Understanding the Various Types of Fasteners Used in CNC Machining--cncmass.com(bending of metal Yehudi)
- source:BREDA CNC Machining
Fasteners play a vital role in many industries, including CNC machining, as they help securely hold components together. The choice of fasteners greatly impacts the structural strength and integrity of the final product. In this article, we will explore the different types of fasteners used in CNC machining and their respective applications.
Screws are the most common type of fasteners found in CNC machined components. Varying in sizes and shapes, screws are designed to be threaded into pre-drilled or tapped holes. They offer exceptional holding power and can be easily removed and replaced when necessary. Screws find extensive use in automotive, aerospace, electronics, and machinery industries.
Similar to screws, bolts also require pre-drilled or tapped holes but have no built-in thread. Instead, they feature a nut for proper fastening. Bolts are commonly used in heavy load-bearing applications where higher tension is required. Their robust construction makes them ideal for securing joints that face significant stress and vibration.
Nuts are often paired with bolts and screws to provide a secure joint. Available in various styles such as hexagonal, square, or winged, nuts come in handy for both manual tightening and using torque wrenches. They are used across multiple industries, especially in mechanical assemblies, electrical enclosures, and furniture manufacturing.
Washers serve as an essential component in CNC machining, placed between the fastener head/nut and the surface being secured. They distribute pressure more evenly, prevent damage to the material, reduce friction, and increase stability. Flat washers, spring washers, and locking washers are some common variations suitable for different applications.
Unlike screws and bolts, rivets are permanent fasteners widely used in sheet metal fabrication and structural applications. Riveting involves inserting a specially designed rivet into pre-drilled holes, securing it permanently by deforming the end portion with applied force. This creates a strong bond, making rivets ideal for joining metal components where welding or screws may not be suitable.
Clips, also called clamps or retaining clips, are used to hold objects together firmly. They come in various styles, including spring clips, E-clips, circlips, and retaining rings. Clips find applications in CNC machining for holding cables, wires, hoses, and other objects securely in place, preventing movement or detachment due to vibrations or external forces.
Threaded inserts are commonly used when fastening into softer materials, such as plastics, composite materials, or wood. These inserts provide a stable female thread to secure bolts or screws without causing damage or stripping the material itself. They increase the strength and longevity of the connection while facilitating easy disassembly and re-assembly if necessary.
Understanding the different types of fasteners used in CNC machining is crucial for designing functional and reliable products. Each type serves a specific purpose, ensuring proper joint integrity, dimensional stability, and load-bearing capabilities. Selecting the right fastener based on the application requirements guarantees optimal performance and enhances overall product quality.
Remember, regardless of the chosen fastener type, precision and attention to detail are critical during the CNC machining process to ensure accurate hole placement, appropriate torque settings, and secure long-lasting connections. CNC Milling CNC Machining