Processing of artificial knee joints - Innovative solutions for orthopedic implants

15 September 2023
Innovative solutions for orthopedic implants
Cobalt-chromium-molybdenum alloy (CoCrMo), the raw material for orthopedic implants, belongs to the S2 high-temperature alloy material group.
How to deal with the challenge of difficult processing?
Ultra-high molecular polyethylene material, how to process it to quickly meet the surface finish requirements?
artificial knee joints
Tibial Baseplate
The bottom surface of the tibial tray requires extremely high surface quality and precision to ensure a traceless mirror surface after sandblasting and meet the requirements of biocompatibility with the human body.
In the solution provided by MoreSuperHard for processing orthopedic implants, the milling cutter used adopts a unique wiper design, which eliminates the need for polishing and direct sandblasting after processing, thus saving processing time.
Ball nose milling cutter vs. form milling cutter
The meniscus plastic liner is made of ultra-high molecular polyethylene, and deburring and large arc surface finishing are particularly important during the processing.
The large arc surface forming fine milling cutter can make the processing cycle of this part <10s and the surface quality Ra<0.2.
Compared with the traditional processing method of ball end milling cutter, the processing time can be reduced from 20 minutes to 20 seconds.
---EDITOR: Miya Ma/Cynthia Lee

---POST: Cynthia Lee

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