'In the field of medical implants, surface quality directly determines the patient's recovery efficiency.' - Orthopedic medical device expert"
Processed products
Workpiece material : 3D printed titanium alloy TC4
Processing features : Milling outer contour (including complex curved surfaces)
Workpiece size : 46×48×16mm
Processing background and industry difficulties
Industry background :
Titanium alloy TC4 has become the core material for orthopedic implants due to its high strength, biocompatibility and bone tissue fusion ability. 3D printing technology can customize porous mesh structures (porosity > 70%), but processing faces three major challenges:
Short tool life : Titanium alloy has poor thermal conductivity, cutting temperature exceeds 800℃, and tool wear rate increases by 3 times;
Micropore burr out of control : Traditional milling produces burrs > 50μm on the edge of the mesh, which requires manual grinding; Pollution risk : Cutting fluid penetrates into nano-scale pores (20-100μm), causing biological contamination risks.
MID Solutions
Based on medical-grade processing standards, MID has developed an ultrasonic green precision milling system, which includes:
20kHz ultrasonic vibration processing: Reduce cutting force by 60% and inhibit burr generation;
Supercritical CO2 internal cooling technology: -50℃ low-temperature airflow to achieve dry cutting and eliminate pollution;
Five-axis linkage path optimization: Intelligently avoid stress concentration areas in porous structures.
Processing Advantages
• Zero manual deburring: edge burr height <5μm, meeting ISO 20160 medical implant standards
• Surface quality leap: roughness Ra reduced from 1.6μm to 0.4μm, promoting osteoblast attachment
• Sharp reduction in tool costs: life increased from 15 pieces/tool to 120 pieces/tool
Processing Comparison
About MID
MID (Mid Precision) has been deeply involved in the field of medical and aerospace precision machining for more than 10 years, providing enterprises with implant machining equipment and process solutions, and promoting the upgrading of the orthopedic device industry with the "zero pollution, zero defect" standard.
Industry Value: With the surge in demand for personalized orthopedic surgery, MID's technological breakthroughs have cleared manufacturing barriers for the large-scale clinical application of 3D printed titanium alloy implants, shortening the patient's recovery cycle by more than 30%.
