Selective laser melting (SLM) additive manufacturing

This invention describes a device for checking the quality of 3D-printed metal parts as they are being made. It uses a laser beam and an interferometer to precisely measure how the molten metal solidifies right after the main printing laser passes. The device's laser beam follows closely behind the printing laser, focusing on the newly solidified material to detect any tiny imperfections.

Why it matters: Since 2018, the additive manufacturing industry has placed a much greater emphasis on in-situ quality assurance and process control. Improved sensor integration and real-time data analysis, often powered by AI, now make sophisticated monitoring like this more practical and essential for reliable production.

Status: Not in forceListed as no longer active. The specific reason is not in the record we hold.
How hard to build: SpecializedPrecision optics, laser, photodetector, control logic, SLM integration

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