Engineers from Texas company Solid Concepts world`s first "printed" metal three-dimensional working model army pistol caliber M1911 .45 ACP, were in service with the United States 1911 to 1985. According to a company press release, the weapon, dubbed 1911 DMLS, was "printed" by direct metal laser sintering Direct Metal Laser Sintering, DMLS stainless steel 17-4PH and Inconel 625 brands. Weapons tests were successful.
"printed" gun consists of 33 parts, fully executed by the DMLS technology except springs, which were made separately. First, the weapon was tested while being supported on the bench pressing the trigger performed by pulling the rope, and then while holding the gun in his hand. Weapon has fulfilled without delay, without getting visible damage.
According to Solid Concepts, 1911 DMLS was "printed" not for the invention of cheap mode of production pistols at home. The company wanted a way to show that the method of direct metal laser sintering sufficiently reliable and accurate, so they can be used to "print" of the various weapon parts. Furthermore, the engineers would show that the "printed" metal parts have good durability.
When DMLS-print metal powder stainless steel 17-4PH and 17-5PH, Inconel 625 and 718, and titanium Ti6Alv4, pour into container, melted into a homogeneous structure. "Print" is carried out in layers, the thickness of each layer is about 20 microns. Each melting device utaplivaet special "printed" layer is a powder, while causing a new layer on top of the metal sintering. Constructed in this manner do not require additional parts machining.
M1911 pistol was designed by John Browning in 1911, chambered for caliber .45 ACP 11,43 ? 23 millimeters. With a length of 216, height 135 and width 30 mm gun weight is 1.12 kg without magazine. Weapon works on the principle of efficiency in the short course of the trunk, which the locking two lugs. Sighting range M1911 is 50 meters. Weapons equipped shop for seven rounds.Although
M1911 became the first small arms, "printing" of metal, it is not the first gun, created by 3D-printer. In early May 2013 the American gunsmith enthusiast developed, "printed" and experienced single-shot pistol The Liberator. This weapon was "printed" made of plastic and consisted of 16 items, only one of which was a metal ? as the striker had used a piece of nail.
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