The desire to get home safely dwells in the back of the mind of every soldier. The battlefield provides enough mortal dangers without soldiers having to wonder whether or not the weapons they carry could injure or kill them at any moment. A single flaw in the design or fabrication of man-held weaponry could prove fatal for a soldier, leaving weapon suppliers and manufacturers no margin for error in the weapon development process.
For one maker of rocket launchers, such precision became imperative when the supplier of their rocket launcher inner tubes halted production, leaving them without a supplier for this critical weapon part. The rocket launcher inner tube, like the inside of a gun barrel, must not only be an exact shape, but also strong enough to protect the soldier from the rocket inside.
“For our rocket launchers, we needed a supplier with expertise in modern fabrication techniques,” said the company’s program manager. “We needed a team that could give us a perfect inner tube every time, without a welded seam, that could withstand the rugged, deadly arena of the battlefield.”
The company shared the inner tube’s structural requirements and design drawings with Buckeye Shapeform, and it was determined that Buckeye’s deepdraw technology could produce an aluminum alloy inner tube without the welded seams that could potentially weaken them. The real engineering challenge, however, came from the aluminum’s tempering requirements.
Tempering the cylinder, a process that hardens and strengthens the metal, required heating the metal to a temperature high enough that the cylinder could lose its precise shape, so the team at Buckeye Shapeform developed additional engineering processes that allowed the inner tube to preserve its precise shape while maintaining the strict temper requirements.
In addition to the inner tube, the weapons manufacturer also needed a nose cone supplier for the rocket launcher’s firing round. During their initial visit to Buckeye Shapeform to discuss the inner tube project, company representatives noticed a cone-shaped part Buckeye Shapeform had created for another client. The quality of Buckeye Shapeform’s past work helped convince company representatives to enlist Buckeye Shapeform for the creation of the nose cone as well. Similar to the inner tube, the nose cone was created using deep-draw and additional processes to achieve tight precision tolerances. Once created, Buckeye Shapeform then customized the nose cone with the necessary holes, notches, and plating.
The prototypes of both the inner tube and nose cone then underwent rigorous quality-control inspection. In fact, Buckeye Shapeform developed a water munition, designed to simulate the munition round in the rocket launcher, in order to confirm the strength and structural integrity of the new parts. Tests revealed successful completion of every precise requirement.Rocket Launcher Tubes
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