NON-TOXIC AND BIO-COMPATIBLE Type 2 Titanium …

1 Metal surfacinganodizingALUMINUM AND Titanium FINISHING AND anodizing FOR PROTECTION, WEAR AND APPEARANCET here are other factors which may affect the application of anodized coatings or the base product after anodizing . Please consult with our technical support staff. 2003 DANCO44 La Porte , CA 91006626-445-3303 Fax: 626-445-31351750 Monticello CourtOntario, CA 91761909-923-0562 Fax: 909-923-5325401 W. RowlandSanta Ana, CA 92707714-557-2411 Fax: 714-557-0408 NON-TOXIC A ND BIO-COMPATIBLEType 2 Titanium Anodizing2450 Deelyn , IN 46580574-269-5900 Fax: 574-269-5966 Visit our web site: w w treatment of Titanium and Titanium alloys forimplant products known as Type 2 anodization istypically performed to AMS 2488.

2 SAE Internationalnow has responsibility for this specification and thecurrent revision is dated June 2000. As this process iscovered under an Aerospace Material Specification, it wasfirst developed for treatment of parts associated with theair and space industries. The properties most oftendiscussed, increased lubricity, anti-galling, and increasedfatigue strength were not associated with the medicalindustry. As the advantages of anodizing titaniumbecame apparent in orthopedic implants, the popularityand acceptance of this coating grew. In addition, toxicityand biocompatibility were not an issue.

3 The anodizationprocess accelerates the formation of an oxide coatingunder controlled conditions to provide the desired coating may be created using various electrolytes wherethe parts are made positive (anodic) with a correspondingnegative (cathodic) terminal attached to a power solutions are proprietary and may vary fromone processor to another but must be of pH 13 or higher toconform to specification requirements. Steps in our processare as follows:1. Parts are first racked appropriately on Titanium racksto create electrical Parts are alkaline cleaned to remove any The parts are immersed in the electrolyte, current is applied with the voltagebeing raised to maintain the required current densityduring processing.

4 This voltage varies for differentalloys and with the capacity and design parameters ofthe installed equipment and is Parts are rinsed, dried and the excess slough isremoved. As the process creates a penetratingcoating, there is no measurable dimensional changewhen measured with a micrometer accurate to ( m).5. Quality inspection is performed on completedparts. Per AMS 2488, Anodic coating, asreceived by purchaser, shall be continuous,smooth, adherent to basis metal, uniform in textureand appearance, and free from burned or powderyareas, loose films, discontinuities, such as breaks orscratches, except at contact points or other damage orimperfections detrimental to usage of the coating.

5 Control factors include: Cleaning and surface preparation. Solution limits and control (proprietary). Voltage limits and control (proprietary). Temperature limits and control. Post anodizing treatment and packaging