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BEND TESTS


BEND TESTS

Object: 

To determine the soundness of weld metal, heat affected zone and weld zone.These tests may also be used to give some measure of the ductility of the weld zone. It is not usual to use transverse and longitudinal bend tests for the same application.

Method: 

All specimens to be removed and prepared without causing significant distortion or heating. The cap and root are ground flush. The specimen is bent by the movement of a former of prescribed diameter, the relevant side of the specimen to be placed in tension. Angle of bend and diameter of former should be as specified in the appropriate standard.

Reporting Results:
  • Thickness of specimen
  • Direction of bend (root or face)
  • Angle of bend
  • Diameter of former
  • Appearance of joint after bending e.g. type and location of flaws



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