In an online post, Gesipa says that standard fasteners fall short in meeting the demanding requirements of CFRP.
The Significance of CFRP in Lightweight Applications
Carbon fibre-reinforced plastics have emerged as a game-changer in the automotive manufacturing sector. These materials offer a compelling array of benefits, particularly in weight reduction, which directly contributes to improved fuel efficiency and performance. However, selecting the right fastening solution for CFRP is a critical step in harnessing the full potential of these lightweight wonders.
The Challenge of Fastening CFRP
CFRP materials demand precision and specialised fasteners due to their unique characteristics. Standard fasteners simply cannot meet the high-grade demands of CFRP applications. Gesipa recognised this challenge and embarked on a journey to develop a fastener that would seamlessly integrate with CFRP materials while maintaining the highest standards of quality and performance.
Introducing the SoftGrip Blind Rivet Nut
Gesipa's answer to the CFRP fastening challenge is the SoftGrip blind rivet nut. This innovative product builds upon the success of the PolyGrip multi-range blind rivet nut, delivering a fastening solution tailored for composite materials. What sets the SoftGrip apart is its precisely controlled setting procedure, which minimises bearing stress and contact pressure on the component.
The Outstanding Features of SoftGrip Blind Rivet Nuts -
- Mechanical Strength: The SoftGrip's bulb formation on the component, with a larger-than-average diameter, ensures outstanding mechanical properties. This design minimises the risk of component damage, such as crushing, cracking, and delamination, commonly associated with standard fasteners.
- Precision and Versatility: SoftGrip's controlled bulb formation allows for minimal edge spacing of the blind rivet nut, even when dealing with large hole tolerances. This precision enables a tight fit with components and high strength, all while eliminating the need for additional materials like adhesives.
- Corrosion Resistance: Gesipa employs high-grade stainless steel materials (A2, with A4 available on request) for SoftGrip blind rivet nuts, making the load-bearing thread highly resistant to corrosion. This feature ensures the longevity and reliability of the fastening solution. As a cost-effective alternative to the stainless steel SoftGrip, the SoftGrip steel blind rivet nut is the ideal functional component for plastics and soft materials where there is no need to prevent contact corrosion.
- Process Efficiency: SoftGrip blind rivet nuts enable fast processes and are compatible with process monitoring and control. They are not dependent on surface properties, do not age, and can be accessed from one side, simplifying assembly procedures.
- CFRP Compatibility: One of the standout advantages of SoftGrip blind rivet nuts is their ability to prevent delamination of CFRP materials, ensuring structural integrity and longevity in automotive applications.
- Wide Range of Applications: SoftGrip blind rivet nuts offer a large grip range and are compatible with various soft materials, including plastics. They also accommodate higher hole drilling tolerances, making them versatile for different automotive components.
