Joseph Betts , Sarah Glanvill , Alborz Shokrani (2)
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引用次数: 0
摘要
快速成型制造（AM）可用于生产近净成形的铬镍铁合金 718 零件，从而最大限度地减少零件制造所需的材料消耗和机械加工。与锻造的 Inconel 718 相比，AM 工艺具有某些固有的特点。这些特点包括在构建方向上的细长微结构晶粒、集肤效应以及在热处理前进行半精加工的可能性。微划痕和端面铣削测试用于研究这些 AM 特性对加工性能的影响，并与锻造合金进行比较。分析表明，方向性、趋肤效应和热处理会影响材料内的切削力和刀具磨损。使用润滑剂可以最大限度地减少这些变化。
Impact of directionality and heat treatment on machining of additively manufactured Inconel 718
Additive manufacturing (AM) can be used to produce near-net-shape Inconel 718 parts to minimise the material consumption and the machining required for fabricating parts. Compared to wrought Inconel 718, there are certain characteristics inherent to AM process. These are elongated microstructural grains in the build direction, skin effect and the possibility of semi-finish machining prior to heat treatment. Micro-scratch and end milling tests were used to investigate the impact of these AM specific characteristics on machining performance and compare it with wrought alloy. The analysis demonstrated that directionality, skin effect and heat treatment affect cutting forces and tool wear within the material. Using lubrication can minimise these variations.
期刊介绍：
CIRP, The International Academy for Production Engineering, was founded in 1951 to promote, by scientific research, the development of all aspects of manufacturing technology covering the optimization, control and management of processes, machines and systems.
This biannual ISI cited journal contains approximately 140 refereed technical and keynote papers. Subject areas covered include:
Assembly, Cutting, Design, Electro-Physical and Chemical Processes, Forming, Abrasive processes, Surfaces, Machines, Production Systems and Organizations, Precision Engineering and Metrology, Life-Cycle Engineering, Microsystems Technology (MST), Nanotechnology.
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