This paper is concerned with understanding the role of specific energy in micro-grinding of conventional and additively manufactured Ti6Al4V. The effects of grinding and dressing parameters, cooling-lubrication conditions, and the directions of material build-up are studied. It is demonstrated that the minimum specific energy in single grain tests is independent of the material-fabrication method. The lowest measured specific energy obtained is 11.5 J/mm³ for both workpiece materials. The direction of material build-up influenced the process only when grinding with low aggressiveness, where 20% higher specific energy was observed. Similar specific energies were obtained for oil-lubricated and dry conditions, indicating that lubrication had minimal effect. The effects of the diamond concentration in the wheel and the dressing parameters were also investigated. Comparable specific energies were observed for wheels with C150 and C200 concentrations. The specific energy was found being predominantly influenced by dressing. Coarse dressing conditions produced 18% lower specific energy and, therefore, a more efficient micro-grinding process.

本文关注的是了解比能在常规和增材制造的Ti6Al4V的微粉碎中的作用。研究了磨削和修整参数，冷却润滑条件以及材料堆积方向的影响。结果表明，单晶测试中的最小比能与材料制造方法无关。测得的最低比能量为11.5 J / mm ³适用于两种工件材料。材料堆积的方向仅在以低侵蚀性进行研磨时才影响该过程，在该研磨中观察到比能高出20％。对于油润滑和干燥条件，获得了相似的比能，表明润滑作用最小。还研究了砂轮中金刚石浓度和修整参数的影响。对于浓度为C150和C200的车轮，观察到了可比的比能。发现比能主要受敷料影响。粗修整条件可降低18％的比能，因此可实现更高效的微粉碎工艺。