1.1 本试验方法涵盖了对用于成形应用的金属片材进行球冲头变形试验的程序。该试验适用于厚度在0.008英寸到0.080英寸（0.2毫米到2.0毫米）之间的试样。 注1: 球冲头变形测试旨在通过标准化之前由测试实验室自行决定的许多测试参数来取代奥尔森杯测试。 注2: 改良的Erichsen试验已在欧洲标准化。球冲头变形试验和埃里克森试验的主要区别在于穿透器和模具的直径。 埃里克森杯的高度以国际单位制表示。 1.2 以英寸磅为单位的数值应视为标准。括号中给出的值是国际单位制的数学转换，仅供参考，不被视为标准。 1.3 本标准并不旨在解决与其使用相关的所有安全问题（如有）。本标准的使用者有责任在使用前制定适当的安全、健康和环境实践，并确定监管限制的适用性。 1.4 本国际标准是根据世界贸易组织技术性贸易壁垒委员会发布的《关于制定国际标准、指南和建议的原则的决定》中确立的国际公认的标准化原则制定的。 ====意义和用途====== 4.1 球冲头变形试验被广泛用于评估和比较金属板材的成形性。双轴拉伸是试验过程中发生的主要变形模式，因此，结果最常用于对主要通过拉伸形成的材料进行评级或比较。然而，通过该试验确定的杯高度与片材在生产条件下的可成形性之间的精确相关性尚未建立。 4.2 来自同一样品的试样的杯高度可能因压紧力、润滑和确定试验终点的方法的不同而不同。 第节中描述的程序 5. , 7.1 和 7.3 将使这些变化最小化。

1.1 This test method covers the procedure for conducting the ball punch deformation test for metallic sheet materials intended for forming applications. The test applies to specimens with thicknesses between 0.008 in. and 0.080 in. (0.2 mm and 2.0 mm). Note 1: The ball punch deformation test is intended to replace the Olsen cup test by standardizing many of the test parameters that previously have been left to the discretion of the testing laboratory. Note 2: The modified Erichsen test has been standardized in Europe. The main differences between the ball punch deformation test and the Erichsen test are the diameters of the penetrator and the dies. Erichsen cup heights are given in SI units. 1.2 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard. 1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee. ====== Significance And Use ====== 4.1 The ball punch deformation test is widely used to evaluate and compare the formability of metallic sheet materials. Biaxial stretching is the predominant mode of deformation occurring during the test and, therefore, the results are most often used to rate or compare materials that are to be formed mainly by stretching. However, precise correlations between the cup height as determined by this test and the formability of a sheet material under production conditions have not been established. 4.2 Cup heights for specimens from the same sample can vary with differences in magnitude of hold-down force, lubrication, and method determining the of end point of the test. The procedures described in Sections 5 , 7.1 , and 7.3 will minimize these variations.