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CNC Machining of a Cocking Handle for a Military Application

CNC Machining of a Cocking Handle for a Military Application


Schmid Tool and Engineering's expertise was recently called upon to produce a cocking handle for use in the small arms division of the US military. The part needed to be held to the exacting standards of multiple military specifications at every step of the manufacturing process.

Our design team created the fixturing, gaging, and the investment forging needed to CNC machine 6,000 cocking handles from 4130 steel and 7075 aluminum. Various machining strategies were used in the process, including forging, milling, and Swiss turning. Each of the parts, which measured 9" x 0.75" x 3", held to the required ±.0005" tolerances. As a full service contract machine shop, Schmid Tool also applied several secondary processes, including ...
Casting of Steel Bolt Body for the Fire Arms Industry

Casting of Steel Bolt Body for the FireArms Industry


A large project recently completed by Schmid Tool and Engineering is the manufacture of 12,000 EAU steel bolt bodies used within a firearm application. We produced the component, from design through to packaging, on a just-in-time delivery schedule.

Heavily experienced with firearm requirements, our in-house design experts developed the production gages, machining fixtures, and the investment casting needed to cost-effectively produce the 3" x 1" x 1" components with the required accuracy and repeatability required by the customer. Employing our 4-axis CNC vertical milling machine, our skilled machinists produced the parts from 4130 steel and then honed them to a 125 RMS finish. Each finished part, manufactured to within the ...
CNC Machining of Aluminum Tube for the Fire Arms Industry

CNC Machining of Aluminum Tube for the FireArms Industry


At Schmid Tool and Engineering, high volume jobs present us with the opportunity to test our abilities for machining parts in the most efficient, cost-effective manner possible. One of our recent challenges was a contract from a firearms manufacturer for fabricating 100,000 anodized aluminum tubes that met multiple military specifications.

Focusing on efficient use of materials, our in-house design team developed a multi-step primary CNC machining process that incorporated two distinctly different raw materials, turning the parts on a Y-axis lathe, and then horizontal milling. Subsequently, the tubes, which measured 8" long with 1" diameters, were put through secondary processes that involved sand blasting, dry film ...
Assembly of Trigger Frame for the Military Industry

Assembly of Trigger Frame for the Military Industry


From design and machining to final assembly and packaging, Schmid Tool and Engineering recently completed the production of a trigger frame assembly for a firearms manufacturer. Complex in nature, this project involved fabricating and assembling 28 unique parts into multiple sub-assemblies that came together to form the final piece. All operations required adherence to strict military specifications and stringent tolerances of ±.0004".

Multiple machining techniques were used to produce the parts, ranging from CNC milling and Swiss turning to broaching and stamping. Although fabricated primarily from aluminum and steel, the trigger frame assembly also had plastic components that we injection molded on-site. Conducted in our 5S ...
CNC Machining of Steel Trigger for the Military Industry

CNC Machining of Steel Trigger for the Military Industry


Demonstrating our ability to produce precision machined parts on very tight schedules, Schmid Tool and Engineering recently completed the manufacture of a high volume production run of steel triggers for the military firearm industry.

The contract called for a two week delivery of 72,000 steel triggers that met multiple military specifications. Fabricated from 8620 steel, our highly trained machinists were able to design the investment casting mold, machining fixtures, and gaging required for the streamlined milling operations used to fabricate the 1.5" x 2" x 0.3" part. Secondary operations involved grinding and heat treating along with application of a manganese phosphate coating and a black finish. All parts met with the ...