CGF During-Production Inspection for forging parts
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)...
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.
Complete Forging Parts During-Production Inspection Checklist
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.
What We Check
- Early defect detection at 10–50% production output
- Production-line and process-stability review
- Workmanship, materials and key components in process
- Inline functional checks on finished sub-lots
- Corrective-action advice before mass output
When To Book This Service
- Production has reached 10–50% completion
- You need to correct issues before they scale
- For complex products or a first-time supplier
How CGF Conducts It
- We set checkpoints with your factory schedule
- Inspector visits during active production
- Samples are drawn from the live line for checks
- Real-time feedback is shared with you and the factory
- A progress report follows within 24 hours
Why It Matters
- Fix root causes early — avoid costly rework later
- Reduce the defect rate across the whole order
- Keep the shipment on schedule
- Document process control for your records
Industries We Cover
Where We Operate
Zhejiang, Jiangsu, Shanghai, Guangdong (Dongguan / Shenzhen / Foshan / Shunde), Qingdao, Sichuan, Chongqing and across China.
Inspection Standards We Work To
| Standard | What it covers |
|---|---|
| AQL (Acceptance Quality Limit) | Defines the maximum number of defective units acceptable in a random sample — the basis of our sampling plans. |
| ANSI/ASQ Z1.4 | U.S. standard for sampling by attributes (single, double and multiple sampling). |
| ISO 2859-1 | International general standard for sampling by attributes, equivalent to ANSI/ASQ Z1.4. |
| ISO 9001 | Quality management system baseline referenced in our factory audits. |
| IEC / EN / ASTM | Product-specific safety & performance references applied per your specification. |
Every CGF assignment includes
- An independent, on-site inspector working for you — never the factory
- Internationally recognised AQL sampling (ANSI/ASQ Z1.4 · ISO 2859-1)
- On-site photos embedded in every report
- A detailed, bilingual English inspection report within 24 hours of the visit
