What is Cupping Test?
Cupping test is performed on the metal sheets and widely performed in metal manufacturing industries and paint industries to determine the ability of the metal sheets (having thickness 0.2 mm to 2mm) to undergo continuous deformation when it is provided to any type of stretching force.
How is Cupping Test Performed?
Cupping test is conducted on the testing machine known as “Cupping Machine”. The testing instrument work on the principle that a cup is formed into a sheet when it is pressed by a spherical punch against the clamped sample until visible cracks are developed on the sheet. After the cracks are developed on the sheet, the application of force is stopped, and the depth of the cup is measured by the test results.
Cupping Machine by Presto
Presto Stantest offers high-quality of cupping machines to perform the ductility test on the painted metal sheets to evaluate the ability of the metals and strips when they are subjected to continuous deformation to determine any kind of stretch forming.
How to perform the test with Presto’s Cupping Machine?
The test comprises of forming an indentation by pressing a punch with a spherical end against a sample which is clamped between a die and a sample holder until any type of deformation or cracks is seen on the samples.
After the test, the depth of the cup can be measured. The cupping machine is used to test the draw ability of the metal sheet components. The testing machine is manufactured as per the standards that are introduced by various standardization authorities such as ISO 8490:1986 and IS: 10175 (Part I): 1993. The machine comprises of a standard ball which is made to penetrate through a clamped sample sheet up to the thickness of 2 mm.
Standard Operating Procedure
Presto’s Cupping machine is the best device to perform ductility test on metal plates. For more information, visit: www.prestogroup.com/
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