ISO 14324:2003 PDF

Name: ISO 14324:2003 — Resistance spot welding — Destructive tests of welds — Method for the fatigue testing of spot welded joints
SKU: ISO 14324:2003
Price: 25 EUR
Availability: InStock

Resistance spot welding — Destructive tests of welds — Method for the fatigue testing of spot welded joints

Название (английский):

ISO 14324:2003

Resistance spot welding — Destructive tests of welds — Method for the fatigue testing of spot welded joints

Статус документа:: Действующий
Формат:: Электронный (PDF)
Количество страниц:: 10
Дата публикации:: 7 июля 2003 г.
Издание:: ISO IS 14324 edition 1 version 1
ICS:: 25.160.40

Тип поставки:

Full version150 €Read online 24h10 €Read online 72h15 €

Язык документа:

ruen

Срок поставки:2 раб. дн. (перевод)

Цена:150 €

Описание (английский):

ISO 14324:2003 specifies test specimens and procedures for fatigue testing spot welds, at ambient conditions, under repeated tensile loading to produce either shear or cross-tension loading of the spot weld, in steel of sheet thicknesses of 0,5 mm to 6 mm. The test results are not, in general, directly applicable to the fatigue behaviour of a spot-welded component or structure. This procedure can be used for other materials provided proper test conditions (e.g., heating) have been determined.

Abstract

Похожие стандарты

Стандарты, упомянутые в описании

Overview

ISO 14324:2003 - "Resistance spot welding - Destructive tests of welds - Method for the fatigue testing of spot welded joints" defines standardized fatigue test specimens and procedures for evaluating the fatigue performance of resistance spot welded joints. The standard covers ambient-condition, repeated tensile loading that produces either shear or cross-tension stresses in spot welds made in steel sheet thicknesses from 0.5 mm to 6 mm. It notes that laboratory test results are not generally directly applicable to the fatigue behaviour of an assembled component or structure, and that the method can be adapted for other materials if appropriate test conditions (e.g., heating) are determined.

Key topics and technical requirements

Test specimen designs: Defined geometries for shear and cross-tension fatigue specimens, with specified overlaps, widths and free lengths (dimensions depend on sheet thickness).

Test sheets and fabrication: Requirements for edge condition (deburring), flatness, welding jig alignment and spot-weld position tolerances.

Testing machine capabilities:

Secure clamping and alignment of specimen/jig with loading axis
Load or displacement control with recording of mean load and load range (or max/min)
No automatic restart after interruption
Maximum permissible load error: 3% of indicated load or 0.5% of machine capacity

Clamping and jig details: Use of shim plates or offset clamps to avoid bending; cross-tension clamping jig geometry; guidance to avoid damaging the weld during clamping.

Test procedure controls:

Rapid attainment of specified load range without exceeding maximum load
Constant maximum and minimum loads during a test
Control of transverse oscillations for thin-sheet lap specimens (acceptable S-type oscillation only)
Monitoring and recording of interruptions

Termination criteria: Failure defined by development of surface cracks of a specified length (commonly at least one spot-weld diameter) or complete separation; or reaching a specified endurance without failure.

Data and analysis:

Determination of the L–N curve (load range vs. number of cycles) and endurance/fatigue limit
Minimum recommended sample sizes (at least 10 specimens to establish an L–N curve; multiple load levels, at least three load levels spanning 10^2 to 10^7 cycles; replication recommended)

Practical applications and users

ISO 14324:2003 is used by:

Welding engineers and metallurgists assessing fatigue performance of spot welds

Automotive and sheet-metal fabricators validating joint designs and weld parameters

R&D labs performing comparative fatigue testing of materials, electrodes or welding processes

Quality and test laboratories producing L–N curves and endurance limits for specification or design guidance

Note: Test outcomes are primarily comparative and for material/weld-process evaluation; direct extrapolation to in-service component life requires additional analysis and real-world validation.

Related standards

ISO 669 (resistance welding equipment)

ISO 14271 (Vickers hardness testing of spot welds)

ISO 14272 (cross-tension test specimen/procedure)

ISO 14273 (shear test specimen/procedure)

ISO 14329 (failure types and geometric measurements for resistance welds)

Keywords: ISO 14324:2003, resistance spot welding, fatigue testing, L–N curve, shear fatigue, cross-tension fatigue, spot welded joints, endurance limit.

ISO 14324:2003 PDF

Abstract

Похожие стандарты

Overview

Key topics and technical requirements

Practical applications and users

Related standards

Технические детали

SIST ISO 6691:2022

Thermoplastic polymers for plain bearings - Classification and designation

SIST EN ISO 14271:2018

Resistance welding - Vickers hardness testing (low-force and microhardness) of resistance spot, projection, a…

SIST EN ISO 14272:2016

Specimen dimensions and procedure for cross tension testing resistance spot and embossed projection welds (IS…

SIST EN ISO 14273:2016

Specimen dimensions and procedure for shear testing resistance spot, seam and embossed projection welds (ISO…

ISO 14329:2003

Resistance welding — Destructive tests of welds — Failure types and geometric measurements for resistance spo…