A DEVICE FOR CONDUCTING DESTRUCTIVE TEST ON SEAM-WELDED THIN SHEETS ADAPTABLE TO STANDARD UNIVERSAL TESTING MACHINE

摘要

The invention relates to a device for conducting destructive test on seam-welded thin sheets adaptable to standard universal testing machine, the machines having a compression disc (1), and a base (6), the device comprising a forming tool (4) mountable on the compression disc (1), the tool (4) being capable of rotatably and vertically movable along its axis; a apparatus for accommodating a seam welded sheet (5) to be tested, the apparatus having a top plate (2) and a bottom plate (3), the apparatus being disposed on the base (6) of the machine; the forming tool (4) during the testing is caused to rotatably and vertically move to penetrate the test specimen (5) till the seam welded sheet (5) deformed to a hemi spherical shape without developing any crack, the forming tool (4) is configured with a threaded portion corresponding to the threaded area provided on the compact disc (1), in that the bottom plate (3) is provided with a conical hole, and in that the top and bottom plates (2,3) of the apparatus each configured with at least one slot.