Skip to main content
Article thumbnail
Location of Repository

Warm compaction of aluminium alloy Alumix 123

By Lubos Meluch


The aims of this study were to understand and improve the mechanical properties of aluminium Al-Cu-Si-Mg P/M alloy Alumix 123 by application of a warm compaction process. They were achieved by investigating the effect of (a) compaction pressure/temperature, (b) admixed lubricants (e.g. Acrawax C and Kenolube P11) on green/sintered density and mechanical properties of compacts. It was found that compaction at 110ºC led to (1) a reduction in the ejection force up to ~ 40 % and (2) an increase in sintered density up to ~ 98 % of theoretical density. After heat treatment at 200ºC for 5 hours (T6), the tensile strength reached ~ 365 MPa and hardness of ~ 126 HV was achieved. Further improvement of mechanical properties of aluminium alloy Alumix 123 can be achieved by reducing the amount of admixed lubricant to 0.5 wt %, and using Acrawax C as the lubricant rather than Kenolube P11. Taguchi analysis was used to identify which parameter (compaction pressure, temperature and lubricant content) affected the densities and mechanical properties of Alumix 123 specimens with single lubricants the most. It was observed that the most effective parameter in warm compaction of Alumix 123 specimens is the lubricant content

Topics: TN Mining engineering. Metallurgy
Year: 2010
OAI identifier:

Suggested articles


  1. (1962). A Practical Course in Powder
  2. (2000). Efficiently optimizing manufacturing processes using interactive Taguchi analysis,
  3. (2004). Encyclopedia of the Elements, Technical Data History Processing Applications, doi
  4. (1993). Introduction to Powder Metallurgy, doi
  5. (2005). Metal Powders A Global Survey of Production, Applications and Markets to 2010, Fourth Edition,
  6. (1990). Powder Metallurgy: The Process and its Products, doi
  7. Single Compaction to Achieve High Density

To submit an update or takedown request for this paper, please submit an Update/Correction/Removal Request.