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PBF-EB

Powder Bed Fusion Electron Beam

EBW

Electron Beam Welding

LEAM-e 1

Chamber Size: 500x500x800 mm EBW: Yes Powder Bed Fusion: Yes Acceleration Voltage: 40 to 100kV Beam Power: 6 to 26 kW Beam Modes: Geometric & Time Domain CNC: CT Open Source

LEAM-e 4

Chamber Size: 2500x1000x1250mm EBW: Yes Powder Bed Fusion: Yes Acceleration Voltage: 40 to 150kV Beam Power: 6 to 60 kW Beam Modes: Geometric& Time Domain CNC: CT Open Source

LEAM-e 8

Chamber Size: 4000x1500x2000mm EBW: Yes Powder Bed Fusion: Yes Acceleration Voltage: 40 to 150kV Beam Power: 6 to 60 kW Beam Modes: Geometric& Time DomainCNC: CT Open Source

Any technical details given are subject to changes.

Axes are defined according to ISO 814

LEAM e

LEAM-e Electron Beam

LEAM-e is highly flexible and processes parts made from advanced materials. We offer systems that range from 40 to 150kV with power 6 to 60kW. CT achieved a superior standard of electron beam by offering an multi beam emitter system (optional). Single and multi emitter are combined with an advanced high speed cartesian coil system and a dual beam visualization optics.

LEAM e

Electron Beam for additive manufacturing and welding applications

LEAM e +

Multi-cathode system for advanced manufacturing applications

ADVANCED BEAM FUSION

LEAM Beam Modes

LEAM electron beam systems can operate in 3 modes namely Geometric Mode, Time Domain discrete melt pools and Time Domain with linked melt pools

Geometric Melt Domain

Is mostly used and based on the part geometry, which defines the beam path with beam on/off at the start and end.

Time Domain Discrete Melt Pool

In addition to the part geometry the beam trajectory will be divided in time segments and spaced apart. Each beam path is on a spot for a predefined duration (1 to 100ms) and moves to the next discrete spot.

Time Domain Linked Melt Pool

Reducing the distance of each spot will link the melt pools together as one. This will allow to better control of the heat input, e.g., pre-heat – weld – post heat.

More about Beam Modes Electron Beam from CANMORA

The LEAM-e CNC

The LEAM-e CNC

Control system is capable for the complex functionality needed whenever control functions like vacuum systems, high voltage systems, and drive and safety features, are required. The basic mode is called geometric domain, which creates trajectories based on the part geometry. A CT specifically develop mode is called “Time Domain”; in this mode the part geometry is divided into time segments. For example, a 10mm line is split into segments which length is converted by a chosen time segment, e.g. 1 to 100 milliseconds. The beam is moved every time segment to another position but moves back to the previous position in the programmed time. Therefore, the part geometry is divided into time segments and executed in order to have better melt pool control. This option requires the fast LEAM-e beam steering.

Machine Vision

Visual Optics

The optional machine vision system is designed to allow the user to find the exact weld gap location and to align the beam with the part. The software is connected to a camera, which is mounted at the electron beam optical vision system. The electron beam system has an internal optical system with vapor protection, allowing the camera to look coaxial down onto the process area. There are crosshairs displayed together with the captured image to facilitate the machine operation.

IR - Optics

Beside the visual viewing port, the second optical system can be used to add IR (infrared) cameras. This allows to inspect the time - temperature profile around the melt pool for additional process data.

CANMORA LEAM-e 8 Electron Beam Facility

This shows our electron beam facility in Vancouver. We are operating a LEAM-e 8 electron beam system in a shared facility with UBC. The machine can be operated as electron beam powder bed fusion process or reconfigured as welding machine.