Every heat number is checked for chemistry, hardness and grain size before it reaches the furnace; certificates are filed against the batch.
First-piece approval at forging, hobbing and grinding; SPC on tooth thickness and runout every two hours; heat treatment curves recorded per load.
CMM, gear measuring centre, profile and lead tester, hardness and case-depth lab — all in house and calibrated annually against traceable standards.
Batch number follows the part from bar stock to carton: heat number, machine, operator, furnace load and inspection results stay linked for five years.
Level 3 PPAP packages, FAI reports, control plans and MSA studies for new programmes; sample parts kept for the life of the project.
IATF 16949, ISO 9001, software copyright for the CNC monitoring system, and customer audit records from Fast and JAC programmes.
Links to the issuing bodies, so buyers can verify each reference independently.
