EN 2145:1994

Overview

EN 2145:1994 is a European standard developed by CEN that specifies the requirements for solid rivets with a universal head made from aluminium alloy 2117. These rivets are designed as an inch-based series, primarily used in aerospace applications. The rivets are treated by anodizing or chromating processes to enhance corrosion resistance and durability, suitable for operational environments with a maximum temperature of 120°C. This standard ensures the quality, uniformity, and performance consistency of aluminium rivets critical for aerospace structural integrity.

Key Topics

• Material Specification: The rivets are manufactured from aluminium alloy 2117, known for its strength, lightweight characteristics, and corrosion resistance after proper surface treatment.
• Head Type: Universal head design allows compatibility with standard aerospace riveting tools, providing ease of installation and reliable fastening.
• Surface Treatment: Anodized or chromated finishes are required to protect rivets against corrosion, extending the lifecycle of aerospace assemblies.
• Dimensional Series: Inch-based sizing system to align with prevalent aerospace component dimensions, ensuring interchangeability and standardization.
• Temperature Limit: Designed for use in environments up to 120°C, making these rivets suitable for various aerospace operational conditions without compromising mechanical properties.
• Quality Control: Conformance to stringent aerospace standards for material composition, head shape, and surface finish ensures safety and reliability in critical structural applications.

Applications

• Aerospace Manufacturing: The primary application of EN 2145 compliant rivets is in aircraft assembly, including fuselage panels, wing structures, and control surfaces where lightweight yet robust fasteners are essential.
• Maintenance and Repair: Used in servicing aerospace vehicles where consistent compatibility and standardization are crucial for reliable repairs.
• Other High-Performance Vehicles: Applicable in industries requiring high-strength, corrosion-resistant fastening solutions at elevated temperatures such as aerospace satellites and advanced aeronautical equipment.
• Prototype and Testing: Engineering and design teams use these rivets in prototype development and rigorous testing to simulate operational stresses in aerospace environments.

Related Standards

• EN 955 - Pertains to cold-formed rivets for aerospace applications, offering complementary guidance on rivet manufacturing methods.
• EN 15085 - Focuses on welding processes relevant to aerospace structures, often used alongside riveting for assembly.
• ISO 13918 - International standard for metal rivets, providing broader context and additional types of rivets beyond aluminium universal head models.
• MIL-DTL-81727 - US military specification on aluminium alloy rivets, useful for cross-referencing aerospace fastener requirements.

By adhering to EN 2145:1994, manufacturers and engineers ensure the use of high-quality, standardized solid rivets in aluminium alloy 2117, contributing to the safety, durability, and performance of aerospace structures. This standard supports the aerospace industry's stringent requirements for reliable fastening solutions under demanding conditions.