In CNC Precision Machining, What Are “Sandblasting,” “Blackening,” “Galvanizing,” “Polishing,” and “Welding”
Sandblasting:
In CNC precision machining, sandblasting is a surface treatment technique where abrasive particles (such as sand or glass beads) are projected at high pressure onto a workpiece to clean, deburr, or increase surface roughness. This method is often used to remove oxidation layers, enhance the appearance, and improve adhesion for subsequent processes.
Blackening:
Blackening in CNC precision machining is a chemical treatment process that adds a black protective layer to metal workpieces, mainly steel. This surface treatment enhances corrosion resistance and offers a certain aesthetic appeal, commonly used in parts for optics, automotive, or semiconductor equipment.
Galvanizing:
Galvanizing in CNC precision machining is a surface treatment process that coats steel surfaces with a layer of zinc, providing robust corrosion protection. This treatment is commonly applied in outdoor or humid environments to extend the life of the workpiece.
Polishing:
Polishing in CNC precision machining refers to the process of smoothing a workpiece’s surface to achieve a bright, mirror-like finish. Using physical or chemical methods, this process removes surface roughness or unevenness, ensuring a smooth and reflective surface, particularly important in optical jigs and high-precision equipment components.
Welding:
In CNC precision machining, welding involves joining metal or other material parts together using high temperatures or pressure. This technique provides strong, durable joints and is commonly used in sheet metal fabrication, automotive parts, and other applications requiring sturdy connections.
Yong-Yi Tech offers a diverse range of products and services, including semiconductor component machining, automation equipment component machining, sheet metal welding, automotive parts machining, aerospace component machining, and optical jig machining. Material categories include aluminum, steel, stainless steel, and engineering plastics, with a comprehensive service process from material supply to final production, including material sourcing, machining, surface treatment, measurement, and assembly. Surface treatment options include anodizing, nickel plating (chemical), grinding, heat treatment, sandblasting, blackening, and chrome plating.