Fatigue assessment of laser beam and friction stir welded joints made of aluminium

Mucci, G.; Bernhard, Julian; Baumgartner, J. Craig; Frendo, Francesco

doi:10.1007/s40194-020-01045-4

Cited by 3 publications

(3 citation statements)

References 51 publications

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“…In the work of Mucci et al, [ 37 ] the fatigue strength of LBW and FSW overlap specimens made of AA7075 was investigated experimentally. The evaluation based on the notch stress approach, reference radius concept with r ref = 0.05 mm, leads to conservative results with reference to the notch stress fatigue class FAT 160.…”

Section: Introductionmentioning

confidence: 99%

Fatigue Strength Assessment of Laser Beam Welded Joints Made of AA7075 and Magnetic Pulse Welded Joints Made of AA7075 and 3D‐Printed AlSi10Mg

et al. 2023

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The use of 7000 aluminum alloys has an important role in future lightweight structures in the field of mobility due to the low density and high strength. However, these alloys can only be fusion welded to a limited extent because welding defects can rarely be prevented. For this reason, investigations are carried out to identify the most suitable welding parameters for two processes: laser beam and magnetic pulse welding. Herein, laser beam welding is successfully used to manufacture a roll‐formed and longitudinally welded pipe made of AA7075 and joined by magnetic pulse welding with a 3D‐printed lug‐tube made of AlSi10Mg. The fatigue strength of these pipe joints and of laser beam welded butt joint specimens is determined using load‐controlled fatigue tests. For the characterization of the specimens, cross sections are prepared and examined metallographically, which reflect the local weld seam geometry in the joining area. A fatigue assessment is made using linear‐elastic approaches. The reference radius concept is applied to map the influence of geometric notches on the fatigue strength, assuming linear‐elastic stress–strain behavior. It is shown that the recommended notch stress fatigue class FAT 178 (von Mises stress) can be applied for a safe and reliable fatigue assessment.

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Section: Introductionmentioning

confidence: 99%

Fatigue Strength Assessment of Laser Beam Welded Joints Made of AA7075 and Magnetic Pulse Welded Joints Made of AA7075 and 3D‐Printed AlSi10Mg

et al. 2023

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show abstract

“…Studies on the fatigue behaviour of FSW joints in different applications exist in the literature. Both small-and large-scale fatigue tests have been designed and conducted [4,[16][17][18]24,[26][27][28][41][42][43][44][45][46][47][48][49][50][51][52]. The majority of these tests are for butt [4,18,44,45] and lap-type FSW joints [46][47][48][49][50]; the fatigue behaviour of butt-lap FSW joints of aluminum extrusions has, however, rarely been examined.…”

Section: Introductionmentioning

confidence: 99%

“…Both small-and large-scale fatigue tests have been designed and conducted [4,[16][17][18]24,[26][27][28][41][42][43][44][45][46][47][48][49][50][51][52]. The majority of these tests are for butt [4,18,44,45] and lap-type FSW joints [46][47][48][49][50]; the fatigue behaviour of butt-lap FSW joints of aluminum extrusions has, however, rarely been examined. Texier et al [17] investigated the fatigue behaviour of butt-lap FSW and fusion-based GMAW (gas metal arc welding) joints from tensile fatigue tests on small-scale specimens extracted from AA 6061-T6 alloy extruded profiles used in the automotive industry (joint thickness ≈ 9.4 mm).…”

Section: Introductionmentioning

confidence: 99%