Wire Drawing Die Recutting (Resizing)
Coolervie provides precision wire drawing die recutting, resizing and reconditioning services for worn natural diamond, synthetic diamond and polycrystalline diamond (PCD) dies. Our process helps restore die geometry, correct the working hole size and extend usable die life .Our process helps restore die geometry, correct the working hole size and extend usable die life when the die condition allows.
Initial Inspection & Cleaning
Each used wire drawing die is cleaned in an ultrasonic bath to remove drawing lubricants, metal fines and other debris. Technicians inspect the die under a microscope to evaluate the wear ring, working bore and possible micro-cracks in the die blank. This initial inspection helps determine whether diamond die recutting or resizing is suitable and identifies the smallest feasible finished hole size.
Laser or Ultrasonic Machining
Precision laser machining or ultrasonic grinding is used to remove worn material and establish the required working bore geometry. The appropriate method depends on the die material, existing wear condition and target hole size. During wire drawing die reconditioning, technicians restore the reduction angle and bearing profile as required for the specified dimensions.
Profiling & Blending
A properly reconditioned wire drawing die requires smooth transitions between the entrance, lubrication, reduction, bearing and exit zones. During die profiling, technicians refine the reduction angle and bearing geometry according to the required die specifications. Correct die geometry helps support consistent lubrication, stable drawing conditions and reliable wire surface quality.
Wire Polishing
After recutting, the working surface is polished using suitable diamond polishing materials and precision equipment. Diamond die repolishing helps improve the finish of the die bore and reduce surface irregularities that may contribute to drawing friction. The final polishing requirements depend on the die material, bore geometry and intended wire drawing application.
Final Calibration & Quality Control
After wire drawing die recutting, the finished hole size, bearing diameter and internal profile are checked against the specified requirements. Laser micrometers and profile projectors are used where appropriate to verify dimensional accuracy and die geometry. This final inspection helps confirm whether the reconditioned die meets the agreed specifications before returning to production.