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A hybrid mixed double-sided incremental forming method for forming Ti6Al4V alloy

机译:Ti6Al4V合金的混合混合双面增量成型方法

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摘要

Incremental forming can be an alternative manufacturing means in producing biomedical parts characterized by the need of patient-specific geometry. A novel hybrid dieless sheet metal forming process, electrically-assisted mixed double-sided incremental forming (E-MDSIF), is proposed to manufacture difficult-to-form Ti6Al4V sheets. E-MDSIF is a spark-free technique shown to increase the formability and the geometric accuracy while decreasing the forming force. The effects of the electrical process on microstructure, micro-hardness and surface roughness of the formed parts are investigated. Additionally, comparisons between E-MDSIF and the conventional E-ISF processes are illustrated based on fundamental mechanics. Limitations and potential applications are presented. (C) 2016 CIRP.
机译:增量成型可以是生产以患者特定几何形状为特征的生物医学零件的替代制造方式。提出了一种新颖的混合无模钣金成形工艺,即电辅助混合双面增量成形(E-MDSIF),以制造难以成形的Ti6Al4V板。 E-MDSIF是一种无火花技术,可以提高可成形性和几何精度,同时减小成形力。研究了电工艺对成型零件的显微组织,显微硬度和表面粗糙度的影响。此外,基于基本原理说明了E-MDSIF与常规E-ISF工艺之间的比较。介绍了局限性和潜在的应用。 (C)2016 CIRP。

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