Case Study: Quality Controlled Manufacturing Process

Two precision metal parts, Inner Cone and Contact Spring, for a Defense Manufacturer have similar forms as well as features. A detailed inspection process is required throughout production to deliver high-quality parts with zero defects.

1. A progressive metal stamping die draws the beryllium copper which is only .0150 thick to the designed form. This material is one of the highest strength copper-based alloys available.
2. The parts are washed to ensure they are oil-free.
3. Vacuum heat treating is next and this specialized method removes the air and its reactive elements to provide a cleaner surface. This eliminates the oxidizing that normally occurs on metals.
4. A detailed AQL inspection is performed by Ultra after heat treating.
5. Electroless nickel plating is then completed. This technique applies the coating more uniformly and provides greater corrosion resistance.
6. AQL inspection is performed by Ultra technicians after the plating is completed.
7. The high-frequency vibrations of the sonic welder melt together a ring and washer onto the inner cone and contact spring. This method creates a more precise and stronger weld.

Sonic Welder

8. Another AQL inspection is then completed by Ultra after the welding process.
9. A thin rubber insulating compound is applied to specific surface areas of these two parts to better localize the electricity.
10. A final AQL inspection is performed by our technicians before packaging and delivery.