Concept Laser M2 Series 5

The Concept Laser M2 Series 5 is a DMLS 3D printer from Colibrium Additive with a 245 x 245 x 350 mm build volume.

Specifications

Concept Laser M2 Series 5: Technical Specifications

Laser

Two 400 W ytterbium fiber lasers, each with full-field access to the 245×245 mm build area (no fixed zone boundary). Delivers genuine 2× throughput vs. Series 4 without stitching artefacts.

Optics / Scanner

F-Theta optics with high-speed galvo scanners; spot diameter ~70–100 µm; scan speed up to 7 m/s.

Platform

Precision Z-axis stepper; substrate plates in tool steel or Ti for medical use; leveling ≤ 30 µm.

Chamber / Inert Gas

Revised Series 5 laminar gas-flow system maintains O₂ < 0.1% for reactive materials; redundant dual O₂ monitoring.

Calibration

Calibration of the M2 Series 5

Leveling: automated with laser sensor; ≤ 30 µm across 245×245 mm field; re-verify at every substrate plate change.

Dual-laser verification: individual power and focus check per laser; metallographic cross-section test at the stitching zone for uniform density.

O₂ inerting: dual sensor system; reach O₂ < 0.1% for Ti/Al before build start authorization.

Common defects

Common Defects and Corrections

Porosity: gas or keyhole porosity from unoptimized VED or O₂ contamination. Fix: optimize laser power/scan speed window; maintain O₂ < 0.1%.

Hot cracking in superalloys: liquation cracking in IN738/CM247. Fix: substrate preheating; island rotation scan strategy; HIP post-process.

Recoater streaking: nicked blade or spatter-contaminated powder. Fix: replace blade; resieve powder.

Warping: residual stress in large cross-section parts.

What it is used for

Use Cases

Aerospace components (Ti, Al): AS9100 traceability and dual-laser throughput for serial production of brackets and housings.

Medical implants: ISO 13485 compliance; Ti Grade 23 at > 99.9% density; ASTM F3302 surface control.

Gas turbine parts (Inconel): optical cooling and thermal control reduce residual stress in demanding nickel superalloys.