Assembly & Inspection

After machining, fixture components receive a black oxide finish for corrosion resistance and are laser etched for identification.  Finished details then make their way to the assembly department where our skilled technicians carefully assemble each component. The assembly department features large monitors to display the fixture model, so technicians can easily determine fixture function.

Once assembly gets a fixture far enough along to be inspected, it is moved to a temperature controlled CMM lab where the locating points are checked on our large capacity Zeiss Accura II 2000/3000/1500.  PDQ designs feature grind shim adjustment of rest pad height and round pin/diamond pin location.  Our CMM operator uses the grind shims to dial in the locating features.  CMM programs are saved by fixture number, so that repeat fixtures are inspected exactly the same way.  The final green sheet CMM reports are made available to the customer.

Following inspection the fixture is moved back to assembly for a pressure decay test and clamp test using a sample casting supplied by the customer.  Ideally, the customer visits PDQ’s facility for the clamp test and final approval.  If that isn’t possible, PDQ Quality and Engineering will approve the fixture for shipment, and then it is crated and shipped.