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

Beatrice Valoppi, Antonio J. Sánchez Egea, Zixuan Zhang, Hernán A. González Rojas, Andrea Ghiotti, Stefania Bruschi, Jian Cao*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

39 Scopus citations


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.

Original languageEnglish (US)
Pages (from-to)309-312
Number of pages4
JournalCIRP Annals - Manufacturing Technology
Issue number1
StatePublished - 2016


  • Electrically-assisted
  • Incremental sheet forming
  • Titanium

ASJC Scopus subject areas

  • Mechanical Engineering
  • Industrial and Manufacturing Engineering


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