Insert Molding and Machining of Circuit Board Mounting Brackets

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At ASPEC, we have the resources to be the single source for finished, tight-tolerance components ready for the next step in the assembly process. We manufactured the three-part set of insert molded circuit board brackets with brass threaded inserts highlighted here for a customer in the computer industry.

Using a 1.5 oz. shot size of black Ultem 2400, chosen for its high thermal resistance and stiffness, we insert molded the components on our 28 ton vertical clamp, horizontal injection press. We operate a quick-change MUD Base mold insert system to facilitate 15 minute mold changes providing maximum efficiency which kept costs reasonable in this low volume application. We CNC drilled the four side core holes to within -.000/+.001″ tolerances on hole diameter and +/- 0.002″ on the distance between, and installed two additional self-expanding brass threaded inserts. EDM machining enabled us to achieve the required high quality surface finish.

These parts featured overall dimensions of 2-3/8″ x 1-1/2″ x 1″ and wall thicknesses ranging from 5/16″ to ¾”. Strongly bonded-in hardware ensured that the tight connections would remain stable, even after exposure to high temperatures. By leveraging our value-added services, we were able to provide the customer with a robust product on a narrow timeline.

If you are interested in learning more about this project, or have a similar one and would like to discuss the details, contact us today.