Additive Manufacturing CAM
LPBF Metal 3D Printing Gas Flow & Scan Strategy Calculator
Optimize laser scan vector orientation, stripe hatch sequencing, and argon cross-flow velocity to eliminate optical attenuation and spatter redeposition.
Process Parameters & Inputs
Typical laminar argon/nitrogen flow: 1.5 - 3.5 m/s across build plate.
Fiber laser power for melting metal powder bed.
Linear galvanometer scan vector speed.
Width of individual stripe exposure sections.
Calculated CAM & Engineering Metrics
Spatter Settling Distance
18.4mm
Linear Volumetric Energy
66.7J/mm³
Recommended Upwind Delay
12.5ms
Condensate Attenuation Factor
Low(0.04)
Engineering Notes & Guidelines
Gas Shielding & Scan Direction Rules:
- Always sequence stripe exposures from the gas exhaust (downwind) toward the gas inlet (upwind) to prevent hot spatter from landing on unexposed fresh powder.
- Maintain cross-flow laminar velocity above 1.8 m/s for Inconel and reactive Titanium alloys to sweep volatile metal condensate plume away from the optical beam path.
- Stripe rotation angle between successive layers should be set to 67° or 57° to eliminate anisotropic microstructural grain orientation.
Looking for comprehensive CAM and preparation instructions?
Read Complete LPBF Gas Flow & Scan Strategy Prepress Guide →Need Production-Ready Clean Vector & DXF Geometry?
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