Paper Title:
Binder System for Coarse Powders Processed by Metal Injection Molding (MIM)
  Abstract

Research on determined alloys produced by metal injection molding has been done for cost reduction purposes through the use of powders with bigger particle size. However, regarding feedstock homogeneity, certain limitations are presented when coarse particles are used. For instance, homogeneity strongly influences rheological behavior of the feedstock and dimensional control of the sintered part. Therefore, the purpose of this work was to evaluate effectiveness of a modified binder system with the addition of a surfactant polymer which makes the feedstock more homogeneous. This study was carried out on a FeNiP alloy currently processed by MIM, where 50%wt of the iron powder was replaced with course powder having a particle size distribution of D90 less than 47 ,m. Effectiveness of binder systems using a Melt Flow Index (MFI) and the behavior of dimensional accuracy at sintered part were analyzed. Results showed more feedstock homogeneity and less dimensional deviation when a surfactant agent was used.

  Info
Periodical
Materials Science Forum (Volumes 591-593)
Edited by
Lucio Salgado and Francisco Ambrozio Filho
Pages
169-173
DOI
10.4028/www.scientific.net/MSF.591-593.169
Citation
A.P.G. Nogueira, R. Machado, P. A.P. Wendhausen, D. F. Portaluppi, "Binder System for Coarse Powders Processed by Metal Injection Molding (MIM)", Materials Science Forum, Vols. 591-593, pp. 169-173, 2008
Online since
August 2008
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
Authors: Muhammad Jabir bin Suleiman @ Ahmad, Noorsyakirah binti Abdulah, Mohamad Afian bin Omar, Nurazilah binti Mohd Zainon, Ahmad Aswad bin Mahaidin, Mohamad Afiq bin Nurul Hadi, Mazlan bin Mohamad
Chapter 5: Metals, Alloys and Processing Technologies for Mechanical Engineering
Abstract:MIM technique is described in which allows for the production of highly porous metallic foams with porosity levels up to 90%. It makes use of...
329