When it comes to CNC machining, securing different components together is of utmost importance. This is where fasteners play a crucial role. Fasteners are the unsung heroes that hold everything together in various industries such as automotive, aerospace, construction, and more. In this article, we will delve into the types of fasteners used in CNC machining and understand their significance.
Screws are one of the most commonly used fasteners in CNC machining. These are threaded cylindrical rods with a head on one end and a helical groove called threads winding around it. They efficiently hold material pieces together, often by penetrating them. Different screw types include machine screws, self-tapping screws, wood screws, set screws, and more. Material selection for screws depends on factors like strength requirements, corrosion resistance, and temperature resistance.
Similar to screws, bolts have external threading along their shank. However, unlike screws, bolts do not have a tapered point or a slotted head. Instead, they require nuts to secure material parts together. Bolts come in a wide range of sizes and designs, including hex bolts, carriage bolts, eye bolts, and anchor bolts. The choice of bolt type depends on specific applications, load-bearing capacity, and environmental conditions.
Nuts complement bolts and form an essential part of CNC machining fasteners. These small, usually hexagonal-shaped hardware items feature internally threaded holes. Nuts securely fit onto bolts, forming a strong joint connection. Just like screws and bolts, nuts also come in various materials and configurations to match diverse application needs.
Washers are flat, circular disks with a hole in the center. They are placed between a nut/bolt head and the material surface to provide additional stability and prevent damage. Washers distribute the load evenly and reduce the risk of surfaces getting crushed or deformed due to excessive force applied during tightening. The most common types of washers include flat washers, lock washers, split washers, and spring washers.
Rivets are permanent fasteners used extensively in CNC machining. They are cylindrical metal pins with a head on one end. During installation, rivets are inserted through pre-drilled holes and then their free ends are flattened into a second head using pneumatic tools. This creates a tight joint connection without requiring any additional fittings. Rivets find applications in panel construction, aircraft assembly, automotive manufacturing, and more.
6. Clips and Clamps:
Clips and clamps provide temporary fastening solutions in CNC machining processes. These are versatile devices that can be easily installed and removed when necessary. Clips typically grip onto materials while clamps secure objects by applying pressure. Their adjustable nature makes them perfect for holding components in place during machining operations.
In CNC machining, choosing the right type of fasteners is crucial to ensure structural integrity, functionality, and safety. Whether it's screws, bolts, nuts, washers, rivets, or clips/clamps, each fastener has its unique purpose and application. Understanding these different types and their characteristics allows engineers and manufacturers to make informed decisions during the CNC machining process. So, next time you admire a complex structure or machinery, remember that it owes its strength and stability to the unsung heroes called fasteners. CNC Milling