Choose The Right CNC Metal Finish for Your CNC Turning Parts.

CNC Turning can produce parts with tight tolerances (up to ± 0.025 mm) and fine detail from a variety of metal or plastic materials.

Due to the subtractive nature of CNC, minor tool marks will be visible on the surface of the part after machining. A number of post-processing and finishing methods can be applied to improve the surface roughness, visual properties and wear resistance of the CNC turning parts.

In this article we discuss the most common metal CNC finishes to help you select the most suitable surface finish for your application.

Material	Surface	Choose the right surface to your CNC turning parts
Aluminum Material Series	As Machined	~125 RA µin (3.2 RA µm). Minor tool marks will be visible on the part.
	Bead Blasted	Bead blasting adds a uniform matte or satin surface finish on a machined part, removing all tool marks.
	Anodized Clear or Color	Anodizing adds a thin, hard coating on the surface of aluminum parts.
	Hard Anodized	Hard anodizing produces a thicker ceramic coating on the surface
	Power Coated	Powder coating adds a thin layer of strong paint on the surface of a part.
	Brushing	Brushing is produced by polishing the metal with grit.
	Polish	Polishing can make products achieve gloss surface roughness
	Painted	Painting adds a thin layer of strong on the surface of a part.
	Alodine	Alodine could prevent aluminum from oxidizing .

Material	Surface	Choose the right surface to your CNC machining parts
Stainless Steel Material Series	As Machined	~125 RA µin (3.2 RA µm). Minor tool marks will be visible on the part.
	Brushing	Brushing is produced by polishing the metal with grit resulting in a unidirectional satin finish.
	Polished	Polishing can make products achieve vey glossy and smooth surface roughness
	Black Oxided	Black Oxided is a conversion coating for ferrouns and non-ferrous materials
	Passivated	Passivation is the process of treating or coating a metal in order to reduce the chemical reactivity of its surface.
	Chromate Plated	It is used for decorating purpose,chrome plating can also serve as a layer of protectin as well. It is applied to metal objects when three is an increased opportuntiy for corrosion to occur
Material	Surface	Choose the right surface to your CNC machining parts
Steel & Alloy Steel Material Series	As Machined	~125 RA µin (3.2 RA µm). Minor tool marks will be visible on the part.
	Zinc Plating	Zinc plating, a process also known as galvanization, is the deposition of a thin layer of aluminum onto a metal component to provide a protective layer.
	Nickel Plated	Nickel electroplating a technique of electroplating a thin layer of nickel onto a metal object Electroless nickel plating, an auto-catalytic chemical technique used to deposit a layer of nickel-phosphorus or nickel-boron alloy on a solid workpiece
	Chromate Plated	It is used for decorating purpose,chrome plating can also serve as a layer of protectin as well. It is applied to metal objects when three is an increased opportuntiy for corrosion to occur
	Heat Treated	Heat treating can soften metal, to improve formability. It can make parts harder, to improve strength.
	Black Oxided	Black Oxided is a conversion coating for ferrouns and non-ferrous materials
	Phosphate	Black Oxided is a conversion coating for ferrouns and non-ferrous materials
	Power Coated	Powder coating adds a thin layer of strong, wear and corrosion resistant protective polymer paint on the surface of a part. Available in a large range of colors.
	Real Gold Plating	Gold plating is a method of depositing a thin layer of gold onto the surface of another metal, most often copper or silver (to make silver-gilt), by chemical or electrochemical plating.
Material	Surface	Choose the right surface to your CNC machining parts
Brass & Copper Material Series	As Machined	~125 RA µin (3.2 RA µm). Minor tool marks will be visible on the part.
	Nickel Plated	Nickel electroplating a technique of electroplating a thin layer of nickel onto a metal object Electroless nickel plating, an auto-catalytic chemical technique used to deposit a layer of nickel-phosphorus or nickel-boron alloy on a solid workpiece
	Chromate Plated	It is used for decorating purpose,chrome plating can also serve as a layer of protectin as well. It is applied to metal objects when three is an increased opportuntiy for corrosion to occur
	Real Gold Plating	Gold plating is a method of depositing a thin layer of gold onto the surface of another metal, most often copper or silver (to make silver-gilt), by chemical or electrochemical plating.

Worthy Hardware is a CNC manufacturing and sheet metal fabrication company,including CNC machining services,CNC milling services, CNC turning services, laser cutting services and stamping services.Call us +86-76989919645 or email us [email protected] for more discounts for your projects.