Analytical Strength Assessment of Components Made of Sintered Steels

Recently Released

Herausgeber FKM

The FKM Guideline “Analytical Strength Assessment of Components Made of Sintered Steels” is the first publicly available, engineer ready design rule dedicated to pressed and sintered steels. It is fully aligned with the established FKM framework for local, elastic stress assessment. It closes a long-standing gap: while wrought and cast steels are well covered, powder metallurgy (PM) components have lacked a coherent, validated assessment method.

The guideline enables reliable static and fatigue verification using only two material inputs: Vickers hardness (HV10) and density. From these values, all necessary properties and influence factors are derived so that the degree of utilization for static and fatigue strength can be evaluated. In addition to hardness and density, the method requires only a linear elastic finite element analysis to obtain local principal or von Mises stresses and their distribution.

The assessment approach is grounded in an exceptional database – over 22,000 fatigue data points and 64 × 2 static tests – covering 12 widely used sintered steel families and 35 specimen geometries. This breadth supports confident application across typical hardness and density ranges and complex local stress states.

Engineers benefit from minimal inputs, fast FE based workflows, reduced testing effort, and consistent, traceable decisions. The guideline is ideal for automotive and machinery applications, integrates seamlessly with existing CAE processes, and helps avoid overdesign while safeguarding durability. In short, it turns PM component design into a data guided, efficient, and robust process.

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