High Quality Rivets for Precision CNC Machining(cut aluminum Beverly)

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Rivets are a crucial component in many manufacturing and engineering applications. As products and parts become more complex, the quality and precision of rivets is more important than ever. For companies using computer numerical control (CNC) machining, having consistent, reliable rivets is a must.
What are Rivets?
A rivet is a mechanical fastener that connects two or more objects together. Rivets consist of a smooth cylindrical shaft with a head on one end. The rivet is inserted into pre-drilled holes in the materials being joined, and the tail end is upset, or bucked, to form a second head. This creates permanent joints that cannot easily come apart.
Rivets come in a wide range of sizes, shapes, and materials to suit different applications. Common types include blind rivets, drive rivets, and structural rivets made of aluminum, steel, silicone bronze, monel, and more. The choice depends on strength requirements, corrosion resistance, accessibility, and cost.
Using Quality Rivets in CNC machining
CNC machining utilizes computer controls to automate milling, routing, grinding, and drilling processes. This technology allows for fast, accurate fabrication of components. During CNC operations, rivets are often used to assemble the finished parts.
High quality rivets are essential for CNC work. Defective or subpar rivets can damage equipment and ruin products. Key factors to consider for rivets in CNC applications:
- Consistent Size and Shape: Rivets must match their hole sizes exactly. Even minor deviations can prevent proper insertion or cause loose connections. CNC requires total uniformity.
- Optimized Material Strength: Rivets should be made of a robust material able to withstand shearing, tension, and vibration forces. Aircraft-grade aluminum is commonly used. The rivet composition must complement the joined materials.
- Precision Head Shape: For rivets to form tight closures, the pre-formed head shape is critical. Any irregularities or defects will result in a poor bond. The head shape should distribute stress evenly.
- Axial Alignment: The rivet shaft must be straight and centered to fit correctly in holes. Off-axis rivets can damage holes and alter alignment. Proper axial alignment also allows for smooth insertion.
- Surface Finish: A smooth surface finish ensures consistent adhesion and minimizes friction during insertion. Rough or scratched surfaces often indicate poor quality control in manufacturing.
- Diameter Consistency: To function properly, the shaft diameter should have little variation. Inconsistent diameters will prevent rivets from fitting in holes.
Choosing A Reliable Rivet Supplier
With so many critical factors, selecting a competent rivet supplier is key for CNC shops. Top suppliers should provide certification data to confirm their rivets meet industry standards like AN, NAS, MS, AS, and others. The manufacturing processes and quality controls used by the supplier should follow ISO 9001 or similar guidelines.
Well-established companies often offer the most depth of inventory, technical support, and custom options. Look for suppliers that can provide samples for prototype testing. Streamlined purchasing options like online ordering can also minimize procurement hassles.
For specialty aircraft and aerospace applications, seek out suppliers approved by Boeing, Airbus, or other leading aviation companies. Military approved sources are another mark of quality for mission-critical components.
Inspection and Testing
To verify rivet quality, companies should perform incoming inspections checking head shape, diameter, surface finish, hardness, composition, and other attributes. Conducting shear and tensile testing periodically will also help detect any flaws or inconsistencies over time.
For critical assemblies, confirming hole size, grip length, and rivet protrusion after installation is advised. This ensures optimal rivet engagement. Advanced inspection using 3D scanning and other non-contact measuring can identify any issues.
Proper Storage and Handling
Quality rivets can degrade if not stored and handled correctly:
- Keep rivets in original packaging until use to prevent damage or dirt accumulation.
- Store indoors in a clean, dry environment away fromchemicals, moisture, and temperature extremes.
- Avoidrough handling that can bend or warp rivets. Dropping containerscan alter rivet geometry.
- Discard any rivets that show corrosion or oxidation before installation.
- Separate and labeldifferent rivet types and sizes to prevent mix-ups during assembly.
- Rotate stock and use older inventory first to maintain freshness.
For CNC machined components where precision is vital, having excellent rivets makes all the difference. Partnering with a trusted, qualified rivet supplier and implementing careful quality controls ensures optimal results. Investing in high quality rivets equals higher quality finished products. CNC Milling