Manufacturing Methods for High Density Powdered Metal (PM) Applications and Their Effect on Mechanical Properties

摘要

Increasing density is the most fundamental way to increase strength and to improve mechanical performance for powdered metal (PM) components. Advanced lubricant systems with warm die compaction or warm compaction and double press-double sintering (DPDS) methods are all proven compaction techniques used to achieve high density. High temperature sintering is also an alternative method to increase the final sintered density of a component. While these techniques are all capable of achieving high densities, questions remain whether the method used to reach a desired density has an influence on final sintered properties. In this paper, different methods of achieving high sintered densities were used to evaluate their effect on mechanical properties of a FLN2-4405 material.