Exploring the Various Types of Fasteners in CNC Machining--cncmass.com(model toy Ulysses)
- source:PERFSO CNC Machining
Fasteners play a crucial role in CNC (Computer Numerical Control) machining, facilitating the assembly and disassembly of components. CNC machining involves precise cutting, shaping, and drilling materials with the help of computer-controlled machines. This article aims to delve into various types of fasteners used in CNC machining processes, their functions, and how they are produced.
1. Bolts and Screws:
Bolts and screws are essential fasteners utilized in numerous industries for joining two or more components together. Bolts are typically larger and feature external threading, requiring the use of nuts to secure tightly. On the other hand, screws possess internal threading, allowing them to be fastened directly into tapped holes without any additional attachment.
To produce bolts and screws, CNC machines are programmed to create different thread designs accurately. The process involves feeding raw material into the machine, which then cuts the grooves using specialized tools, resulting in precision-made threads on the periphery of the fastener.
Nuts are widely employed fasteners that work in conjunction with bolts or screws. They provide support and enhance the overall stability of the assembled parts. Just like bolts, nuts can also be manufactured through CNC machining. The machine executes precise movements to form the internal threading required to fit perfectly onto associated bolts or screws.
Rivets are permanent mechanical fasteners extensively used when welding or screwing is not feasible due to structural limitations. These fasteners consist of a cylindrical shaft with a head at one end. To install rivets, holes are drilled in the materials being joined, and a rivet gun is used to pull the shaft end from the opposite side until the head expands, securing the assemblies firmly in place.
In CNC machining, rivet production primarily involves manufacturing the solid cylindrical shafts in bulk quantities. Afterward, the shafts can be easily shaped into various dimensions and lengths using CNC lathes or milling machines.
Washers are flat metal discs often placed between a fastener and a substrate to evenly distribute loads, shield surfaces from damage, and prevent loosening due to vibrations. CNC machining allows for the precise cutting of washers in different thicknesses and diameters based on specific requirements.
5. Clips and Clamps:
Clips and clamps provide temporary or semi-permanent fastening solutions that can be removed without damaging the components. These fasteners find applications in securing cables, wires, panels, and other objects within machinery. Producing clips and clamps through CNC machining involves shaping the raw material into the desired form while ensuring firm grip strength when attached.
Inserts are threaded cylindrical pieces used to reinforce holes made in softer materials such as wood or plastic. They ensure durability and allow repeated assembly/disassembly without compromising the longevity or integrity of the material. In CNC machining, inserts are produced by accurately threading external or internal surfaces to enable their secure fitment inside pre-drilled holes.
CNC machining plays an integral role in producing a wide range of fasteners catering to diverse industrial needs. Bolts, screws, nuts, rivets, washers, clips, clamps, and inserts are just a few examples of the essential fasteners manufactured through precision CNC processes. Understanding the types and functions of these fasteners is crucial for efficient assembly and disassembly, creating sturdy and reliable mechanical structures. CNC Milling