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Electron Beam Welding Expertise


Electron Beam (EB) Welding is an excellent metal joining process for all types of applications and for more than forty years, clients (Aerospace, Military, Energy, and Science) across the globe have trusted Roark to consistently produce precision and quality welds. We have the latest CNC equipment and experience to handle just about any size, shape and material type (including dissimilar materials) that your design may require.

Sciaky EB Welder front

16 EB Welders  –  3 locations. 


Roark Complex Fabrication and EB Welding logo
C.F. Roark Welding & Engr, Brownsburg, IN
  • (1) Sciaky EB – 42 KW CNC, 138 x 107 x 108
  • (1) Sciaky EB – 30 KW CNC, 86 x 62 x 92
  • (1) Probeam EB – 30 KW CNC, 138 x 107 x 108

Division of C.F. Roark

EB Weld Associates logo
EB Weld Associates, Indiananapolis, IN
  • (3) Hamilton Standard  7.5 KW, 52 x 36 x 36
  • (1) Leybold-Heraeus  7.5 KW, 52 x 36 x 42
  • (1) Sciaky EB – 30 KW, 68 x 58 x 78
  • (1) LaserStar Fiber Laser Welder 300 watt

Division of C.F. Roark

EB Fusion logo
Electron Beam Fusion, Milwaukee, WI
  • (2) Hamilton Standard  6.0 KW, 52 x 36 x 36
  • (3) Hamilton Standard  6.0 KW, 36 x 23 x 30
  • (1) Hawker Siddeley  6.0 KW, 52 x 23 x 30
  • (1) Hamilton Standard  6.0 KW, 36 x 36 x 36

Benefits of our EB Welding process include:

Deep weld penetration

From 0.05 mm to 200 mm (0.002” to 8”) in single pass


Cost-effective welding process for large production in automatic mode.

No Sub-Machining

Parts can mostly be used in the as welded condition

All Metals

Welding of all metals even with high thermal conductivity

Other Benefits

  • Computer controlled welding process
  • Deep penetration welds
  • Faster turnaround
  • Cost-Effective Processing
  • Minimal post weld machining
  • Versatility of metals
  • Normally no filler metal needed
  • Economical processing method

Not familiar with Electron Beam Welding (EB Welding)? Let us help.

EB Welding is a line of sight weld method in which a focused stream of high energy electrons are directed at a metal joint to form a uniform weld. EB Welding is an extremely localized and stable welding process and the resulting EB weld is a very narrow weld. Also, due to being a cold and stable process, there is a minimal heat affected zone. Unlike other fusion welding processes it requires no shielding gasses or filler material. The weld quality of an electron beam weld is exceptional and the process is extremely efficient, carefully controlled and fully automated. 

Still have questions? Please contact us to learn more about utilizing the Electron Beam Welding process for meeting manufacturing needs.

Custom Metal Fabrication for aerospace, energy and science delivered with precision.