This paper describes magnetic field-assisted single-point incremental forming (M-SPIF) with a Nd-Fe-B magnet ball tool. In M-SPIF, the tool driven by magnetic force plastically deforms a sheet. The polarity of the magnet tool helps to make the magnetic force (i.e., forming force) more controllable. In creating a truncated cone, the direction of the magnetic force gradually points more outward as the process progresses, and material is forced outwards from the cone center, increasing thinning in M-SPIF, while the cone center remains undeformed in traditional SPIF. Moreover, M-SPIF creates less localized plastic strain than traditional SPIF while forming the desired geometry.

本文介绍了使用 Nd-Fe-B 磁球工具进行磁场辅助单点渐进成形 (M-SPIF)。在 M-SPIF 中，由磁力驱动的工具使片材发生塑性变形。磁性工具的极性有助于使磁力（即成型力）更可控。在创建截锥时，随着过程的进行，磁力的方向逐渐指向更外侧，材料被迫从锥体中心向外，在 M-SPIF 中增加变薄，而在传统 SPIF 中锥体中心保持未变形。此外，与传统 SPIF 相比，M-SPIF 在形成所需的几何形状时产生的局部塑性应变更小。