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Surface treatment seminar introduction
Surface treatment seminar introduction
Surface treatment seminar introduction
Surface treatment seminar introduction
Surface treatment seminar introduction
Surface treatment seminar introduction
Surface treatment seminar introduction
Surface treatment seminar introduction
Surface treatment seminar introduction
Surface treatment seminar introduction
Surface treatment seminar introduction
Surface treatment seminar introduction
Surface treatment seminar introduction
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Surface treatment seminar introduction

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surface treatment seminar's introduction

surface treatment seminar's introduction

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Transcript

  • 1. ahmadkhan_99@hotmail.com 1
  • 2. • Introduction Process Design- OEM Perspective Process Operation – Operator Perspective Process Qualification Concerns Product Quality Concerns How to Improve Process Quality Focus Point – Process Criticalities 2
  • 3. • Seminar Overview Surface Treatment – An Overview Pre-Processes & Criticalities Plating Processes & Criticalities Post Processes & Criticalities Review of Some Existing Plating Processes 3
  • 4. Processes Design- OEM Perspective A process is designed after extensive studies, research work verified by experiments Thus; each and every step as described by the OEM has its own importance and implications; may it be a simple / repetitive step e.g too many hot-wash, cold-wash, blowing dry air or ensuring continuity of some steps in the process 4
  • 5. Processes Operation – Operator Perspective Process operators take the process as a set of certain steps to be performed with a sole concern of acceptance / rejection of out-coming products Operators, over a period of time, based on their observations / experience start taking shortcuts / omitting process steps, which they think, do not have any effect on the product & Their assumptions remain true due to various reasons like non-detection of underlying adverse effects, incapacitation of process control parameters being monitored to show the effects 5
  • 6. Process Qualification Concerns Specifications/requirements of process qualification as specified by the OEM be met/ensured/monitoredProduct Quality Concerns Is the product coming out of a process a Quality Product? Who/How a product will be defined as Quality Product. Answer is “ in our case Products meeting OEM’s requirements & in general Products meeting User’s requirements” 6
  • 7. How to Improve Process/Product Quality Process Qualification Implementation Intelligent Embedding of Quality Control Element Knowing What, Why & How of the Process Process Criticalities Awareness 7
  • 8. Focus Point – Process Criticalities Process Criticalities can only be understood / ensured through Knowing What, Why & How of the Process 8
  • 9. Surface Treatment An Overview Finishing and Polishing Coatings Deposition Organic Coatings 9
  • 10. Pre-Processes Surface PreparationMechanical Preparation Blast Finishing Shot Peening Mass Finishing Polishing BuffingChemical PreparationPre-process BakingPreheatingEffects of Discontinuity in processEffects of Poor Cleaning process 10
  • 11. Plating Process & CriticalitiesWhat & Why of ElctroplatingFactors Influencing Electro Deposition Current density Cathode Efficiency Agitation Bath composition & Solution concentration Water Requirement The presence of impurities & FiltrationHydrogen Embrittlement and its Effects 11
  • 12. Post Processes & Criticalities Drying with Air (Hot/Cold) Post Process Baking Hot / Cold Water Rinse Heat Treatment Inspection Quality Control 12
  • 13. Review of Some Existing Plating Processes Lead – Indium Zinc Plating 13

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