Industry
Study Compares Machinability of 316L Stainless Steel Made by Additive and Conventional Manufacturing
2026-09-25
A research team from VSB – Technical University of Ostrava in the Czech Republic published a paper in MDPI's Journal of Manufacturing and Materials Processing, comparing the machinability of 316L stainless steel produced by laser powder bed fusion (PBF-LB) additive manufacturing and conventional rolling under dry turning conditions. The study found that additive-manufactured specimens exhibited greater variability in machinability and higher sensitivity to cutting parameters; turning performance was worst at high feed rates, with PBF-LB specimens showing the highest cutting forces, greatest tool vibration, and roughest machined surfaces under high feed. The paper points out that the integration between additive and subtractive manufacturing (machining) remains a weak link—additive parts generally require post-processing finishing, and their machinability directly affects delivery cost and quality, which has practical significance for the industrialization of metal additive manufacturing.
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研究：增材与传统制造316L不锈钢切削加工性能对比
捷克 VSB 奥斯特拉瓦技术大学研究团队在 MDPI《Journal of Manufacturing and Materials Processing》发表论文，对比研究了激光粉末床熔融（PBF-LB）增材制造与传统轧制两种工艺生产的 316L 不锈钢在干式车削下的切削加工性能。 研究发现：增材制造试样的加工性能波动更大、对切削参数更敏感；高进给量下车削性能最差，其中 PBF-LB 试样在高进给下切削力与刀具振动最大、加工表面最粗糙。 论文指出增材制造与减材制造（机加工）的衔接仍是薄弱环节——增材零件普遍需要后处理精加工，其可加工性直接影响交付成本与质量，对金属增材走向量产具有现实意义。