Quality Control Process Chart

First Grinding

Gear Cutting

100% check

Raw Material: Forging

Rough Grinding

Surface Heat Treatment

Raw-material Receipt Inspection

Final Inspection Report

Rough turning

UT non-destruction inspection reportMeasurement inspection reportMaterial chemical analysis and mechanical properties reportForging heat treatment report

Finish turning

Delivery to Customer

Assembly

1. Check hardness and depth.2. Check crack in raceway.3. Heat treatment report.

Final Grinding