用增材法对20CrNiMo2-2钢构件进行扭转试验的构想

K. Grzelak, J. Kluczyński, Bartłomiej Sarzyński
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引用次数: 0

摘要

近年来,增材制造(AM)技术已成为发展最快的各种零部件生产方法之一。就建筑材料而言,它们不仅允许使用聚合物,还允许使用复合材料或金属。使用上述技术制造的产品用于各个行业领域,例如医疗、建筑、娱乐,尤其是机械和设备的零部件制造。为了更全面地识别和确定产品的强度特性,用于机械应用的3D打印产品需要进行各种测试,例如静态拉伸测试。本文研究了用选择性激光熔炼(SLM)对高等级20CrNiMo2-2钢圆柱试样进行静态扭转试验的方法。这种方法允许观察材料行为并确定强度特性的特定值,例如材料中的最大切向应力和体积弹性模量(剪切模量)。这些参数的确定允许将其与使用其他方法制造的部件(例如冷拉实心棒样品)的测试结果进行比较。
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A Concept to Carry Out a Torsion Test on Components Made of 20CrNiMo2-2 Steel Using Additive Techniques
In recent years, additive manufacturing (AM) technologies, have been one of the fastest developing methods of production of various components. As far as building material is concerned, they allow for using not only polymers, but also composites or metals. Products fabricated using said technologies are used in various areas of industries, for instance in medicine, architecture, entertainment, and in particular in the construction of parts and components of machinery and equipment. To recognize and determine the products’ strength properties in a more comprehensive manner, 3D printing products used in mechanical applications are subject to various tests, e.g. static tensile test. This paper contains research about static torsion test on cylindrical samples made of high grade 20CrNiMo2-2 steel using the selective laser melting (SLM). Such an approach allowed to observe the material behaviour and to determine specific values of strength properties, such as the maximum tangential stresses in the material and bulk modulus of elasticity (shear modulus). The determination of such parameters allowed to compare them with the results of the tests carried out on components manufactured using other methods (e.g. a cold drawn solid bar sample).
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自引率
0.00%
发文量
23
审稿时长
53 weeks
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