ELECTROPOLISHING
AMF has just recently activated a $150,000, high purity DI water electropolishing line. Samples, Trial Runs and Facility Tours are Available.  Prototype or High Volume 300 & 400 Series Electropolishing. Services include:

• Edgeforming of Surgical Blades
• Burr Removal
• Sharpening - Orthopedic Devices, Arthoscopic Devices, Endoscopic Devices
• Passivation
• Instrumentation Controls

• Electropolishing system works it's wonders by smoothing, polishing, and deburring metal surfaces in an electrolytic bath. 
• Removes high points on the metal surface while producing a uniform high luster on the metal surface. 
• Metal part is immersed in a liquid media and subjected to direct current. 
• The metal part is made anodic (+) and a metal, usually lead, copper. or stainless steel, is made chathodic (-). 
• The direct current flows from the anode to the cathode removing metal ions at a controlled rate. 
• The amount of metal removed is dependent upon the specific bath, the temperature, speed, and the particular alloy being electropolished. 
• Unlike conventional mechanical finishing systems. this process does not smear, bend, stress or fracture the crystalline metal surface to achieve smoothness or lustre.
• Removes metal from the surface producing a unidirectional pattern that is stress and occlusion-free, microscopically smooth, and often highly reflective. 
• Improves corrosion resistance and passivity are achieved on many ferrous and some nonferrous alloys. 
• Used for micro- and macro-deburring, as this reverse plating process selectively removes metal ions from the high points on the surface without etching it.

• A Polishing & Deburring System for Ferrous & Non-Ferrous Metals. 
• With this unique system, the following metals and alloys can be electropolished and deburred in one step: 200, 300, 400 Series Stainless Steel Certain Nonsilicon Aluminum Casting Alloys Low Carbon Steel Wrought Aluminum Alloys High Carbon Steels Inconel Low-Alloy Steels Monel Copper and Beryllium-Copper Alloy Hastelloy Brass Waspalloy Bronze Titantium Nickel Compressor Blade Alloys Nickel-Silver Gold 
• Only limited success can be achieved with cast metals. Generally alloys containing silicon, sulfur or carbon, in appreciable amounts, will not elecrpollish. 
• Stainless steel investment castings are well suited for this process, but Aluminum and Zinc die castings are not. 
• The type of solution, its metal removal rate solution control techniques and recommended current density range for each metal or alloy are proprietary

PASSIVATE

• A process designed to remove foreign metals from the surface of stainless and corrosion resistant steels by immersing a cleaned and desealed steel part in a solution of nitric acid and oxidizing salts. 
• This process dissolves exposed surface iron and produces a transparent film of corrosion-resistant chromium oxide. 
• Does not change the appearance of the base metal. 
• Type I Low Temperature Type 11 Moderate Temperature Type III High Temperature Type IV For Steels containing large amounts (0.15 % ) of sulfur or selenium. Type V Anodic - For high carbon martensitic Type VI Low Temperature.