📋 Case Study

Aerospace Forging Facility: Closed-Loop Heat Treatment ROI

Material rejection rate of 9.2% due to inconsistent microstructure; NADCAP non-conformance trending upward

🏗️ Project Overview

Installation of AI-controlled atmosphere furnaces with real-time thermocouple mapping and adaptive soak algorithms

🎯 Challenge

Material rejection rate of 9.2% due to inconsistent microstructure; NADCAP non-conformance trending upward

🔧 Design Approach

Closed-loop thermal control with digital twin validation, automated lot traceability, and SPC integration

📐 Design Diagram

Challenge• 9.2% rejection rate• NADCAP non-conformance ↑Impact• $374K/yr scrap reduction• $89K/yr audit cost savedClosed-Loop SystemDigital TwinValidationAutomated LotTraceabilitySPC IntegrationThermalControl LoopReal-timeFeedbackStatisticalProcess Control

AI-generated project design illustration

📐 Key Calculations

Scrap Reduction ROI

9.2% → 2.1% scrap × $4,200 avg. forging value × 12,500 parts/yr
Result: $374,000/yr
Direct yield improvement

NADCAP Audit Cost Avoidance

Avg. corrective action cost per finding × 5 findings/audit × 2 audits/yr
Result: $89,000/yr
Compliance risk mitigation

📊 Results

NPV @ 6% over 7 years: $2.81M; IRR: 28.4%; Microstructure Cpk improved from 0.92 to 1.87

💡 Lessons Learned

  • Digital twin validation shortened commissioning by 3 weeks
  • Thermocouple redundancy prevented 3 potential batch rejections
  • SPC integration enabled real-time process drift detection

Key Takeaways

  • 1Digital twin validation shortened commissioning by 3 weeks
  • 2Thermocouple redundancy prevented 3 potential batch rejections
  • 3SPC integration enabled real-time process drift detection