激光和电子束粉末床聚变（PBF）加性制造（AM）技术已经从原型和工具过渡到医学和航空航天等高要求领域的生产组件。其中一些组件的几何图形只能使用AM制作。初始应用要么利用金属PBF零件相对较高的表面粗糙度，要么在疲劳、腐蚀或流动环境中使用，在这些环境中，表面粗糙度不会造成性能损失。为了达到更高的性能水平，激光和电子束PBF组件的表面需要比当前的印刷表面更平滑。这也必须在不显著增加最终组件成本的情况下，在越来越复杂的几何形状上实现。 关于移动性行业中金属粉末层熔合零件的表面处理的未解决的话题解决了该技术的挑战和机遇，以及该行业尚待达成的一致意见。

Laser and electron-beam powder bed fusion (PBF) additive manufacturing (AM) technology has transitioned from prototypes and tooling to production components in demanding fields such as medicine and aerospace. Some of these components have geometries that can only be made using AM.Initial applications either take advantage of the relatively high surface roughness of metal PBF parts, or they are in fatigue, corrosion, or flow environments where surface roughness does not impose performance penalties. To move to the next levels of performance, the surfaces of laser and electron-beam PBF components will need to be smoother than the current as-printed surfaces. This will also have to be achieve on increasingly more complex geometries without significantly increasing the cost of the final component.Unsettled Topics on Surface Finishing of Metallic Powder Bed Fusion Parts in the Mobility Industry addresses the challenges and opportunities of this technology, and what remains to be agreed upon by the industry.