Methods of crack mitigation for high-strength aluminum alloys made by additive manufacturing and high-strenth aluminum alloys made therefrom

Abstract

A method of mitigating crack formation in an article produced by additive manufacturing process is disclosed. The method utilizes Selective laser melting (SLM). The method contains the steps of utilizing a selective leaser melting (SLM) apparatus to produce a first layer of particles of a selected material on a substrate and melting and solidifying a first group of selected areas of the first layer of particles, wherein the melting and the solidification results in a pre-determined structure of the selected material; repeating utilization of SLM apparatus to produce second and subsequent layers as needed to produce layers of desired configurations to result in a predetermined scaffolding structure; and utilizing a selective leaser melting (SLM) apparatus to produce an article of specified thickness and shape on top of and in contact with the scaffolding structure. An article made by the method of this disclosure is described.

Dependencies are inferred from the claim text.