Future Tech: 3D Metal Printing of Gun Parts and 1911 Pistol
Could your next metal scope rings, trigger guard, or muzzle brake be crafted with a 3D printing process? It’s possible. In fact, a wide variety of metal parts (even a complete handgun) can be printed using the latest 3D Direct Metal Laser Sintering (DMLS) process. The way this works is as follows: powdered metal is heated by a laser, causing the metal particles to fuse and solidify. This is progressively repeated, in vertically-stacked layers, until the entire metal part is complete. It’s like building a metal layer cake with the shape/size of each thin layer defined by a precise laser beam. The laser is guided by computer-controlled servos following a CAD “blueprint”.
This video demonstrates how metal parts are 3D printed using the DMLS process. This technology is offered by Solid Concepts, a leading rapid prototyping and manufacturing services company.
The Solid Concepts 1911 — World’s First 3D-Printed Metal Firearm
Solid Concepts has manufactured the world’s first 3D-printed metal gun using a laser sintering process and powdered metals. The gun, a .45 acp 1911 clone, has already handled 50 rounds of successful live-fire testing. A 1911 design was chosen because the “blueprint” is public domain. The gun is composed of thirty-three, 17-4 Stainless Steel and Inconel 625 components, crafted through the DMLS process. Even the carbon fiber-filled hand grips are 3D printed, using a Selective Laser Sintered (SLS) process.
Except for the springs, all the parts of this 1911 handgun were printed using the metal laser sintering process. Yes even the highly-polished slide, the barrel, the frame, and the hammer were printed. There are no forgings, castings, or conventionally-machined parts. With the exception of springs, all 30+ components in this prototype pistol were printed using Direct Metal Laser Sintering (DMLS) technology. Watch the video for a glimpse into the future of gun-making:
World’s First 3D-Printed Metal Gun Test Firing
Solid Concepts believes that its fully-functional, 3D-printed 1911 handgun proves the viability of 3D printing for gun parts, even highly-stressed components. Kent Firestone, V.P. of Additive Manufacturing at Solid Concepts, states: “We’re proving this is possible, the technology is at a place now where we can manufacture a gun with 3D metal printing. And we’re doing this legally. In fact, as far as we know, we’re the only 3D printing service provider with a Federal Firearms License (FFL). Now, if a qualifying customer needs a unique gun part in five days, we can deliver.”
Will we see complete 3D-printed metal guns on the market soon? That’s unlikely. It’s still more economical to produce complete guns the old-fashioned way. However, we may see 3D printing used for rapid prototyping. In addition, 3D metal printing has advantages for hard-to-machine parts with complex geometries. Solid Concepts reports that its 3D printed metal has fewer porosity issues than an investment cast part and better complexities than a machined part. It will be interesting to see what unfolds in the years ahead.
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Tags: 1911, 3D Printing, CAD, CNC, Direct Concepts, DMLS, Gun Parts, Laser, Sintered Metal, Solid Concepts
This is going to revolutionize gun manufacturing for small complicated parts.
oh boy, next the gov’t will try to obtain the printer “ink” to keep us from building our own guns