Page 312 - CITS - Welder - Trade Practical

WELDER - CITS

EXERCISE 84 : Plan Bend Testing of Weldments

Objectives
At the end of this exercise, you will be able to:
• fix the job in vice
• apply the force on job to bend
• use guided machine
• rectify the defects.

Job Sequence

- The welded joints are fixed on a vice and bent by applying forces by hammer/bending bar to determine the
defect in the weld done by a trainee in a workshop.

- The workshop tests are usually used to break open the weld in a workshop using a vice and hammer for visual
inspection
- Guided bend test: A guided bend test is one in which the specimen as in is bent to 180° through a bend testing

- There are two types of specimens prepared for this-one for face bend and the other for root bend.
- This test measures the ductility of the weld faults quite accurately and it is very fast.
- A sample specimen can be tested on destruction to determine (a) the physical condition of the weld and thus
check on the weld procedure and (b) the welder’s capability.

Wear protective clothing.

295