Additive manufacturing (AM) has transformed the manufacturing industries by providing numerous opportunities for rethinking and remodeling existing systems. Complex fabrication, rapid prototyping, reduced cost of pre-production tools, and customizations are the main features of this technique. Although, the proper and deep understanding of process parameters is required because it significantly influences the microstructure, mechanical properties, and dimensional accuracy of components. In this work, the design-for-metrology (DFM) approach is used to check the dimensional deviations of 316L stainless steel (SS) samples manufactured via selective laser melting (SLM) process. Laser power, scan speed, layer thickness, and hatch spacing are the chosen parameters to check their influence on fabricated parts. The geometric feature such as height, diameter, and cylindricity of samples was measured by a coordinate measuring machine (CMM). The uncertainty of measurement in geometric features is evaluated by the law of propagation of uncertainty (LPU) method. The result shows that dimensional deviation is more at high energy density. Also, the dimensional deviation is not that high for selected geometric features, which shows that the SLM process has good dimensional accuracy.

增材制造 (AM) 为重新思考和改造现有系统提供了大量机会，从而改变了制造业。复杂的制造、快速原型制作、降低预生产工具的成本以及定制是该技术的主要特点。虽然，需要对工艺参数进行正确和深入的理解，因为它会显着影响部件的微观结构、机械性能和尺寸精度。在这项工作中，计量设计 (DFM) 方法用于检查通过选择性激光熔化 (SLM) 工艺制造的 316L 不锈钢 (SS) 样品的尺寸偏差。激光功率、扫描速度、层厚和影线间距是选择的参数来检查它们对制造零件的影响。高度等几何特征，通过坐标测量机（CMM）测量样品的直径和圆柱度。几何特征中测量的不确定性是通过不确定性传播定律（LPU）方法来评估的。结果表明，在高能量密度下尺寸偏差更大。此外，所选几何特征的尺寸偏差并不高，这表明 SLM 工艺具有良好的尺寸精度。