📋 Case Study

Medical Implant CNC Batch Cycle Time Reduction

Average cycle time of 92 minutes exceeded target by 37%, limiting throughput

🏗️ Project Overview

Precision machining of stainless steel orthopedic knee implants (ASTM F138)

🎯 Challenge

Average cycle time of 92 minutes exceeded target by 37%, limiting throughput

🔧 Design Approach

G-code macro optimization, simultaneous multi-axis toolpath consolidation, and feedrate profiling based on rigidity mapping

📐 Design Diagram

AI-generated project design illustration

📐 Key Calculations

Non-Cut Time Ratio

Non-Cut Time / Total Cycle Time

Result: 41%

Primary bottleneck identified

Dynamic Rigidity Index

Stiffness × Natural Frequency

Result: 1.42 × 10⁶ N·Hz/m

Allowed 28% feedrate increase in low-rigidity zones

📊 Results

Cycle time reduced to 58 min (37% improvement), energy consumption down 22%, first-pass yield increased from 89% to 98.6%

💡 Lessons Learned

• •Non-cut time dominates precision medical machining
• •Rigidity-based feedrate profiling prevents chatter without sacrificing accuracy

✅ Key Takeaways

• 1Non-cut time dominates precision medical machining
• 2Rigidity-based feedrate profiling prevents chatter without sacrificing accuracy