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ABSTRACT
Destructive testing is needed to control the quality of welds. This is usually done when welding parameters are being set during the industrialization of a new manufacturing line, or by spot checks during manufacturing. The general destructive tests used in welding assembly are presented here. Given their destructive nature, these tests are usually supplemented by non-destructive testing, especially in quality control in production. In this paper, the various tests are described in detail together with the information they can yield. A number of examples illustrate the different techniques.
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Pascal PAILLARD: University Professor - Welding training manager - Head of the "Materials engineering and metallurgy" research team at IMN Polytech Nantes – Institut des matériaux Jean Rouxel UMR 6502 Nantes, France
INTRODUCTION
Most destructive tests on welded joints are subject to standardization, as are tests on base metals. The more specific standards for each test will be dealt with in the paragraphs below relating to these destructive tests. In addition to test descriptions, these standards provide the reader with all the nomenclature needed to designate destructive tests, as well as examples of test reports.
In our first article
There are other very specific destructive tests on welded joints which will not be detailed in this article: fatigue test, toughness test (Crack Tip Opening Displacement)...
In addition, a number of destructive tests specific to welding processes will not be covered in this article. A typical example is resistance welding, for which a whole battery of destructive tests has been developed.
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KEYWORDS
metallographic observations | mechanical tests
This article is included in
Material processing - Assembly
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Welded metallurgical assemblies: specific destructive testing
Bending test
Bibliography
- (1) - BAILEY (N.) - Weldability of ferritic steels. - Abington Publishing (1994).
- (2) - KOU (S.) - Welding metallurgy. - 2 nd edition, Wiley InterScience publishing (2003).
Also...
Standards and norms
- Description and qualification of a welding procedure for metallic materials – Welding procedure qualification test – Part 1: arc and gas welding of steels and arc welding of nickel and nickel alloys - PR NF EN ISO 15614-1 - 11-13
- Destructive testing of welds on metallic materials – Hot crack testing of welded joints – Arc welding processes – Part 1: General information - NF EN ISO 17641-1 - 01-05
- Destructive...
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