本文件提供了国际上对激光束熔炼铝合金时优化支撑结构的相互理解。它提供了缺失的设计指南，用于为不同的用例选择适当的支持类型。因此，针对不同的目标图形，总共选择了五种不同的支撑类型，并对其进行了表征:材料消耗、支架本身的可移动性和抗拉强度，以及表面对支撑件尺寸精度的影响。此外，新型仿生支架的材料消耗和可移动性也得到了开发和测试，显示出进一步优化的巨大潜力。充分应用支架可防止制造作业失败，从而提高生产率，是确保可复制零件质量的关键因素之一。考虑到材料消耗和可移动性，新型仿生支撑结构显示出良好的效果。

This document provides a mutual international understanding of optimized support structures in the laser beam melting of Al alloys. It provides the missing design guidelines for the choice of adequate support types for different use cases. Therefore, five different support types in total have been chosen and characterized regarding various target figures: Material consumption, removability and tensile strength of the supports themselves, as well as surface influence on and dimensional accuracy of the supported part. Additionally, novel biomimetic support types have been developed and tested for material consumption and removability, showing great potential for further optimization. Adequate application of supports increases the productivity by preventing build job failures and is one key factor to ensure a reproducible part quality. The novel biomimetic support structures show promising results considering material consumption and removability.