DTU Studieprojekt - Advanced friction modelling asperity flattening with bi-axial subsurface deformation

Advanced friction modelling asperity flattening with bi-axial subsurface deformation

Udbyder
Vejleder
Sted
København og omegn
Background
Friction during metal forming processes is complex and in conventional friction models, such as Coulomb’s law or the constant friction law, not realistically represented. Particularly in sheet metal forming, as employed in the automotive industry for instance, the fact that full contact between tool and workpiece is not necessarily present makes those models not suitable. In order to understand more about how friction evolves throughout sheet forming processes we need to look at the microscopic surface of a metal and start modelling those as realistically as possible.

Here, the asperity deformation (flattening) as function of the normal pressure, subsurface deformation, material properties and surface condition is of major interest (Nielsen & Bay, 2018). So far, only few researchers as Nielsen et al. (Nielsen, 2016) attempted modelling asperity deformation with uni-axial subsurface deformation.

Objectives of this project:
This project aims to model asperity flattening at high normal pressures under small bi-axial sub-surface deformation in order to derive new insights on friction during metal forming. The objectives are the following:

· Understand challenges in friction and friction modelling during metal forming operations

· Numerical simulations of friction experiments

· Design of tools and workpieces

· Conduct experimental work and compare the results to numerical findings

For more information contact us!
Max Zwicker (PhD student, mfrz@mek.dtu.dk)

Chris V. Nielsen (associate professor, cvni@mek.dtu.dk)

References:

• Nielsen, C. V., and N. Bay. "Review of friction modeling in metal forming processes."Journal of Materials Processing Technology 255 (2018): 234-241.
• Nielsen, C. V., Martins, P. A., & Bay, N. (2016).”Modelling of real area of contact between tool and workpiece in metal forming processes including the influence of subsurface deformation.” CIRP Annals, 65(1), 261-264.

Emneord

• Konstruktion og mekanik
• Elektroteknologi
• Energi
• Informationsteknologi
• Materialer
• Produktion og ledelse
• Forbrændingsmotorer
• Kyster og havne
• Maskinkonstruktion
• Skibe og off-shore-konstruktioner
• Robotteknik og automation
• Energiproduktion
• Kraftværker
• Entreprenørskab
• Innovation og produktudvikling
• Livscyklusanalyse
• Operationsanalyse

• Automotive
• BiomedicalEngineering
• experimental
• FEM
• friction
• FrictionModel
• FundamentalResearch
• lubrication
• Metalforming
• modelling
• numerical
• Sheetforming

Navn
Maximilian Felix Roman Zwicker

Stilling
Ph.d.-studerende

Mail
mfrz@mek.dtu.dk

Vejleder-info
Bachelor i Produktion og Konstruktion
Vejleder
Maximilian Felix Roman Zwicker

ECTS-point
30

Type
Afgangsprojekt, Bachelorprojekt, Kandidatspeciale, Specialkursus

Diplomingeniør, Produktion
Vejleder
Maximilian Felix Roman Zwicker

ECTS-point
30

Type
Afgangsprojekt, Bachelorprojekt, Kandidatspeciale, Specialkursus

Diplomingeniør, Maskinteknik
Vejleder
Maximilian Felix Roman Zwicker

ECTS-point
30

Type
Afgangsprojekt, Bachelorprojekt, Kandidatspeciale, Specialkursus

Kandidatuddannelsen i Konstruktion og Mekanik
Vejleder
Maximilian Felix Roman Zwicker

ECTS-point
30

Type
Afgangsprojekt, Bachelorprojekt, Kandidatspeciale, Specialkursus

Kandidatuddannelsen i Materiale- og Procesteknologi
Vejleder
Maximilian Felix Roman Zwicker

ECTS-point
30

Type
Afgangsprojekt, Bachelorprojekt, Kandidatspeciale, Specialkursus