Metal 3D printing

This invention

This invention is an additive manufacturing system that builds metal parts using selective laser melting (SLM) and direct metal laser sintering (DMLS). It focuses on titanium and aluminum-alloy components. A laser melts fine metal powder layer by layer inside an argon-controlled inert atmosphere, and the system adds automated recycling of unused powder. It belongs to the field of metal powder–based 3D printing, where high-energy beams fuse metal powders into precision components for aerospace, medical, and industrial uses.

Where it fits

Your invention sits squarely in Metal Powder Processing (B22F) and 3D Printing (B33Y). It also ties strongly to Welding & Laser Cutting (B23K), Metal Alloys (C22C), and — through powder recycling — Clean Manufacturing (Y02P). This is a well-developed, tightly clustered corner. Metal Powder Processing appears here at roughly 321× the corpus baseline, so this is a real, actively pursued direction. Filings run steadily across many years, with peaks of 8 in 2016 and 8 in 2019. Several groups have been active nearby, most prominently RENISHAW PLC, UNITED TECHNOLOGIES CORPORATION, ALSTOM TECHNOLOGY LTD, and MTT TECHNOLOGIES LIMITED. The field also connects to Metal Heat Treatment (C21D), which these results touch less.

Closest related work

US-2014263209-A1 — Apparatus and methods for manufacturing (MATTERFAB CORP · 279 citations · 16-member family)

This widely cited patent describes a powder-bed melting apparatus with a material dispenser, a build platform, and multiple laser output optics steered by a mirror. It shows how Matterfab approached the core SLM building blocks — layered powder distribution and precise laser energy delivery — that your system also relies on. It's a useful foundational reference for how the powder-bed and beam-steering architecture has been framed.

US-10265772-B2 — Uninterrupted filtering system for selective laser melting powder bed additive manufacturing process (UNITED TECHNOLOGIES CORPORATION · 4 citations · 10-member family)

This patent pairs an SLM manufacturing chamber with an environmental control chamber that holds fans, filters, and an inert gas source. It shows how United Technologies approached atmosphere management and continuous gas and filtration handling — closely related to your argon atmosphere control. It's a good window into how inert-gas systems and chamber design integrate around a powder-bed process.

US-11802325-B2 — Aluminum alloy for additive technologies (filed 2023, recent · OBSHCHESTVO… RUSAL · 0 citations · 16-member family)

This recent patent covers an aluminum-based alloy — with magnesium, zirconium, and scandium — designed for atomization into powder and subsequent SLM processing. It shows how one group approached the materials side of aluminum-alloy printing, tuning composition for the laser melting environment. Since your system targets aluminum-alloy components, it's a helpful look at the alloy-design dimension that complements machine and atmosphere innovations.

US-10005240-B2 — Powder recycling system (MICROJET TECHNOLOGY CO LTD · 3 citations · 4-member family)

This patent describes a powder recycling system for a 3D rapid-prototyping apparatus, with a sealed body, negative-pressure and air-pressure generators, a sieving screen, and a heater to reclaim excess powder. It shows how Microjet approached automated powder recovery and sieving — directly relevant to your automated powder recycling feature. It's a focused reference on the reclaim-and-reuse loop that surrounds the build process.

What you can do next

• Explore & build on it. Browse the related work above — new, differentiated ideas often come from combining or improving on existing approaches (a specific alloy composition, argon flow geometry, powder-reclaim mechanism, or build-monitoring method others haven't pinned down).
• If you'd like to protect it. Filing a provisional application (usually with a patent attorney) is a common first step. Most inventions can be protected in some form — what matters is how broad and defensible that protection is, which is where a patent attorney adds value (a very narrow claim may be granted but protect very little).
• **If you'd like to make or