Subscribe to the EPMA Mailing List

Bonding EBM-built Blocks Of 316L Steel, Using Hot Isostatic Pressing

  • : Pelle Mellin1, Hans Magnusson1, Peter Harlin2, Stefan Wikman3, Jon Olsén4
  • : 1Swerea KIMAB, 2AB Sandvik Materials Technology, 3Fusion for Energy F4E, 4Stockholm University
  • : PDF Download
  • : 2017


To enable production of the First Wall Beam in the ITER fusion reactor; we attempt to join EBM-built blocks of 316L, by Hot Isostatic Pressing (HIP).

For highly critical components, EBM-built material is usually HIPed anyway to heal defects such as pores and cracks. Using HIP to simultaneously bond several print-jobs together into a larger component saves time and reduces manufacturing complexity.

We found by carrying out this research, that fine surface roughness is an important enabler for a complete bond. The raw printed surfaces that are obtained straight from the Arcam machine (Ra = 19.2 μm) do not enable a good bond. Instead, traditional machining, which in this paper reached Ra = 2.0 μm, enabled a good bond. HIP parameters are also important. The best bond in this study was achieved after increasing holding time from 1 h to 2 h.


Non-EPMA member price shown. If you are an EPMA member please log in for your discount.
If you are logged in as a member but are still seeing this message, please contact us at
If you would like to find out about becoming an EPMA member, click here.
This product is currently only available to purchase via this website to companies with a valid EU VAT Number. If you are an individual or company without an EU VAT number wishing to purchase this, please contact EPMA directly at Alternatively, past Euro PM papers are available via ProQuest and Elsevier.
* This field is required
Go To Top