Methods to Measure Residual Stresses in 3D Printed Objects: A Review

Additive manufacturing is a rapidly growing manufacturing method used in manufacturing objects due to its accurate results and complex shapes can be made with precision. Residual stresses are the hazard to this technique which affects the mechanical properties and shape of the object that is why it is critical to measure the residual stress present in the AM part to increase the reliability of the object. These stresses can cause the strength failure and other associated failures of the object. Also if residual stresses are not removed from the object, the object is not balanced and can be fitted properly. This paper aims to put various methods in one place to measure residual stress in a 3D printed object.