Slot Widths, Hole Axes And Leg Faces Held In Step After Hardening
These forks are milled from 1Cr17Ni2 martensitic stainless steel (AISI 431 class), quenched and tempered to the hardness the drawing calls for. 17-4PH and 420 stainless are also available where a different balance of toughness and corrosion resistance is needed. Every shipment includes CMM Dimensional Inspection Reports and Material Mill Certificates, and hardness records travel with the parts.
Treatment moves a fork more than it moves a solid block: the legs can come back slightly closed, and the two cross holes can drift a little out of line with each other, so the pin will not pass and the fork will not sit over its mating part. 7 Swords (Swords Precision) mills these 1Cr17Ni2 forks with allowance for the treatment cycle and re-checks slot width, leg faces and hole alignment on the CMM, so the fork goes together first time at the hardness the drawing calls for.
With 20+ years of cumulative machining experience at your service, PFT delivers DFM-optimized solutions that reduce cost without compromising quality. Our ISO 9001:2015 and ISO 13485:2016 certified, TUV Rheinland-verified Shenzhen factory operates 79+ CNC machines with a monthly capacity of 300,000+ pieces.