• Livan Fratini
Living reference work entry
DOI: https://doi.org/10.1007/978-3-642-35950-7_6680-4



  • Fusion welding: Melting together – with or without a filler – of materials which as they solidify give rise to a single part.

  • Solid-state welding: Welding occurs without melting of the involved materials (no filler is typically used).

Theory and Application


In the following, the most relevant welding processes will be briefly described. First, common classifications of the welding operations are provided, following what is already mentioned in the definition section, as part of the wider concept of Joining. The traditional welding processes are subdivided into fusion and pressure welding processes, the latter indicating processes in which both fusion is obtained and pressure is applied. Furthermore, the welded joints are classified on the basis of the mutual position of the blanks to be welded (butt joints, lap joints, T-joints, and so on) and – in the cases of manual processes – on the position of the joint to be welded with respect to the...

This is a preview of subscription content, log in to check access.


  1. Kalpakjian S (1997) Manufacturing engineering and technology. Addison-Wesley, ReadingGoogle Scholar
  2. Mishra RS, Ma ZY (2005) Friction stir welding and processing. Mater Sci Eng R50:1–78CrossRefGoogle Scholar
  3. Rodrigues J, Martins P (eds) (2005) Tecnologia Mecânica (Mechanical technology), vols 1 and 2. Escolar, LisbonGoogle Scholar
  4. Schey JA (1997) Introduction to manufacturing processes. McGraw-Hill, New YorkGoogle Scholar
  5. Vairis A, Frost M (2000) Modelling the linear friction welding of titanium blocks. Mater Sci Eng A 292(1):8–17CrossRefGoogle Scholar

Copyright information

© CIRP 2018

Authors and Affiliations

  1. 1.Innovazione Industriale e Digitale (DIID) – Ingegneria Chimica, Gestionale, Informatica, MeccanicaUniversity of PalermoPalermoItaly

Section editors and affiliations

  • Joerg Krueger
    • 1
  1. 1.IWFTechnische Universität BerlinBerlinGermany