Finally, green part is thermal defatted and sintered in hydrogen atmosphere to product the sintered parts. The testing results are as follows. The density of our RP product is 73.75%. The average shrinkage rate is 7.51%, 18.00%, and 29.31%, for diameter, thickness and volume respectively. Brinell hardness is HB77.52, while bending strength is 457MPa and tensile strength is 163Mpa. The experimental results verify that our proposed method is promising.

  Info
Periodical
Edited by
Jun Wang,Philip Mathew, Xiaoping Li, Chuanzhen Huang and Hongtao Zhu
Pages
81-86
DOI
10.4028/www.scientific.net/KEM.443.81
Citation
J. B. Li, Z. G. Xie, X. H. Zhang, Q. G. Zeng, H. J. Liu, "Study of Metal Powder Extrusion and Accumulating Rapid Prototyping", Key Engineering Materials, Vol. 443, pp. 81-86, 2010
Online since
June 2010
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Muhammad Aslam, Faiz Ahmad, P.S.M. Bm-Yousoff, Khurram Altaf, Afian Omar, Muhammad Rafi Raza
Chapter 5: Metals, Alloys and Processing Technologies for Mechanical Engineering
Abstract:Optimization of solvent debinding process parameters for powder injection molded 316L stainless steel (SS) has been reported in this research...
324