Laser Engineered Net Shaping Tool Filter Fire

Image for Laser Engineered Net Shaping Tool Filter Fire

Type:  Lessons Learned

Publisher:  Sandia National Laboratories, Albuquerque, NM (Sandia National Lab)

Published As:  Public


Topics:  Fire Protection, Maintenance, Work Management/Planning, Glovebox & Containment Systems

A filter caught fire on the supply side of a compressor/recirculation pump supplying argon gas to the process chamber of an additive manufacturing machine. The plastic tubes and electrical wiring adjacent to the filter also caught fire. Employees were aware of the change schedule for the in-process filters and of the fire hazard dangers associated with these filters. They were not aware of an additional filter outside the process chamber that was hidden behind an enclosing panel.

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