FIELD: metallurgy.
SUBSTANCE: there is performed test for bending two flanges of a sample at any to 90° angle. A punch-apparatus with puncheons and matrixes is used as a technical facility for testing; also the punch-apparatus is assembled on punching equipment; as measuring apparatus there are used indicators and protractors of upgraded accuracy determining linear and angular parametres of the sample upon unloading.
EFFECT: upgraded accuracy of determining material punching ability for high precision details.
7 cl, 7 dwg
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