Hazards and safety risks of industrial AM equipment
Industrial AM systems introduce hazards that differ from traditional equipment. Common risks include:
- Hazardous atmospheres – Combustible dusts, powders and flammable vapors can create ignitable atmospheres within the machine that may lead to flash fires or explosions.
- Fire hazards – Heat sources, electrical components and process materials can create ignition sources that may result in fire.
- Electrical shock – High-voltage systems pose shock hazards during use or maintenance.
- Energy hazards – Lasers, motors and heaters create serious energy-related hazards.
- Injury hazards – Moving parts and pinch points can cause operator injuries.
- Laser hazards – Without safeguards, high-intensity beams can damage eyes and skin.
- Ingestion hazards – Fine metal or polymer powders can contaminate surfaces or become airborne, creating risks of accidental ingestion during handling or maintenance.
- Asphyxiation hazards – Inert gases such as argon or nitrogen used in metal AM systems can displace oxygen in the workspace, creating oxygen‑deficient atmospheres that — without proper ventilation or monitoring — pose serious risks to personnel.
Real‑world incidents underscore these hazards. In 2024, a fire in a San Francisco office building originated in its 3D‑printing laboratory,[1] highlighting that AM areas can present significant fire hazards without proper safeguards. In another case, a dust collector explosion at a metal 3D printing facility in Shanghai[2] occurred when water contacted aluminum alloy powder inside the collector, triggering a hydrogen‑generating reaction that led to a deflagration that killed two workers and injured two others. The U.S. Occupational Safety and Health Administration (OSHA)[3] cited a metal 3D printing shop where reactive metal powders were accumulating in the workspace and ventilation and safeguards were lacking — creating fire and deflagration hazards.
