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The difference between semi-tubular rivets and tubular rivets is the depth of the hole in the shank. The hole depth on a semi-tubular rivet is less than 112% of the shank diameter, while the hole depth on a tubular rivet is equal to or greater than 112%. The distinction shapes its effectiveness, allowing each style to excel in particular uses.
Semi-tubular rivets are commonly used in such applications such as automotive, electronics, and industrial manufacturing, because of their ease of use and high joint strength. Compared to their solid rivet counterparts, they require 75% less force to install, which saves on labor costs and enhances production output. They are also available in 5 different types: Copper, Brass Aluminum, Stainless Steel (to prevent corrosion) and Steel (used for conductivity). This allows for resistant joints even with minimal effort which enables a high level of joint integrity for medium-duty applications.
Hollow tubular rivets need a deeper hole, so they are great for softer materials such as leather, plastic, and fabric. However, they are widely found in various applications ranging from luggage, footwear to furniture, where a tight clinch is required for strength and durability. The deeper hole means a more secure hold without tearing or damaging delicate materials.
When choosing between semi-tubular and tubular rivets, shear strength and pull-apart resistance come into play. Shear strength keeps the rivet from applying sideways pressure that might stretch the hole and pull apart resistance prevents an axial breakdown by holding both the surface area of the rivet head as well as the clinch allowance to the proper size. Improper rivet selection can lead to structural compromises and affect the longevity of the assembled parts.
The semi-tubular rivet is well-suited for fast, reliable assembly with a lower installation effort, while the tubular rivet is recommended for softer materials needing a more reliable clinch. Testing rivets in realistic conditions allows you to fine-tune size, placement, and durability. By understanding the distinctions, manufacturers can choose the most suitable rivet for their applications to ensure long-term performance with cost-effectiveness in industrial, manufacturing, and consumer product applications.
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