Sourcing heavy forged shafts, roller forgings, ring forgings and alloy steel forging components from Chinese foundries and forging workshops? CGF Inspection provides reliable During-Production Inspection (DPI) service for forging parts while bulk production is underway.

During-production inspection takes place after trial production and before manufacturing is fully completed. Our inspectors arrive on site to witness key working procedures, supervise process parameters, perform PMI spectroscopy material identification and witness required laboratory testing. This service is highly recommended for heavy machinery, energy, mining and engineering purchasers to control quality risks mid-production.

✅ On-Site Production Witness

Inspectors witness critical processes including billet heating, die forging, shaping, rough turning and heat treatment following customer witness requirements. Record production parameters and process stability.

✅ PMI Spectroscopy Material Verification

Conduct portable spectroscopy / XRF PMI test on forged blanks to confirm chemical composition, effectively avoid wrong material grade and raw material substitution.

✅ Dimension & Machining Allowance Check

Measure overall length, outer diameter, step dimension, fillet radius and forging surplus. Compare all measured data with technical 2D drawings.

✅ Visual Surface Defect Inspection

Check workpieces for forging cracks, lap folds, shrinkage cavities, slag inclusion, heavy oxidation scale and abnormal forming deformation.

✅ Witness Mechanical Performance Tests

On customer demand, our inspector witnesses hardness test, tensile test, impact test and metallographic examination, records data and captures testing photos.

✅ Full Records & Formal Inspection Report

All site photos, spectroscopy records, dimension data and defect evidence will be collected into a detailed English during-production inspection report for your review.

Detect material and process problems in advance to avoid mass scrap. Arrange during-production witness & PMI inspection for your forging parts orders with CGF Inspection.