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//ISO 18491:2026

ISO 18491:2026

Name: ISO 18491:2026 — Welding and allied processes — Measurement of arc energies
SKU: ISO 18491:2026
Price: 25 EUR
Availability: InStock

Welding and allied processes — Measurement of arc energies

Название (английский):

ISO 18491:2026

Welding and allied processes — Measurement of arc energies

Статус документа:: Действующий
Формат:: Электронный (PDF)
Количество страниц:: 9
Дата публикации:: 23 июня 2026 г.
Издание:: ISO IS 18491 edition 1 version 1
ICS:: 25.160.01

Тип поставки:

Full version25 €Ask AI2 €Read online 24h10 €Read online 72h15 €

Язык документа:

ruen

Срок поставки:1 рабочий день

Цена:25 €

Описание (английский):

This document specifies methods for measuring the parameters needed to calculate arc energies for arc welding processes.

Abstract

Overview

ISO 18491:2026 - Welding and Allied Processes: Measurement of Arc Energies is an international standard developed by ISO that specifies methods for accurately measuring the parameters required to calculate arc energies in arc welding processes. Measurement of welding arc energy, often referred to as heat input, is critical to ensuring the quality, consistency, and safety of welded components and structures across various industries.

Key Topics

Measurement Methods:
ISO 18491:2026 defines three primary methods for determining arc energy:
- Method A: Calculation from welding current, arc voltage, and welding speed.
- Method B: Calculation from total instantaneous energy and length of the weld.
- Method C: Calculation from average instantaneous power and welding speed.
Applicability to Welding Processes:
The standard distinguishes between non-waveform-controlled and waveform-controlled welding processes, recommending different measurement approaches depending on the complexity of the arc waveform.
Precision and Consistency:
- Emphasizes the importance of accurate placement of measuring devices to minimize errors, such as voltage drops in cables.
- Details requirements for calibration and validation of measuring instruments, referencing ISO 17662 and IEC 60974-14.
Measurement Parameters:
- Describes how to measure arc voltage, welding current, welding speed, and run length for accurate energy calculations.
- Specifies minimum sampling frequencies for electronic meters to ensure accurate readings, especially for high-frequency waveform-controlled welding.
Conversion Factors:
Provides a comprehensive table for converting arc energy units to accommodate international and industry-specific preferences (e.g., J/mm, J/cm, J/inch, kJ/mm, kJ/cm, kJ/inch).

Applications

ISO 18491:2026 is vital for organizations and professionals involved in:

Welding Procedure Qualification:
Supports compliance with requirements such as ISO 15614, ensuring that welding energies used in qualification tests are measured using validated and consistent methods.
Manufacturing Quality Control:
Allows inspectors and manufacturers to verify that production welding aligns with approved Welding Procedure Specifications (WPS), contributing to the structural integrity and safety of welded products.
Equipment Calibration and Validation:
Helps welding shops, fabrication facilities, and test laboratories maintain reliable and repeatable welding energy measurements by standardizing equipment calibration processes.
Advanced Welding Technologies:
Addresses challenges in measuring arc energies in modern, programmable power sources and waveform-controlled processes, where conventional meters may produce significant errors.
Regulatory and Client Requirements:
Assists in meeting customer, industry, and regulatory specifications for traceable, standardized arc energy measurements.

Related Standards

ISO 17662: Welding - Calibration, verification, and validation of equipment used for welding, including ancillary activities.
ISO/TR 17671 (all parts): Welding - Recommendations for welding of metallic materials.
ISO 15614: Specification and qualification of welding procedures for metallic materials.
ISO/TR 25901-1, -3, -4: Welding and allied processes - Vocabulary.
IEC 60974-14: Arc welding equipment – Calibration, validation, and consistency testing.
ISO 4063: Welding, brazing, soldering, and cutting - Nomenclature of processes and reference numbers.

Implementing ISO 18491:2026 ensures accurate, repeatable arc energy measurements that are essential for quality control, safety, and global compliance in welding processes.

Технические детали

Технический комитет: ISO/TC 44/SC 10 - Quality management in the field of welding
SKU: ISO 18491:2026

Главная

Каталог

BS EN ISO 17662:2025

Действующий

Welding. Calibration, verification and validation of equipment used for welding, including ancillary activiti…

PDF

50 €

IEC 60974-14:2018

Действующий

Arc welding equipment - Part 14: Calibration, validation and consistency testing

Overview IEC 60974-14:2018 - Arc welding equipment, Part 14 - defines requirements and practical procedures for the calibration, validation and consistency testing (collectively “verification”) of ar…

30 · PDF

35 €

ISO 15614-13:2012

Отменён

Specification and qualification of welding procedures for metallic materials — Welding procedure test — Part…

13 · PDF

25 €

ISO/TR 17671-5:2004

Действующий

Welding — Recommendations for welding of metallic materials — Part 5: Welding of clad steels

Overview ISO/TR 17671-5:2004 - "Welding - Recommendations for welding of metallic materials - Part 5: Welding of clad steels" - provides practical, informative guidance for the welding of clad steels…

8 · PDF

25 €

ISO/TR 25901-1:2016

Действующий

Welding and allied processes — Vocabulary — Part 1: General terms

Overview ISO/TR 25901-1:2016 - Welding and allied processes - Vocabulary - Part 1: General terms defines the core terminology used across welding and allied processes. This Technical Report provides…

41 · PDF

25 €

BS EN ISO 4063:2023

Действующий

Welding, brazing, soldering and cutting. Nomenclature of processes and reference numbers.

PDF

50 €

PDF

ISO 18491:2026

Abstract

Overview

Похожие стандарты

Key Topics

Applications

Related Standards

Технические детали

BS EN ISO 17662:2025

Welding. Calibration, verification and validation of equipment used for welding, including ancillary activiti…

IEC 60974-14:2018

Arc welding equipment - Part 14: Calibration, validation and consistency testing

ISO 15614-13:2012

Specification and qualification of welding procedures for metallic materials — Welding procedure test — Part…

ISO/TR 17671-5:2004

Welding — Recommendations for welding of metallic materials — Part 5: Welding of clad steels

ISO/TR 25901-1:2016

Welding and allied processes — Vocabulary — Part 1: General terms

BS EN ISO 4063:2023

Welding, brazing, soldering and cutting. Nomenclature of processes and reference numbers.