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Prediction of Earing of Hot-Rolled Al Sheets from Pole Figures
Metals ( IF 2.9 ) Pub Date : 2021-01-06 , DOI: 10.3390/met11010099 Adrienn Hlavacs , Mate Szucs , Valeria Mertinger , Marton Benke
Metals ( IF 2.9 ) Pub Date : 2021-01-06 , DOI: 10.3390/met11010099 Adrienn Hlavacs , Mate Szucs , Valeria Mertinger , Marton Benke
The formation of uneven cup heights during deep drawing is called earing. This phenomenon is caused by the planar anisotropy of formability in sheets, which is the result of crystallographic texture. In addition to analytical and finite element methods, a simple and quick method was developed recently to predict the earing profile of Al sheets solely from the data of {200} pole figures. So far, the method was applied on final state sheets cold rolled to 0.3–3 mm thickness and subsequently annealed. Within this manuscript, the earing prediction method is applied on 3003 type Al sheets with the thickness of ~6 mm, being in the hot-rolled state. Texture examinations were performed at different depths, from which earing profiles were calculated. For comparison, earing profiles were calculated from Lankford values that were determined by tensile tests. It is shown that in the case of hot-rolled Al sheets, if the grain structure is uniform across the thickness of the sheet, the earing profile can be appropriately calculated from the full {200} pole figure obtained from surface X-ray Diffraction (XRD) texture measurements.
中文翻译:
从极图预测热轧铝板的产生
在深冲过程中杯高不均匀的形成称为耳形。这种现象是由片状可成形性的平面各向异性引起的,这是晶体学织构的结果。除了分析和有限元方法外,最近还开发了一种简单快速的方法,仅根据{200}极坐标数据即可预测Al板的耳廓。到目前为止,该方法已应用于冷轧至0.3–3 mm厚度并随后退火的最终状态薄板。在此手稿中,在热轧状态下,对3003型厚度为〜6 mm的Al薄板应用了预烧预测方法。在不同深度进行质构检查,从中计算出耳廓。为了进行比较,根据拉力测试确定的Lankford值计算了耳廓。
更新日期:2021-01-06
中文翻译:
从极图预测热轧铝板的产生
在深冲过程中杯高不均匀的形成称为耳形。这种现象是由片状可成形性的平面各向异性引起的,这是晶体学织构的结果。除了分析和有限元方法外,最近还开发了一种简单快速的方法,仅根据{200}极坐标数据即可预测Al板的耳廓。到目前为止,该方法已应用于冷轧至0.3–3 mm厚度并随后退火的最终状态薄板。在此手稿中,在热轧状态下,对3003型厚度为〜6 mm的Al薄板应用了预烧预测方法。在不同深度进行质构检查,从中计算出耳廓。为了进行比较,根据拉力测试确定的Lankford值计算了耳廓。