Self Pierce Riveting

Flush self-pierce riveting - pioneering lightweight vehicle body joining solutions

Heron pioneered Flush Self-Pierce Riveting (FSPR) technology and remains a global leader in FSPR solutions, including premium rivets and automated riveting machines. We have supported global manufacturers by integrating the Flush Self-Pierce Riveting process into their designs and production lines, delivering cost-effective rivets and riveting systems. Whether deployed in robotic cells or standalone workstations, our riveting machines ensure reliable metal joints across automotive, aerospace, and other industrial applications.

Self-pierce riveting

New Materials Applications

As the automotive industry pursues decarbonization, electrification, lightweighting, and cost reduction, lightweight and dissimilar materials are increasingly common. Flush Self-Pierce Riveting (FSPR) technology, with its distinctive riveting principle and optimized process parameters, effectively addresses the connection challenges posed by changes in material alloy composition, strength, and physical-chemical properties, ensuring high-strength, corrosion-resistant connections for various material combinations.

Complex Structural Connection

As vehicle body lightweighting progresses, the internal structures have become more intricate, making traditional riveting processes ineffective in reaching optimal riveting locations. Flush Self-Pierce Riveting (FSPR) technology, however, is equipped with flexible and miniaturized riveting machines and customized processes, enabling precise access to the ideal riveting locations and effectively resolving complex connection issues.

Benefits of flush self-pierce riveting

01

High-Speed Automation Production with FSPR

In the mass production of new energy vehicles, Flush Self-Pierce Riveting (FSPR) technology significantly boosts riveting speed and accuracy through the optimization of its automated control system. Flush self-pierce riveting automated riveting production line demonstrates exceptional efficiency during continuous operations across multiple stations and riveting points. By reducing production cycle time, minimizing downtime and lowering reject rate, the FSPR solution substantially enhances overall production efficiency.

02

Cost-Efficiency and Greening Upgrades

Flush Self-Pierce Riveting (FSPR) technology offers advantages in procurement, operation, and maintenance costs. Flush self-pierce riveting machine is characterized by low energy consumption, reduced mold changes, and reasonable rivet costs, effectively cutting down the production expenses of automotive manufacturing enterprises. Moreover, its energy-saving and eco-friendly attributes are in strict compliance with national policies, facilitating sustainable corporate development.

03

Minimal Workpiece Appearance Impact

Traditional SPR technology often leaves raised surfaces on workpieces after riveting, which not only affects the aesthetic appeal but also poses a cracking risk when riveting hot-stamping steel and die-cast aluminum-magnesium alloys. In contrast, FSPR technology creates flush riveting points, maintaining a smooth and flat workpiece surface, reducing stress concentration and minimizing the risk of cracking, thereby enhancing both the appearance and reliability of the riveted product.

04

Reduce Mold Change Frequency

With traditional SPR technology, a new mold is required for each new material to be riveted, which hampers production efficiency and increases production costs. Flush Self-Pierce Riveting (FSPR) technology, adopting a modular and universal mold design concept, allows a single mold to be applied to multiple materials. This significantly decreases the frequency of mold changes, improving production efficiency while reducing expenses associated with mold procurement and maintenance.

05

Quick Mold Change and Adjustment

Flush Self-Pierce Riveting (FSPR) technology presents innovative solutions to mold changeover challenges. Its modular and universal molds not only reduce the frequency of mold changes but are also integrated with quick mold change and adjustment devices. These features dramatically shorten the mold change time, further enhancing production efficiency and reducing operational costs.

Online quality monitoring and control

Flush Self-Pierce Riveting (FSPR) technology incorporates a precise and comprehensive online quality monitoring system.

This system enables real-time assessment and feedback of riveting quality, implementing closed-loop control throughout the entire riveting process. As a result, it ensures consistent and stable product quality.

Application Example

Our products

FSPR Riveting Machine

FSPR Riveting Gun

AKH FAS-NERS

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