An additive manufacturing method includes removing material from a sheet to create a plurality of individual layer segments formed, placing at least two first layer segments adjacent to each other at the same height to form a first layer having a hollow interior, the at least two first layer segments defining a first portion of an exterior of a part, and placing at least one second layer segment above the at least two first layer segments to form a second layer having a hollow interior, the at least one second layer segment defining a second portion of the exterior of the part. The method includes attaching the first layer to the second layer and removing material from the first layer and from the second layer to form the part having a continuous surface that extends along the first layer and the second layer.

The present invention pertains to the field of the arms industry and metallurgy, and also to the fields of materials engineering and chemical engineering. More specifically, the present invention refers to a novel ammunition cartridge comprising reinforced polymer and the manufacturing process thereof. The ammunition cartridge serves for receiving the gunpowder so that explosions can occur inside the weapon barrel. The technology proposed reduces the quantity of components to be pre-manufactured and assembly processes on the product, producing a full cartridge, directly upon injecting the thermoplastic, and can also use bi-component injection. With this, the portion of the collar ring can be made entirely of fiber-reinforced polymer material, which reduces the weight of the item and is beneficial for the useful life of the weapon in the bolt region.

Techniques for providing a conical composite involve receiving a starting portion of a tape from a tape supply, the tape having a first tape edge and a second tape edge. The techniques further involve positioning the starting portion of the tape in contact with a conical tool structure. The techniques further involve, after the starting portion of the tape is positioned in contact with the conical tool structure, maneuvering at least one of (i) a tape deployment head relative to the conical tool structure and (ii) the conical tool structure relative to the tape deployment head to deploy the tape around the conical tool structure with the first tape edge adjacent to conical tool structure and the second tape edge extending outwardly from the conical tool structure to form the conical composite.

Techniques for providing a heatshield involve receiving a starting portion of a tape from a tape supply, positioning the starting portion of the tape in contact with a tool structure, and after the starting portion of the tape is positioned in contact with the tool structure, and robotically moving the tool structure and a tape deployment head relative to each other to precisely guide the tape onto the tool structure. Robotically moving the tool structure and the tape deployment head relative to each other includes receiving a set of sensing signals indicating current position of the tool structure and the tape deployment head relative to each other, and based on the set of sensing signals, applying the tape under pressure (e.g., via pressure and temperature control) to form the heatshield.

A sheet of composite material sheet of composite material includes a backing material. The sheet of composite material further includes at least two non-rectangular segments of composite material on the backing material. A first non-rectangular segment of the at least two non-rectangular segments positioned adjacent to a second non-rectangular segment of the at least two non-rectangular segments.