3d printing

US Marines Printing Metal Rocket Cover for Mine Clearance

“Conflict! The facts best for?” asked Edwin Starr. “Nothing at all!” was his oversimplified reply.

He was partially correct. As it turns out, war is pretty good for finding progressive new ways to blow stuff up.

That’s exactly what the united states Marine Corp (USMC) has been doing currently in the domain of mine clearance, with their 3D published metal rocket cover. What is a rocket cap exactly, and just why is a 3D imprinted one better? Read on to know more.

Rocket Cover (Image credit: USMC)

Rocket Cover

The M58 Mine Clearing Range Fee is a rocket-projected explosive range fee used for demining activities. A brand charge in most cases is an extended range with explosive charges fastened along its length. It really is fired from a car by rocket, and the rocket pulls the brand fee out to its full size across the minefield. Once organized, the charges detonate and trigger any mines in the swath of the line charge, making method for troops and vehicles to securely cross.

Regarding the M58 here, it can obviously blast a corridor calculating 100 metres by 8 metres. The 5-inch MK22 Mod 4 rocket carries the collection which contains 5lbs (2.27kg) of C4 explosive per linear foot (0.3m) of brand. And on the finish of this rocket sits a cap. Customarily it appears that these may be produced from material casting and machining.

The new version does away with all those operations towards the 3D published one you can view in the picture below.

Printed caps are less time consuming (Image credit: USMC)

The attracting in the image below shows the cutaway of the MK22 Mod 4 rocket. The finish cap rests on the finish and is connected to the nozzles.

Remember that unlike most rockets, the nozzles are on the nose of the rocket, and not the tail end (presumably for stability, therefore it doesn’t establish the line on fire).

There is a fair bit of complicated geometry inside the finish cap as you can plainly see.

Cutaway of the rocket. The cover is shown in the bottom left part (Image credit: Team of the Army)

THIS PROGRAM Director for Ammunition at Marine Corps Systems Command (PM Ammo) has been experimenting with the utilization of additive processing for these caps, as traditional ways of make are costly and frustrating.

Successful Test

After much R&D, a test article was printed by the Naval Surface Warfare Centre Corona Section and deployed at Yuma Proving Surface in Yuma, Az. By all accounts, the test was successful and the mines were cleared from the test area.

3D model of the rocket. Rocket cap is of the kept hand area (Image credit: DoD Energetics Centre)

“The rocket electric motor fired off equally as meant and the lines demand detonated as it is meant to, that was a significant point in time for us.” CWO2 Justin Trejo, Task officer with PM Ammo at MCSC.

We don’t have a training video of this exact test at Yuma, but there is a great video below displaying the deployment of the rocket and succeeding detonation of the line thereafter.

“We’re in a position to create equipment parts and other possessions for whatever particular mission we’re engaged in,” said Trejo.

“This 3D-branded headcap represents the Marine Corps going far beyond to aid our Marines.”