BS EN ISO 25239-4:2020: Friction Stir Welding - Aluminium Specification and Qualification of Welding Procedures

Welcome to the comprehensive guide on the BS EN ISO 25239-4:2020 standard, a pivotal document for professionals in the field of welding, specifically focusing on friction stir welding (FSW) of aluminium. This standard is an essential resource for ensuring the highest quality and consistency in welding procedures, providing detailed specifications and qualifications necessary for the industry.

Overview of the Standard

The BS EN ISO 25239-4:2020 is a part of a series of standards dedicated to friction stir welding, a solid-state joining process that is particularly effective for aluminium alloys. Released on July 27, 2020, this document is a crucial tool for engineers, quality assurance professionals, and manufacturers who are involved in the welding of aluminium components.

Key Features

• Standard Number: BS EN ISO 25239-4:2020
• Pages: 30
• ISBN: 978 0 539 04090 6
• Status: Standard

Why Choose BS EN ISO 25239-4:2020?

This standard is indispensable for several reasons:

• Comprehensive Guidelines: It provides detailed specifications and qualifications for welding procedures, ensuring that all processes meet the highest standards of quality and safety.
• Industry Relevance: As a widely recognized standard, it is used globally, making it a critical document for companies looking to maintain competitiveness in the international market.
• Focus on Aluminium: Given the increasing use of aluminium in various industries due to its lightweight and durable properties, this standard is particularly relevant for those working with this material.

Applications of Friction Stir Welding

Friction stir welding is a revolutionary technique that has transformed the way aluminium is joined. It is used in a variety of applications, including:

• Aerospace: For constructing lightweight yet strong components.
• Automotive: In the manufacturing of vehicle bodies and frames.
• Shipbuilding: For creating durable and corrosion-resistant joints.
• Railway: In the production of high-speed trains and other rail components.

Understanding the Specifications

The BS EN ISO 25239-4:2020 standard outlines the necessary specifications for friction stir welding procedures. It covers various aspects such as:

• Welding Parameters: Detailed guidelines on the parameters that affect the quality of the weld, including tool rotation speed, travel speed, and axial force.
• Material Considerations: Information on the types of aluminium alloys that can be effectively welded using FSW.
• Quality Assurance: Procedures for testing and verifying the integrity of the welds to ensure they meet the required standards.

Qualification of Welding Procedures

Qualification is a critical component of the BS EN ISO 25239-4:2020 standard. It ensures that welding procedures are capable of producing welds that meet the specified requirements. The standard provides a framework for:

• Procedure Qualification Records (PQR): Documentation that verifies the welding procedure has been tested and meets the necessary criteria.
• Welder Qualification: Ensuring that welders have the necessary skills and knowledge to perform FSW to the required standards.
• Continuous Improvement: Encouraging ongoing assessment and refinement of welding procedures to maintain high standards of quality.

Benefits of Implementing the Standard

Adopting the BS EN ISO 25239-4:2020 standard offers numerous benefits, including:

• Enhanced Quality: By adhering to the specifications and qualifications outlined in the standard, companies can ensure the production of high-quality welds.
• Increased Efficiency: Standardized procedures lead to more efficient production processes, reducing waste and improving turnaround times.
• Competitive Advantage: Companies that implement this standard demonstrate a commitment to quality and safety, enhancing their reputation in the market.

Conclusion

The BS EN ISO 25239-4:2020 standard is an invaluable resource for anyone involved in the friction stir welding of aluminium. By providing comprehensive guidelines and qualifications, it ensures that welding procedures are performed to the highest standards, resulting in superior quality and performance. Whether you are in aerospace, automotive, shipbuilding, or any other industry that utilizes aluminium, this standard is essential for maintaining excellence in your welding processes.

BS EN ISO 25239-4:2020

• 25.160.10 Welding processes

This document specifies the requirements for the specification and qualification of welding procedures for the friction stir welding (FSW) of aluminium.

In this document, the term “aluminium” refers to aluminium and its alloys.

This document does not apply to friction stir spot welding which is covered by the ISO 18785 series.