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首页> 外文期刊>International Journal of Engineering Research and Applications >Parametric Study of Multi-Spot Welded Lap Shear Specimen for Shear Strength
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Parametric Study of Multi-Spot Welded Lap Shear Specimen for Shear Strength

机译：多点焊接搭接剪切试样抗剪强度的参数研究

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摘要

The effect of number of spots, spot spacing, squeezing force, welding current, weld time , overlapping length and sheet thicknesson the shear strength of two similar galvanized steel sheets are investigated through experiments using RSM method. Similar sheets of galvanized steel sheets are made by resistance spot welding at different processing conditions and these joint populations were tested under lap-shear loading conditions. Specially fabricated fixture is used to load the lap shear specimen in the universal testing machine Regression analysis is done to obtain relationship between shear strength and selected parameters. The experimental results indicate that the failure loads of spot welds in lap-shear specimens increase when number of spot, squeezing force, welding current and sheet thickness increase for the given ranges.
机译：通过RSM试验，研究了点数，点间距，挤压力，焊接电流，焊接时间，重叠长度和板厚对两种相似镀锌钢板剪切强度的影响。在不同的加工条件下通过电阻点焊制造类似的镀锌钢板，并在搭接剪切载荷条件下测试了这些接头的数量。使用特殊制造的夹具将万能剪切机中的搭接剪切试样加载到万能试验机中进行回归分析，以获得剪切强度与所选参数之间的关系。实验结果表明，在给定范围内，当点数，挤压力，焊接电流和薄板厚度增加时，搭接剪切试样中点焊的破坏载荷增加。

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