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Quality control of supplier defects in a precision industry: a case study approach

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Listed:
  • António Rocha
  • Beatriz Martins
  • João Cardoso
  • João Rodrigues
  • André
  • Tinoco

Abstract

This research paper analyses the quality performance of a supplier providing components AV3, AV4, and AV5 to the high-precision manufacturing industry. Defect analysis by category reveals common issues across the components, emphasising the need for stringent quality control measures. The defects analysis per period identifies patterns, such as higher rejections in the second quarter of 2020 and 2021, and a higher number of defects in AV5. Specific actions, including the 8D report, quality control reports, quality control plan, and report of improvement actions, have been requested from the supplier. Adherence to VDA 6.3 and IATF 16949 standards is recommended. By implementing these actions, the aim is to mitigate defects, improve component quality, and strengthen the supply chain. Emphasising data analysis and statistical process control enables proactive requests for action to assure the quality of components supplied.

Suggested Citation

  • António Rocha & Beatriz Martins & João Cardoso & João Rodrigues & André & Tinoco, 2025. "Quality control of supplier defects in a precision industry: a case study approach," International Journal of Productivity and Quality Management, Inderscience Enterprises Ltd, vol. 45(3), pages 355-376.
    • Handle: RePEc:ids:ijpqma:v:45:y:2025:i:3:p:355-376
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