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Nitinol Electropolishing

Nitinol Electropolishing

Metal Finishing Services for Nitinol Alloy

With its high elasticity and biocompatibility, Nitinol is used in a wide variety of applications, with a majority of them requiring the alloy to be free of surface defects, corrosion and burrs. Nitinol electropolishing removes these imperfections, including any contaminants embedded in the alloy’s surface, leaving behind a part that is smooth, clean, and suitable for use in mechanical, electrical and medical applications.

Biocompatibility and Nitinol Electropolishing

Because Nitinol is highly biocompatible, it is frequently used for medical applications like surgical implants, catheters and exploratory devices. It is also a commonly-used alloy for orthodontics. In all of these applications, embedded contaminants and surface imperfections can compromise biocompatibility and also cause unexpected part failure, corrosion and other complications.

Nitinol electropolishing services use an electrochemical process to remove a uniform amount of surface material from a part. eliminating problematic imperfections. This process eliminates burrs, jagged surfaces and contaminants embedded in the surface. Unlike other metal finishing services, it leaves behind a smooth surface, free of the micro pits and cracks that would become initiation sites for corrosion.

Comparison to Other Metal Finishing Services

While electropolishing Nitinol isn’t the only method used to finish parts made of this alloy, it is superior to other metal finishing services. Plating and other types of coatings create an artificial layer on the surface that can wear over time, unlike electropolishing that leaves the base metal on the surface. Nitinol is used for a wide range of mechanical and electrical applications, such as springs, wires, antennas and more. The electropolishing gives the material the smooth finish it needs for superior longevity and performance.

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