Videos tagged with Heat Treatment

This video explains the process of flame hardening, a heat treatment technique for steel. It emphasizes that the steel must be heat-treatable, specifically carbon or alloy steel with at least 0.2% carbon content. The process involves locally heating an area of the steel to achieve hardening.

This video explains the origin of the two-tone finish on some World War II-era 1911 pistols. The differential coloration is due to selective hardening of high-stress areas by dipping them in molten lead, which alters the steel's properties. This process affects how the Parkerization finish adheres, creating the distinct two-tone appearance, a characteristic not found on modern reproductions.

This video offers an in-depth look at the manufacturing processes at Fabryka Broni 'Łucznik' in Radom, Poland. Expert Ian McCollum guides viewers through the production of modern firearms like the MSBS Grot and Beryl rifles, showcasing the evolution from historical methods to advanced CNC machining, hammer forging, and rigorous quality control. The tour highlights the precision engineering involved in creating components for military-grade weapons.

This video details the industrial manufacturing process for machine gun links at Arex Defense in Slovenia. It covers the transformation of raw sheet steel through high-speed stamping, hardening at 850°C, quenching, annealing at 360°C, and final phosphating for corrosion resistance. The facility boasts an impressive annual production capacity of 100 million links.

Mark Serbu provides a preliminary analysis of the RN-50 incident, debunking the 85,000 PSI failure rumor by calculating thread shear pressure at 161,520 PSI. He confirms production RN-50 breech caps are heat-treated, unlike an old prototype. The analysis suggests the failure was likely due to counterfeit SLAP ammunition, possibly loaded with incorrect powder, rather than a design flaw.

This video details the challenges and lessons learned during the final testing phase of the AK-50 V1 prototype. Key issues included stacking tolerances requiring precise machining and significant bolt galling due to hardened steel components rubbing under .50 BMG pressure. Despite retiring the V1, the insights gained are crucial for the development of the V3, which targets a $4,499.95 retail price with improved features.

The AK-50 project faces significant delays due to a machine shop issue, pushing the V2 prototype timeline. However, this delay proved beneficial, revealing critical V1 design flaws like improper bolt rotation and soft heat treatment. Modifications to the bolt carrier improved rotation, but extraction issues persist, requiring a redesigned extractor for V2. Future plans include magazine feeding and final aesthetics.

This entry details the custom gunsmithing work of John Martz on Walther P38 pistols. It covers modifications such as creating a compact 'Baby' P38, converting a P38 to fire .45 ACP through significant frame and barrel fabrication, and rechambering for .38 Super. The expertise of John Martz, a WWII veteran and skilled fabricator, is highlighted, emphasizing the high level of craftsmanship involved in these unique, finite collector's items.

This video details the complex process of fabricating a new mainspring for a vintage Marlin Ballard No. 2 Sporting Rifle. It covers diagnosing misfires caused by a weak spring, disassembling the breech block, and precisely shaping new spring stock from annealed steel. The process includes critical heat treatment steps of hardening and tempering to achieve the correct spring properties and a blue finish, along with safety repairs like deepening the half-cock notch and muzzle recrowning.

This video details the expert-level manufacturing process for a Gunwerks LR Series rifle action, starting from a 416 stainless steel blank. It covers critical machining steps including broaching, CNC turning and milling, Wire EDM for precision, and final finishing. The process is engineered for accuracy and concentricity, highlighting Gunwerks' commitment to quality.

This video, presented by Larry Potterfield, focuses on the gunsmithing technique of nitre bluing firearms. It highlights the process with an emphasis on craftsmanship and achieving a durable, aesthetically pleasing finish on firearm components. The content is geared towards individuals interested in firearm maintenance, customization, and historical finishing methods.