Modified Friction Stir Channeling: A Novel Technique for Fabrication of Friction Stir Channel

Rashidi, Arash; Mostafapour, Amir; Salahi, Salar; Rezazadeh, Vahid

doi:10.4028/www.scientific.net/amm.302.365

Cited by 23 publications

(16 citation statements)

References 10 publications

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“…Later, in 2009, Balasubramanian et al [4] presented the characterization of these channels. Rashidi et al [5] reported similar FSC concept with modifications in the tool design and positioning. Instead of threaded tool probe as in Mishra's concept, Rashidi et al channeled aluminum with smooth cylindrical probe with a tilt angle and non-threaded conical probe without a tilt angle and with a clearance between the shoulder and the workpiece [6].…”

Section: Introductionmentioning

confidence: 83%

Application of hybrid friction stir channeling technique to improve the cooling efficiency of electronic components

et al. 2018

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Hybrid friction stir channeling (HFSC) is a new friction stir-based method for producing internal, closed channels created simultaneously during welding of multiple metal plates. Differently from conventional friction stir channeling, that is only able to produce channels in a monolithic component, HFSC can be applied to complex structural systems involving multiple components made of similar or dissimilar materials. In this study, the channels manufactured by HFSC were open in a structural system made of AA5083, with one base plate of 5 mm thick, and one overlapping plate of 8 mm thick, used as a rib, containing the channel along conformal cooling path. The thermal performance of the HFSC channel is compared with a conventional channel, with similar shape and path, produced by milling. The channels being tested are part of an electronic device containing multiple heat sources. The HFSC channel presents 30 to 40% lower steady-state temperature and 33% higher cooling rate during the transient period than those of the milled version. Compared with the milled channel, the heat extraction capacity, per unit of mechanical pumping power, is higher for the HFSC channel. Surface roughness, microhardness, and microstructural analysis of HFSC channels are investigated to characterize the HFSC channel.

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Section: Introductionmentioning

confidence: 83%

Application of hybrid friction stir channeling technique to improve the cooling efficiency of electronic components

et al. 2018

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“…Afterwards, Rashidi et al [4] proposed a concept of conducting the FSC process with a non-threaded probe with a certain tilt angle and a gap between the shoulder and the component being processed. But because the approach is based on the same gap presented by [1], between the shoulder and the top surface of the base material being processed, the size of the channels is also limited.…”

Section: Introductionmentioning

confidence: 99%

“…Although Balasubramanian et al [6] state that all the channels produced are stable and continuous, a study was later published questioning that stability. Rashidi et al [4] claim that the stability of the channels can be solved using a non-threaded tool probe because this has the ability of maintaining the material flow constant during the process. Another study was published by Rashidi et al [7], investigating the material flow using the broken tool probe technique in order to understand the channel formation.…”

Section: Introductionmentioning

confidence: 99%

Monitoring of the mechanical load and thermal history during friction stir channelling under constant position and constant force control modes

Vidal

Infante

Vilaça

2020

Journal of Manufacturing Processes

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In the present investigation, constant position and constant force process control modes; and representative process temperature measurements were analysed during the application of the friction stir channelling process. The experimental tests were carried out using rolled plates of AA5083-H111 with thickness of 15 mm. Results show that the FSC process was found not stable during the forward traverse movement stage when it is performed via position control. For both control modes, the tool was subjected to a more severe loading during the initial plunge than during the channelling period. Moreover, it was found that the tool vertical position is not significantly affected during the channelling stage when the process was force controlled. From the temperature measurements carried out, it was recorded a maximum process temperature of about 330°C.

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“…On the AA5083 monolithic plate, a technique of modified friction stir channeling has been applied in making the channel [4]. and the FSC, it is obtained that the comparison of the fabrication channel produced using MFSC shows better results than the FSC process [5]. The MFSC technique has been used in two geometric tools in the form of an upward conical pin and straight cylindrical pin to construct a channel on the AA 5083 monolithic plate [6].…”

Section: Introductionmentioning

confidence: 99%

Effect of FSW Heating Base Temperature on Tensile Strength and Hardness of AA 1100 Welds

Hadi

Setiawan²,

Nugroho³

et al. 2020

Intek

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The research objective was to determine the effect of heating base temperature on tensile strength and hardness of AA 1100 welds in Friction Stir Welding (FSW). The research methodology includes preparing work pieces of size 150 mm x 100 mm x 3.6 mm from aluminium alloy AA1100 series, making work piece clamps that are suitable for the milling machine used, preparing heating plates 500 Watt for FSW, preparing tools from AISI-H13 material with a shoulder diameter of 20 mm and pin size of M5 x 3.4 mm for FSW, the implementation of FSW with a rotating speed of 1750 rpm and translation speed of 10 mm/minute, preparing hardness test specimens, preparing tensile test specimens refers to ASTM E8-13a, and data analysis of hardness test and tensile test results. The FSW results show that the hardness value increases with the increase in the width of the heating plate linearly for a temperature of 200oC from 10 mm to 30 mm which indicates better conditions, meanwhile decreases at a temperature of 175oC for heating plate width from 10 mm to 20 mm, but increases to 30 mm which is different for the temperature of 250oC and temperature of 300oC which have increased from 10 mm to 20 mm, but decreases towards 30 mm, and than the correlation between AA 1100 tensile strength and surface hardness of 3 heating plate widths is shown with the function of tensile strength, s (MPa) = -0.9699 x surface hardness (HV) + 102.01.

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Modified Friction Stir Channeling: A Novel Technique for Fabrication of Friction Stir Channel

Cited by 23 publications

References 10 publications

Application of hybrid friction stir channeling technique to improve the cooling efficiency of electronic components

Application of hybrid friction stir channeling technique to improve the cooling efficiency of electronic components

Monitoring of the mechanical load and thermal history during friction stir channelling under constant position and constant force control modes

Effect of FSW Heating Base Temperature on Tensile Strength and Hardness of AA 1100 Welds

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