Is this overlay for or wear resistance (hardfacing) ?
| | Publication Date | Status | Key Changes | |---|---|---|---| | EN ISO 15614-7:2019 | 2019-12 | Current (active) | Most recent revision; supersedes 2016 edition | | EN ISO 15614-7:2016 | 2016-10 | Superseded (withdrawn) | Second edition; introduced updated qualification variables | | EN ISO 15614-7:2007 | 2007-07 | Superseded (obsolete) | First edition; no longer valid for new qualifications |
EN ISO 15614-7 is a critical standard that ensures the competence of welding personnel who perform resistance welding operations. By understanding the requirements of this standard, organizations can improve welding quality, increase safety, and enhance productivity. If you are involved in resistance welding operations, it is essential to obtain a copy of EN ISO 15614-7 PDF and ensure compliance with its requirements.
To fully appreciate Part 7, it is helpful to understand it within the broader "ISO 15614" series. This series is the industry's primary resource for qualifying welding procedures for metallic materials, with each part focusing on a specific welding process or material type:
Defines how far a single qualified WPQR can be applied to production welding before requiring a re-test. Essential Variables and Range of Qualification
Yes and no. is the international standard. EN ISO 15614-7 is the identical European adoption of that international standard. The technical content is exactly the same; the EN version simply adds a European foreword and, in some cases, an informative Annex ZA linking the standard to EU directives. For practical purposes, they are interchangeable.
Even with a PDF in hand, practitioners often make errors:
The scope of the standard includes three primary applications:
The process begins with creating a Preliminary Welding Procedure Specification (pWPS). This document details all proposed welding parameters that will be tested.
The standard limits qualification to a specific base metal thickness (e.g., a test on 20mm plate qualifies you for 15mm to 40mm, not unlimited).
One of the most common mistakes is assuming a small change is acceptable. EN ISO 15614-7 defines strict qualification ranges.