PB WEBAM 100

The PB WEBAM 100 is an EBM 3D printer from pro-beam additive with a 1400 x 1300 x 1100 mm build volume.

Specifications

Electron Beam

150 kV acceleration voltage; beam power sufficient for 2 kg/h copper deposition. Electromagnetic deflection for high scan speed.

Wire Feed (DED process)

Wire melted directly by electron beam - not powder-bed. Deposition rate: 2 kg/h on copper (1.9 kg/h demonstrated on 200 mm Cu half-shell), 0.8-1.6 kg/h on Ti6Al4V.

Multi-material capability

Different wire alloys deposited in a single build - bi-metallic and functionally-graded structures.

Chamber & Safety

Hard vacuum ~10E-4 mbar - no shielding gas required. At 150 kV, certified radiation shielding of the room is mandatory.

Build Volume.

Calibration

Vacuum preparation

Evacuate chamber to ~10E-4 mbar; even ppm oxygen is critical for Cu and Ti.

Wire feed calibration

Single-bead test; set wire feed rate and beam power for a consistent, uninterrupted bead.

Multi-material transition

Flush wire guide when switching material; verify clean transition zone free of contamination.

Thermal management

Monitor temperature gradient on large deposits; pause between layers when needed.

Common defects

Porosity / Hot cracking

Insufficient energy dose or excessive thermal stress. Fix: optimise wire feed rate; add preheat layers.

Delamination

Insufficient power to re-melt prior layer. Fix: increase beam power; add re-melt pass.

Surface roughness

Inherent to wire DED (Ra 50-200 µm). Mandatory machining post-processing for functional surfaces.

Oxygen contamination

Chamber leaks -> discoloured Ti, brittle Cu. Fix: verify vacuum before each campaign.

What it is used for

Rocket engines & space structures

Multi-material Cu/Ti in a single build under hard vacuum - unique capability for cooling channels.

Large-scale Ti structures

1400x1300x1100 mm + 2 kg/h Ti - airframe and marine structural parts.

Copper heat exchangers

High-purity Cu at 2 kg/h for cryogenic and nuclear thermal management.

Reactive & nuclear alloys.