Method for producing a y-groove weld cracking test plate

摘要

PROBLEM TO BE SOLVED: To provide a y-type welding crack testing plate, and a manufacturing method thereof, for reducing welding manhours, when executing restriction welding, by accurately forming a gap of a test welding part of the y-type welding crack testing plate, without executing the restriction welding.;SOLUTION: A y-type welding crack testing plate 1 comprises: a testing plate body 2 composed of a steel material; a V-shaped groove 6 formed so as to extend in a straight line shape in an area except for an edge part of a surface of the body and being a V shape of having an inclined face of crossing at an angle corresponding to a groove angle of a y-shaped groove of a testing object in a cross section in a width direction vertical to a direction of extending in the straight line shape; and a plate-like slit 11 opening on a reverse surface of the body by extending up to the reverse surface of the body from a whole area of a bottom part of the V-shaped groove 6, inclined in the same surface as one inclined face of the V-shaped groove 6 in its one surface and corresponding to a route gap of the y-shaped groove of the testing object in an interval of opposed two surfaces.;COPYRIGHT: (C)2014,JPO&INPIT