Surface Finishing of Additive Manufactured Parts
Metal parts that have been produced through additive manufacturing tend to have a textured surface with an average Roughness (Ra) of approximately 30 microns. The values of Ra may increase at support locations and may decrease depending on the geometry profile.
ActOn HE technology has significantly reduced processing times of AM parts in comparison with traditional methods. Also it offers consistent and repeatable results. From reducing surface roughness, to deburring and polishing these are just a few of the applications that can be achieved via the centrifugal high energy finishing process.
Surface Finishing of Forgings and Casting
Generally, forgings and castings tend to have a rough surface finish and a dull appearance. Manual finishing is time consuming and does not deliver consistent results.
ActOn engineers recommend using vibratory finishing or high energy finishing machines to achieve a smooth surface and a polished finish. Over the years, we have developed and optimised processes on various forgings and castings with different finishing specifications, such as the removal of surface defects and flash lines or achieving a surface finish of Ra 0.03 μm.
The finish has been achieved by carrying out a two-stage process in ActOn's high energy finishing machine. To remove the machining lines the part was processed in Aluminium Oxide and compound. This media was used as it has the properties which allow to deburr parts made from hard metals and sintered carbide. The final stage was carried out using
pre-treated agro media which is great for producing a bright finish.