What is Multi-Grip Blind Rivet?
A Multi-Grip Blind Rivet, also known as a multi-grip rivet or a bulbing rivet, is a type of blind rivet that offers versatility in terms of grip range. Unlike standard blind rivets that have a fixed grip range, multi-grip rivets can accommodate a range of material thicknesses within a specified range.
The unique feature of a multi-grip blind rivet
is its extended grip range, which allows it to be used in situations where the material thickness may vary or where joints with multiple layers of material need to be fastened together. Instead of requiring a specific rivet length for a particular material thickness, a multi-grip rivet can adapt and accommodate a range of thicknesses within its grip range.
Here's how a multi-grip blind rivet works:
Insertion: The multi-grip rivet is inserted through the aligned holes in the materials to be joined, just like a standard blind rivet.
Setting: The rivet tool is positioned on the exposed end of the rivet shaft, and the tool is actuated to set the rivet. As the tool pulls the mandrel (the central shaft of the rivet) towards the rivet head, the mandrel is pulled into the rivet body, causing the body to expand.
Bulbing: As the mandrel is pulled further, the rivet body deforms, creating a bulbing or flaring effect. The bulbing action expands the rivet body, increasing its diameter and gripping the material layers tightly.
Setting completion: Once the bulbing process is complete, the mandrel breaks off, leaving the expanded rivet body in place. The mandrel remains inside the rivet tool for later disposal.
The advantage of a multi-grip blind rivet is its adaptability to varying material thicknesses. This eliminates the need for different rivet sizes or lengths, simplifying the inventory management process and reducing costs. It also provides flexibility in joining materials of different thicknesses or when working with materials subject to variations in thickness, such as sheet metal.
Multi-grip blind rivets find applications in various industries, including automotive, aerospace, construction, HVAC (heating, ventilation, and air conditioning), and general manufacturing, where they offer a reliable and efficient means of joining materials of different thicknesses.
The Functions of Multi-Grip Blind Rivet
The multi-grip blind rivet serves several functions that make it a versatile and practical fastening option in various applications. Here are some key functions of multi-grip blind rivets:
Joining multiple material layers: Multi-grip blind rivets
are specifically designed to join multiple layers of materials together. They can accommodate varying material thicknesses within a specified grip range, making them suitable for applications where the thickness of the materials being joined may differ.
Compensation for material thickness variations: In situations where there are variations in material thickness, such as irregular or tapered surfaces, the multi-grip blind rivet can adapt to the different thicknesses within its grip range. This flexibility ensures a secure and effective fastening, even when the materials being joined are not of uniform thickness.
Reduction of inventory requirements: Unlike standard blind rivets that require specific lengths to match the material thickness, multi-grip blind rivets offer a broader grip range. This reduces the need for stocking multiple rivet sizes or lengths, simplifying inventory management and potentially reducing costs.
Accommodation of assembly tolerances: In manufacturing processes where there may be slight variations in the dimensions of the components or assembly, multi-grip blind rivets can compensate for these tolerances. The extended grip range allows for a reliable and consistent fastening, even when there are slight deviations in the thickness of the materials.
Enhanced versatility: Multi-grip blind rivets can be used in a wide range of applications across different industries. They are suitable for joining materials such as metals, plastics, composites, and more. This versatility makes them a popular choice in industries such as automotive, construction, electronics, and general manufacturing.
Strong and secure fastening: Multi-grip blind rivets provide a robust and secure joint, ensuring structural integrity and resistance to vibrations. The expanded rivet body created during the bulbing process tightly grips the materials, creating a reliable connection.
Time-efficient installation: The installation process for multi-grip blind rivets is generally quick and efficient. Once the rivets are set using an appropriate rivet tool, the expanded body provides an immediate and secure connection. This can help streamline production or assembly processes, saving time and increasing productivity.
It's important to consider the specific application requirements and material properties to determine if multi-grip blind rivets are the appropriate choice for a particular project.