Quality Assurance
Quality control of products begins from Raw material itself.
Raw Material:
Forgings are procured using steel from approved steel mills only. Forgings are received Heat Code Wise in duly Isothermally Annealed/ Normalized condition. Following Checks are carried out before further processing:
  • Visual Inspection for cracks and folds
  • Dimensional Inspection
  • Check of Chemical Composition by spectro Analysis
  • Hardness
  • Jominy hardenability
  • Micro Structure and Inclusions
  • Grains size and Grain Flow
In Process:
  • First off inspection
  • Patrol Inspection at defined interval as per control plan
  • For Bevel Gears check tooth contact in soft gears
  • Before Heat treatment Inspection for all parts
  • For Bevel Gears Final Testing to ensure back-lash at correct mounting distance, tooth contact, run out and marking mounting distance variations.
Heat Treatment:
Batches are subjected to checks on
  • Effective Case Depth
  • Core and Surface Hardness
  • Microstructure- Case and core
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