Scholarlink

<p>This study investigates the effect of toolpath strategy on the incremental forming of planar isotropic sheets of pure niobium. Fixed wall angle conical frusta were manufactured using two toolpath strategies: a conventional approach and a stair-based approach. Finite element analyses were employed to support the selection of process parameters and to predict the main process outputs. Experimental results show that the stair-based strategy reduces twisting and forming loads. However, despite the excellent formability of niobium, the surface quality remains inadequate. This limitation is attributed to the intrinsic material properties of niobium, indicating the need for dedicated surface treatment strategies to improve surface finish.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Defects and surface quality in single-point incremental forming of high-purity niobium sheets: a numerical–experimental investigation of toolpath effects

  • 期刊论文

  • 出版模式：

    开放获取

  • 发表日期：

    2026年5月9日

查看全文
  • Antonio Formisano,
  • Antonello Astarita,
  • Massimo Durante

摘要

This study investigates the effect of toolpath strategy on the incremental forming of planar isotropic sheets of pure niobium. Fixed wall angle conical frusta were manufactured using two toolpath strategies: a conventional approach and a stair-based approach. Finite element analyses were employed to support the selection of process parameters and to predict the main process outputs. Experimental results show that the stair-based strategy reduces twisting and forming loads. However, despite the excellent formability of niobium, the surface quality remains inadequate. This limitation is attributed to the intrinsic material properties of niobium, indicating the need for dedicated surface treatment strategies to improve surface finish.