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Afan Quality Assurance

turbocharger Quality Assurance System

1. Incoming Inspection-Dimension and outline inspection

Testing the spare parts by using the three-coordinate measuring machine(CMM), optical

imaging instrument, roundness and cylindrical instrument,and then make records.No alt text provided for this image

Incoming Inspection-Physical and mechanical properties test.

Testing the sample by tensile testing machine and hardness tester,after geting the data and result,keep records.No alt text provided for this image

Incoming Inspection-Metallographic analysis.

Analyzing the metallographic structure of three kinds housing,turbine wheel and compressor wheel by using the advanced metalloscope,

to inspect the material is qulified or not.

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Incoming Inspection-Analysis of chemical constituents

Analyzing the chemical constituents of compressor wheel,turbine wheel and V-band by Brooke Spectrometer(Germany) and Carbon Sulfur Analyzer, to inspect the parts are qualified or not.

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Incoming Inspection-Fluorescent flaw detection( Zyglo) and ultrasonic flaw detection

The turbine wheel and compressor wheel need to pass the fluorescent flaw detection; The forged steel shaft need to pass the ultrasonic flaw detection;If the result is qualified,the parts will send to next process step

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2. Machining process inspection

First part inspection, after machining or assembling the first part,operator will have self inspection according to the process procedure requirements.If the self inspection is qualified,the inspectors will scrutinize it,after confirming and issue the first part cetificate,and then start quantity production.No alt text provided for this image

Mutual Inspection and Patrol Inspection

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The operator abide by the rule of mutual inspection during the process, the inspector do patrol inspect for real-time monitoring quality and then record.

3. Machining process inspection- Monomer dynamic balancing

The processed turbine shaft assembly and compressor wheel will have monomer dynamic balancing test.No alt text provided for this image

Machining process inspection- Cleaness Inspection

The processed parts will be cleaning by ultrasonic cleaners,after cleaning,the inspector will test the cleaness of the parts by the testing equipment,and then keep records .If the testing result is qualified,the parts will be sent to assembly workshop,if unqualified,will be cleaned again.No alt text provided for this image

Machining process inspection-Identification of Product

During the assembling,according to the product Identification & Traceability Control Procedures,will mark the batch numbers or date on the shaft or CHRA and the nameplate .

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Machining process inspection-Overall dynamic balancing test

In order to ensure the assembly quality, the assembled CHRA will be sent to do overall dynamic balancing test.No alt text provided for this image

Machining process inspection-Exfactory testing

The turbo will be installed on the test rig in test center, simulating the engine running together with turbo, to do exfactory testing as well as performance test, such as oil leak, thrust, splitting, inclusive, safety and so on.No alt text provided for this image


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Phone: +86 15921484749

Tel: +86 21 67968098

Email: sales@afanauto.com

Add: NO.2039 longhao road, jinshan district, shanghai