search query: @supervisor Vilaca, Pedro / total: 6
reference: 6 / 6
« previous | next »
Author:Hasani Aleni, Afshin
Title:Development of technological conditions and applications of friction stir channeling
Publication type:Master's thesis
Publication year:2014
Pages:59 + 10      Language:   eng
Department/School:Insinööritieteiden korkeakoulu
Main subject:Production Engineering   (K3002)
Supervisor:Vilaca, Pedro
Instructor:Minav, Tatiana
Electronic version URL: http://urn.fi/URN:NBN:fi:aalto-201502191902
OEVS:
Electronic archive copy is available via Aalto Thesis Database.
Instructions

Reading digital theses in the closed network of the Aalto University Harald Herlin Learning Centre

In the closed network of Learning Centre you can read digital and digitized theses not available in the open network.

The Learning Centre contact details and opening hours: https://learningcentre.aalto.fi/en/harald-herlin-learning-centre/

You can read theses on the Learning Centre customer computers, which are available on all floors.

Logging on to the customer computers

  • Aalto University staff members log on to the customer computer using the Aalto username and password.
  • Other customers log on using a shared username and password.

Opening a thesis

  • On the desktop of the customer computers, you will find an icon titled:

    Aalto Thesis Database

  • Click on the icon to search for and open the thesis you are looking for from Aaltodoc database. You can find the thesis file by clicking the link on the OEV or OEVS field.

Reading the thesis

  • You can either print the thesis or read it on the customer computer screen.
  • You cannot save the thesis file on a flash drive or email it.
  • You cannot copy text or images from the file.
  • You cannot edit the file.

Printing the thesis

  • You can print the thesis for your personal study or research use.
  • Aalto University students and staff members may print black-and-white prints on the PrintingPoint devices when using the computer with personal Aalto username and password. Color printing is possible using the printer u90203-psc3, which is located near the customer service. Color printing is subject to a charge to Aalto University students and staff members.
  • Other customers can use the printer u90203-psc3. All printing is subject to a charge to non-University members.
Location:P1 Ark Aalto     | Archive
Keywords:friction stir channeling
aluminum alloy AA6082-T6
aluminum alloy AA5083-H111
heat exchanger
conformal cooling
Abstract (eng):This thesis investigates development of technical conditions of Friction Stir Channeling (FSC) with main focus on industrial Lithium battery cooling applications.

Conventional technologies - Electrical Discharge Machining (EDM), Drilling and Milling - have limitations in creating continuous straight or continuous curved internal channels and none of them are capable of producing continuous free-path internal channel in a single step.

FSC is an innovative method within solid-state manufacturing technologies which is able to produce continuous internal channels in monolithic plates in a single step. FSC is capable of producing both straight and curved channels in metal plates with control of technical parameters similar to that of Friction Stir Welding (FSW). However, FSC is in initial phases and still more research needs to be done in order to improve FSC tools for producing channels in more diverse metals.

This thesis designs and builds new tools for FSC with improved geometrical parameters, and by means of these new tools, performs experiments in order to investigate technical condition of FSC and its capability in various industries. This thesis produces various Friction Stir (FS) channel prototypes in aluminum alloy plates AA6082-T6 and AA5083-H111. This work performs thermal and flow analysis in order to evaluate capability of FSC for battery cooling.

Following conclusions are arrived at in this thesis:

The experimental results of this work shows that by means of our improved FSC tools and by selecting the right technical parameters, high quality of channel surface finish with low roughness is obtained using position control as opposed to forced control. Moreover, FS tool rotation and travel speed affect the channel size so that channel size increases by increasing travel speed and decreasing rotation speed. Pressure tests conclude that the FS channels produced in this work can endure high pressure levels.

Furthermore, investigation and analysis in this thesis concludes that FSC has high potential in heat exchanger industries and conformal cooling channels for mould industries, and results in high productivity and low cost of production. Moreover, our thermal and flow analysis concludes that FSC has a high potential to be applied for cooling of industrial Lithium-ion batteries.
ED:2015-03-08
INSSI record number: 50644
+ add basket
« previous | next »
INSSI