For a precision turned component, there are many surface finishing services that can increase or decrease the metal’s surface layer. These finishing methods might be used for the part’s improved function, for aesthetic purposes, or to protect it from the elements.
Precision machined parts created on CNC Swiss and CNC turning equipment can be finished using the majority of finishing processes. To make sure that the best possible method combination is being taken into account, our engineering and quality teams will need to examine the material, the part design, and the final requirements.
Here is a brief description of a few of the most popular kinds of finishing services:
Bead Blast –
A precision-machined component’s surface can be bead blasted to provide a consistent matte (satin) finish and get rid of tool markings that are frequently apparent after machining. When the component will be displayed, this is frequently utilized. The component is, as the name implies, bombarded with tiny beads from a pressurized gun. A smooth surface is left after some material has been removed.
Black Oxide –
A conversion coating called black oxide darkens the surface of the precisely machined component. It is frequently used for appearance, to reduce light reflection, and minor corrosion resistance. A black oxide treatment is necessary for many parts of the weapons industry to lessen the light reflection. In our blog post about black oxide, we go into more detail about this procedure.
Burnishing –
A precision-machined component’s surface finish, size, or surface hardness can be changed and given a mirror finish by the forming process of burnishing. It can be utilized to increase corrosion resistance, get rid of surface poreiness, lessen fatigue failure, and lessen surface flaws. A hardened and coated ball or roller is used to deform (or shape) the component’s surface according to the requirements.
Case Hardening –
Case hardening is a technique used to make a metal component’s exterior harder while maintaining the inside (core) metal’s original, softer form. As a result, the component’s outer surface has increased wear resistance while the component’s core can absorb pressures. Depending on the material and requirements, there are numerous different kinds of case hardening techniques. Flame hardening, carburizing, and nitriding are the most popular processes for case hardening precision machined components. The most frequent method, flame hardening, involves rapidly heating the component (or bar stock) to a predetermined temperature and then fast cooling it to form a layer of martensite on the surface.
