GB/T 15825.7-2008
ActiveSheet metal formability and test methods - Part 7: Earing test
金属薄板成形性能与试验方法 第7部分：凸耳试验
Application Summary AI generated
This standard specifies the earing test method for evaluating the planar anisotropy of sheet metal. It is applied in the automotive, appliance, and metal packaging industries to assess how uniformly a metal sheet will draw during deep drawing processes, helping to predict and control the formation of wavy edges (ears) on drawn cups. The test is critical for quality control in stamping operations where consistent material flow is required.
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