Page 314 - CITS - Welder - Trade Practical

WELDER - CITS

EXERCISE 85 : Perform tensile testing

Objectives

At the end of this exercise, you will be able to:
• explain the necessity for destructive tests
• explain the different methods of destructive test of weldments
• explain the advantages and limitations of workshop and laboratory tests
• identify the specimen for destructive tests.

Job Sequence

- A tensile test is conducted to know the tensile strength and ductility. (i.e.elongation) of a weld. Two types of test
specimens are prepared for the tensile test.
- The tensile test gives the values of the tensile strength of the weld and the percentage of elongation of the
weld.
- They are – transverse tensile test specimen.
- This reveals the suitability of a joint welded with certain electrodes and base metals for a particular service
condition.

Wear protective clothing.
- The basic idea of a tensile is to place a sample of a material between two fixeres called “grips” which clamp
the material has known dimensions, like length and cross sectional area we then begin to apply weight to the
material gripped at one and white the other end is fixed.

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