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Comparison of Selected Rivet and Riveting Instructions

机译:所选铆钉和铆接说明的比较

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摘要

AbstractSheet metal parts are widely used in airframes. Most sheet metal parts used in aircraft assembly are joined using rivets. A number of riveting parameters directly influence fatigue properties of a structure. These include a rivet length, driven head diameter, tolerance of a rivet hole and a rivet shank diameter, and a protective layer among others. Unfavourable selection or change of these parameters can lead to stress concentrations and early crack nucleation. Crack growth can cause failure of a whole structure.The selection of the riveting process parameters is usually described in a company’s internal instruction (process specifications). Some parameters can be defined in an aircraft's technical specifications. Riveting instructions among other production documentation are part of a company's closely guarded know-how. The author obtained access to two riveting instructions used in Poland and three such documents used in western Europe. The author was permitted to publish the comparison of the parameters from these documents but he is not supposed to reveal any other information. For the reasons stated above, the following cryptonyms were used in the article: Poland-1, Poland-2, West-1, West-2 and West-3.The quality of a joint also depends on rivets parameters that are defined in rivets standards. For this reason, selected rivets defined in the Polish and Russian industry standards as well as western standards are compared in this paper. Tolerances of a rivet and a hole diameter, clearances between a rivet and a hole, rivet lengths anticipated for driven head formation as well as driven head dimensions are taken into account.
机译:摘要钣金件在机身中应用广泛。飞机组装中使用的大多数钣金零件都是使用铆钉连接的。许多铆接参数直接影响结构的疲劳性能。其中包括铆钉长度、从动头直径、铆钉孔公差和铆钉柄直径以及保护层等。这些参数的不利选择或变化会导致应力集中和早期裂纹成核。裂纹扩展会导致整个结构失效。铆接工艺参数的选择通常在公司的内部说明(工艺规范)中描述。一些参数可以在飞机的技术规格中定义。铆接说明以及其他生产文档是公司严密保护的专有技术的一部分。提交人获得了波兰使用的两份铆接说明和西欧使用的三份此类文件。作者被允许发表这些文件中参数的比较,但他不应该透露任何其他信息。由于上述原因,文章中使用了以下隐名:波兰-1、波兰-2、West-1、West-2 和 West-3。接头的质量还取决于铆钉标准中定义的铆钉参数。因此,本文比较了波兰和俄罗斯行业标准以及西方标准中定义的选定铆钉。考虑了铆钉和孔直径的公差、铆钉和孔之间的间隙、驱动头形成的预期铆钉长度以及驱动头尺寸。

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