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Earing test

The earing test is a test method for the determination of forming behavior of sheet metals.

In this test, round sheet metal plates are punched out and drawn into cups with a draw matrix. After the test, the ear formation on the edges of the cups are evaluated.

Overview of the Earing Tests

Earing tests are described in various standards. Here you will find an overview of the current standards and tests.

Earing test on metal/aluminum

The earing test on metallic materials (ISO 11531) and aluminum (EN 1669) is used for determining ear formation.
to Earing test on metal/aluminum

Earing test to Fukui

For the Fukui conical cup test, conical cups are stretched and pulled
to Earing test to Fukui

Square cup test

For the square cup test, cups are drawn with square bases.
to Square cup test

Limiting Drawing Ratio Test (LDR)

For the limiting drawing ratio (LDR) test, or Swift deep drawing cup test, the maximum ratio of circular blank to die diameter is evaluated.
to Limiting Drawing Ratio Test (LDR)

Limiting dome height (LDH) test

For a limiting dome height (LDH) test a hemispherical die is used to strain the clamped specimen until break.
to Limiting dome height (LDH) test

Deep drawing tear-off test to Engelhardt

For the deep drawing and tear-off test to Engelhardt the necessary drawing force and force required to cause bottom cracks during the earing test are measured.
to Deep drawing tear-off test to Engelhardt

Related Products for Performing the Earing Test