Re-worked rivet nut for battery storage project

For an OEM specialized in sustainable energy projects, a battery enclosure design specified M12 semi hex closed end rivet nuts. The fastener had to be closed end to prevent ingress of dust or dirt, and hexagonal for increased spin out resistance in 6 mm thick parent material.

Application  & customer profile

For an OEM specialized in sustainable energy projects, a battery enclosure design specified M12 semi hex closed end rivet nuts.  The fastener had to be closed end to prevent ingress of dust or dirt, and hexagonal for increased spin out resistance in 6 mm thick parent material.

Challenge

The deal was signed, but the customer needed the project to kick off much sooner than planned. Therefore the prototype enclosures had to be manufactured rapidly, long before the required customized fasteners were being produced.  Dejond was asked how quickly we could supply an acceptable alternative fastener ? – the heat was on.

Tubtara® Approach and solution

Dejond proposed to re-work stocked cylindrical parts and modify them into a hex rivet nut, suitable for the application. We took standard hex M12 machine tooling and modified the dies and punches in our own tool shop to fit into a post-operation machine. This newly constructed machine set up allowed  the transformation of cylindrical into semi-hex shaped HUPX rivet nuts.

 

Within two weeks we manufactured and shipped a small quantity for the prototype builds, which were tested and validated.  Another shipment of re-worked product allowed the subcontractor to complete their first production batch. These urgent deliveries sufficed until a completely cold formed production run would become available two months later.

Benefits

Dejond’s flexibility and post operation capabilities can offer customers short-term rivet nut solutions, even if the desired part is not available from stock, by simply re-working stocked standards.