Metal finishing refers to the final production processes applied to metal parts and fasteners to produce finished products. In many cases, this involves coating, plating, and other finishing processes that equip the base metal surface with desirable characteristics like corrosion resistance, aesthetic appeal, hardness, durability, abrasion resistance, or lubrication.
Finishing processes are commonly applied to all different kinds of fasteners, including dowel pins, retaining rings, key stock and machine keys, and more. Depending on the fastener in question, there are many different types of metal finishes that could protect and elevate the fastener's performance.
Type of Metal Finishes
There are several types of metal finishes, each utilizing different metal finishing techniques. The most popular types can be broken down into four main groups:
Coating Finishes: Coating either introduces or creates a new substance to provide a protective layer to the metal fastener. Common coatings include:
· Conversion Coating (including phosphate, black oxide, and chromate)
· Powder Coating
· Dip-Spin Coating
· Paint
· Hot-Dipped Galvanized
· Armorgalv
· Mechanical Zinc Plating
Plating Finishes: Plating is a process that fuses another metal to the base metal surface. The two most common processes are:
· Electroplating
· Electroless Plating
Oxidizing Finishes: This refers to a group of finishes that create an oxide layer to protect the base material. There are three common types of oxidizing finishes:
· Anodizing
· Passivation
· Electropolishing
Mechanical Finishing Processes: These are processes that physically roughen up the surface of a metal fastener, typically in preparation for a secondary metal finish. They include:
· Metal Brushing
· Buff Polishing
· Metal Grinding
· Vibratory Finish
Wenqi Machinery leverag advanced equipment, craftsmanship, comprehensive support, and professional service, specializes in the production of needle rollers, cylindrical rollers, dowel pins and universal joints. You can find these finish options in the search results pages. If you don't see what you're looking for, contact our Sales Team to get in touch with Engineering Support.
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