These precision machined parts are stainless steel barb fittings for a fuel rail in a passenger type automobile.
The stainless steel grade used is specifically made to withstand extreme amounts of corrosion in the field (better than 303 stainless steel for example).
Although this helps with corrosion, it makes the precision machining portion much more difficult due to the high Chromium and low Sulphur in the material chemistry.
This precision crafted part is a hydraulic cage that has over 60 cross holes on it.
The cross holes meet on the inside with a precision reamed bore and the edges are typically used for metering surfaces to control the flow of fluid in a manifold assembly. Continue reading “Hydraulic Cages – Precision Machined Parts”
This part is a special quench and tempered steel shaft used as a differential pinion. There is a very special surface finish that is required after a nitriding compound has been added to the outside. This polishing operation provides a super finish on the outside diameters to near mirror finishes.
The outside of these precision machined parts are subjected to extreme forces and wear. That’s why there is a special nickel-chromium plating done to the part after it his heat treated. This helps improve wear, impact and corrosion resistance.