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首页> 外文期刊>Welding in the World: Journal of the International Institute of Welding: Journal of the International Institute of Welding >Robustness of the HFMI techniques and the effect of weld quality on the fatigue life improvement of welded joints
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Robustness of the HFMI techniques and the effect of weld quality on the fatigue life improvement of welded joints

机译：HFMI技术的鲁棒性和焊接质量对焊接接头疲劳寿命改进的影响

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摘要

Robustness of HFMI treatment in different weld qualities according to ISO 5817 was studied, and fatigue testing of the treated samples was carried out in order to investigate the effect of the weld quality prior treatment. The results show that HFMI-treated welds with weld quality level D shows fatigue life improvements that fall within the IIW recommendations for HFMI. No significant influence from the HFMI operator or HFMI equipment on the fatigue life was found. However, the scatter in fatigue testing results varied with HFMI operator and indicated that different HFMI operators could produce consistent treatment results. A considerable effect on fatigue life from HFMI tool radius was found, where the 2-mm tool radius showed considerably greater fatigue life compared with the 1.5-mm tool radius. According to IIW (Marquis and Barsoum 2016), for steel grade S-Y = 700 MPa, the fatigue strength recommendation is FAT 160 (m = 5) for transverse stiffener-welded joints with as-welded quality B according to ISO 5817 (ISO/TC 44/SC 10 2011), prior to treatment. It can be observed in the current study that fatigue-tested HFMI-treated welded joints, welded with weld quality D, are in good agreement with the IIW recommendations.
机译：研究了根据ISO 5817的不同焊接品质的HFMI处理的鲁棒性，并进行了处理的样品的疲劳试验，以研究焊接质量先前治疗的影响。结果表明，具有焊接质量水平D的HFMI处理的焊缝显示出疲劳寿命改进，即在HFMI的IIW建议内下降。发现了HFMI运营商或HFMI设备对疲劳寿命的显着影响。然而，疲劳检测结果的散射因HFMI操作员而变化，并表明不同的HFMI运算符可以产生一致的治疗结果。找到了对HFMI刀具半径的疲劳寿命的相当大的影响，其中2mm刀具半径与1.5mm刀具半径相比显示出相当大的疲劳寿命。根据IIW（Marquis和Barsoum 2016），对于钢级SY = 700 MPa，疲劳强度推荐是磁铁160（M = 5），用于横向加强型接头，根据ISO 5817（ISO / TC）在治疗之前，44 / SC 10 2011）。在目前的研究中可以观察到，疲劳测试的HFMI处理的焊接接头，焊接质量D焊接，与IIW建议一致。

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