ISO 14272:2016

Name: ISO 14272:2016 — Resistance welding — Destructive testing of welds — Specimen dimensions and procedure for cross tension testing of resistance spot and embossed projection welds
SKU: ISO 14272:2016
Price: 25 EUR
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Resistance welding — Destructive testing of welds — Specimen dimensions and procedure for cross tension testing of resistance spot and embossed projection welds

Название (английский):

ISO 14272:2016

Resistance welding — Destructive testing of welds — Specimen dimensions and procedure for cross tension testing of resistance spot and embossed projection welds

Статус документа:: Действующий
Формат:: Электронный (PDF)
Количество страниц:: 10
Дата публикации:: 3 марта 2016 г.
Издание:: ISO IS 14272 edition 2 version 1
ICS:: 25.160.40

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Описание (английский):

ISO 14272:2016 specifies specimen dimensions and a testing procedure for the cross tension testing of spot and projection welds in overlapping sheets in any metallic material of thickness 0,5 mm to 3 mm, where the welds have a maximum diameter of 7√t (where t is the sheet thickness in mm). The object of cross tension testing is to determine the tensile force that the test specimen can sustain.

Abstract

Похожие стандарты

Стандарты, упомянутые в описании

Overview

ISO 14272:2016 - "Resistance welding - Destructive testing of welds - Specimen dimensions and procedure for cross tension testing of resistance spot and embossed projection welds" specifies specimen geometry and a standardized test method to determine the tensile force that spot and projection welds can sustain. The standard applies to overlapping metallic sheets with thickness from 0.5 mm to 3 mm, and to welds whose maximum diameter does not exceed 7√t (t = sheet thickness in mm). The primary measured outcome is the cross tension strength (CTS) - the maximum force obtained in the test.

Key technical topics and requirements

Specimen dimensions and configuration: Standardized test specimen layout and welding jig arrangements are provided to ensure repeatable specimens for cross tension testing.

Scope limits: Applicable to spot and embossed projection welds in overlapping sheets of any metallic material with thickness 0.5–3 mm and weld diameter ≤ 7√t.

Minimum sample size: At least eleven specimens shall be tested to produce valid results.

Testing equipment and procedure:

Use a tensile testing machine that meets ISO 7500-1 requirements (verification/calibration of force-measuring system).
Specimens are clamped (or hydraulically clamped) and pulled in cross tension until failure.
Tests are performed at room temperature.
Measure and record cross tension force and determine weld diameter from the fractured specimen.
Generate a load–elongation diagram for deformation information.

Results and reporting: Record individual values, mean and standard deviation for CTS and weld diameter, failure mode, welding process/conditions, material, specimen dimensions, and any special remarks (report items a–i as specified in the standard).

Failure classification: Failure modes are reported in accordance with the vocabulary and failure types in ISO 17677-1 and related guidance (e.g., ISO 14329).

Practical applications and users

ISO 14272:2016 is used to:

Validate and compare the tensile performance of resistance spot and projection welds.

Support welding process development, parameter optimization, and material selection.

Perform quality control and supplier qualification testing in manufacturing.

Investigate failure modes and correlate weld geometry to strength. Typical users include:

Welding engineers and metallurgists

Quality assurance and testing laboratories

OEMs and suppliers in automotive, aerospace, appliance, and general metal fabrication industries

Research and development teams working on resistance welding processes

Related standards

ISO 17677-1 - Vocabulary and failure mode definitions for spot, projection and seam welding (referenced for terminology and failure classification).

ISO 7500-1 - Verification and calibration of force-measuring systems for tensile testing machines (equipment requirements).

ISO 14329 - Destructive tests - failure types and geometric measurements for resistance spot, seam and projection welds (related failure characterization).

Keywords: ISO 14272:2016, resistance welding, cross tension testing, spot welds, projection welds, specimen dimensions, destructive testing, cross tension strength (CTS), weld testing, weld quality.

ISO 14272:2016

Abstract

Похожие стандарты

Overview

Key technical topics and requirements

Practical applications and users

Related standards

Технические детали

ISO 7500-1:2018

Metallic materials — Calibration and verification of static uniaxial testing machines — Part 1: Tension/compr…

BS EN ISO 17677-1:2021

Resistance welding. Vocabulary. Spot, projection and seam welding.

BS EN ISO 14329:2003

Resistance welding. Destructive tests of welds. Failure types and geometric measurements for resistance spot,…