The upsetting test is a testing method to find out surface
defects. A test specimen with predefined length becomes upset in longitudinal direction
with a ratio from 1:2 , 1:3 or 1:4. It is a indication on a possible surface defect
if the surface bursts in longitudinal direction. With the appearance of the upsetting
sample an experienced tester can already draw conclusions on the defect type. More
exact results, under other also with regard on the defect depth, are found out
in the transverse microsection.
13,00 mm round - solution annealed , pickled