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Cobalt-Chromium-Molybdenum (Co-Cr-Mo) alloy is widely used in the medical industry for artificial joints due to its excellent biocompatibility, wear resistance, and corrosion resistance. However, its machining presents several challenges:
* The material has very high strength and hardness, resulting in large cutting forces and rapid tool wear.
* Its low thermal conductivity prevents effective dissipation of cutting heat through chips and the workpiece, causing heat concentration at the cutting edge.
* Pronounced work hardening during machining further accelerates tool wear.
* The material exhibits high stickiness at high temperatures, leading to built-up edge formation, poor surface roughness, and difficulty in maintaining dimensional accuracy.
Solution Features
* For difficult-to-machine materials in specialized industries, Worldia’s customized superhard tools can provide efficient and reliable machining solutions.
* In this case, based on the characteristics of Co-Cr-Mo material and actual working conditions, Worldia selected the PNS2007 grade, which offers excellent wear resistance and thermal stability, combined with specially designed cutting edge geometry. This helped the customer extend tool life, reduce tool change frequency, and improve machining efficiency.
* Practice has proven that with customized tooling solutions, Worldia can help customers reduce tooling costs and successfully achieve localization of cutting tools.