Process and device for producing a peel or tear test specimen on a welded compound sheet
AssigneeElpatronic AG
InventorsGeorg Benedikt, Werner Urech
Life of this patent
Estimating the term…
Abstract
A compound sheet with a welded seam is arranged on a table (2) of the device (1). By lowering a cutting and bending punch (4), a cutout is cut from the compound sheet and bent downwards. A pulling device is arranged inside the device (1) underneath the table (2) to seize the downwardly bent cutout and tear it off the compound sheet. The quality of the weld can be evaluated by visual inspection of the appearance of the rupture point, in a known manner. In this way, tear test specimens of consistent quality and informativeness can be prepared very quickly and easily.
Claims14
Device for carrying out the process of producing a peel or tear test specimen on a welded compound sheet or part thereof characterized by a table to support the compound sheet or part thereof, an actuating device, a cutting and bending punch arranged above the table and connected to the actuating device to produce a cutout in the compound sheet or part thereof and pulling means arranged underneath the table for gripping and exerting a defined tension on the cutout.
Device for carrying out the process of producing a peel or tear test specimen on a welded compound sheet or part thereof characterized by a table to support the compound sheet or part thereof, an actuating device arranged above the table, and a cutting, bending and pressing punch which is propelled by the actuating device onto the compound sheet in a cutting and bending operation to form a cutout in the shape of a seat, the actuating device having a displacement sufficient to cause the punch to additionally exert a pulling and tearing force on the cutout which results in destruction of the specimen.
Process for producing a peel or tear test specimen on a welded compound sheet or part thereof having a welded seam, characterized by forming a cutout in the compound sheet by means of a cutting and bending element which defines the dimensions of the cutout, and coupling the formed cutout to a tensioning device and thereby exerting on the cutout a defined tension acting through the cutout on the welded seam.
Dependencies are inferred from the claim text.