What are composite stock shapes?
Produced in molds, prepreg materials are cured into various different shapes such as rods, angles, wedges, and springs. These composite stock shapes can be from a single type of prepreg (called a monolithic construction) or from different prepregs. They can even include other materials such as PTFE covers, steel cores, or rubber face sheets that enhance the targeted properties for any given application.
Norplex-Micarta’s line of rods are different from many others available on the market in that they are rolled and then molded. They are not cut from a sheet. Therefore, the laminations are generally concentric with the OD, versus sheet-ground rod which has all of the laminations in a flat plane. Rolled and molded rods exhibit much more uniform strength and stiffness when compared with sheet ground rod.
All of these composite stock shape materials are fully cured and ready for fabrication by standard stock removal processes such as punching, turning, milling, water jet cutting, and other specialized processes depending on the part geometry, complexity, and tolerance requirements.
Often used for prototype or small applications, stock shapes have the advantage of placing the reinforcement into geometries that enhance the strength and stiffness of the resulting part.