Laser assisted self-pierce riveting of AZ31 magnesium alloy strips

Durandet, Yvonne; Deam, Rowan; Beer, Aiden; Song, Wei; Blacket, Stuart

doi:10.1016/j.matdes.2009.10.038

Cited by 102 publications

(48 citation statements)

References 10 publications

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“…Since DRX is improved at elevated temperatures, cracking of the joint can be prevented by preheating the AZ31 magnesium alloy prior to SPR. In fact, experiments have shown that riveting AZ31 magnesium alloy at elevated temperatures largely removed the defects from the joint at temperatures of 200 o C or higher [5,8]. In addition, it has been demonstrated that the joint strength increased when the preheat temperature was raised from ambient to 200°C.…”

Section: Temperature Dependent Activation Term In H(t) Equation (Unitmentioning

confidence: 99%

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Finite Element Analysis of Self-Pierce Riveting in Magnesium Alloys Sheets

Moraes

Jordon

Bammann

2015

Journal of Engineering Materials and Technology

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Conventional fusion joining methods such as resistance spot welding have been demonstrated to not be effective for magnesium alloys. Therefore, self-pierce riveting (SPR) has been presented as an attractive joining technique for these lightweight metals. However, SPR must be performed at elevated temperatures because of the low ductility of magnesium alloys at room temperature. Even though the SPR joining process has been established on magnesium alloys, this joining process is not optimized. As such, this study establishes the first attempt at simulating the SPR of magnesium alloys through the use of the finite element

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Section: Temperature Dependent Activation Term In H(t) Equation (Unitmentioning

confidence: 99%

“…L th = D th + W th (8) Since the damage and thermal parts of the deformation gradient are assumed to be isotropic, there is no skew symmetric part for either. So,…”

Section: Numerical Techniquementioning

confidence: 99%

Finite Element Analysis of Self-Pierce Riveting in Magnesium Alloys Sheets

Moraes

Jordon

Bammann

2015

Journal of Engineering Materials and Technology

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“…The multi-disciplinary research into self-pierce riveting, enabling its introduction into the industry, has been global, involving companies including Audi, BMW, General Motors, Peugeot-Citroën and Jaguar Land Rover and research groups in Australia [16], China [17], France [18], Germany [19], Italy [20], Japan [21], Norway [22], Poland [23], Slovakia [24], UK and USA [25]. Resistance spot welding had traditionally been ignored as it was impossible to control in lightweight materials, and there was no guarantee that joints would be reliable.…”

Section: Lightermentioning

confidence: 99%

Smarter–lighter–greener: research innovations for the automotive sector

Bhattacharyya

2015

Proc. R. Soc. A.

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This paper reviews the changing nature of research underpinning the revolution in the automotive sector. Legislation controlling vehicle emissions has brought urgency to research, so we are now noticing a more rapid development of new technologies than at any time in the past century. The lightweighting of structures, the refinement of advanced propulsion systems, the advent of new smart materials, and greater in-vehicle intelligence and connectivity with transport infrastructure all require a fundamental rethink of established technologies used for many decades-defining a range of new multi-disciplinary research challenges. While meeting escalating emission penalties, cars must also fulfil the human desire for speed, reliability, beauty, refinement and elegance, qualities that mark out the truly great automobile.

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“…A nite element (FE) model of the xture and test measurement system was developed to ensure a near optimal design. Durandet et al [6] studied the laserassisted SPR (LSPR) of AZ31 magnesium alloy strips. A simple but eective thermal analysis of LSPR was presented that enabled both the absorption of the laser radiation and heat transfer between plies to be determined.…”

Section: Introductionmentioning

confidence: 99%

Strength and Fracture Analysis of Single-Lap Self-Pierce Riveted Joints

Liu

et al. 2015

Acta Phys. Pol. A

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Due to the increased use of lightweight sheet materials, there has been a signicant increase in the use of self-pierce riveting. This paper deals with the strength and fracture mechanism of single-lap self-pierce riveted joints. The online window technique was introduced in the single-lap self-pierce riveting processes for evaluating the quality of joints. Signals obtained from sensors were amplied and transferred to the data acquisition system which measures, processes and saves the signals. Monotonic tensile tests were carried out to measure the ultimate tensile strengths for the single-lap self-pierce riveted joints. For investigating the fracture mechanism of the singlelap self-pierce riveted joints, the electrolytic polishing and anode lm coating were used for dealing with the cross-section. The dierential interference contrast method was used for observing the micro-structure of the crosssection of the joints. The distribution of the hardness in the cross-section of the single-lap self-pierce riveted joints was also studied. The normal hypothesis tests were performed to examine the rationality of the test data.

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Laser assisted self-pierce riveting of AZ31 magnesium alloy strips

Cited by 102 publications

References 10 publications

Finite Element Analysis of Self-Pierce Riveting in Magnesium Alloys Sheets

Finite Element Analysis of Self-Pierce Riveting in Magnesium Alloys Sheets

Smarter–lighter–greener: research innovations for the automotive sector

Strength and Fracture Analysis of Single-Lap Self-Pierce Riveted Joints

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