Additive manufacturing of metals — Finished part properties — Orientation and location dependence of mechanical properties for metal powder bed fusion

Importancia y uso:

5.1 Although evaluation of mechanical properties of many additively manufactured materials can be conducted using the guidelines developed for conventional materials within existing testing standards, the coordinate systems and nomenclature specific to conventional materials testing (for example, in ASTM E399, ASTM E647, ISO 12108, and ISO 12135) are not sufficient to be applicable across the full spectrum of specimen/parts produced by metal AM without causing confusion. This document is based on the nomenclature and principles of ISO/ASTM 52921 and extends them specifically to metal AM. The application of this document is primarily intended to provide guidance on orientation designations in cases in which meaningful orientation/direction for AM cannot be obtained from available test methods.

5.2 It shall be understood that the interpretations and guidelines in this document do not alter the validity requirements of test methods nor can this document be used to change the designation of “invalid” data (that is according to test methods) to a “valid” condition. This document is primarily concerned with cases in which it is not possible or practical to obtain meaningful data based on orientation/direction designations that are currently covered in standards developed for conventionally processed materials.

Subcomité:

F42.01

Volúmen:

10.04

Número ICS:

25.030 (Additive manufacturing)

Palabras clave:

crack growth direction; fatigue crack growth; force-controlled fatigue; fracture toughness; metal additive manufacturing; part location; part orientation; part testing; small-scale testing; strain-controlled fatigue; tensile testing; test methods;