Molecular dynamics modeling of bonding two materials by atomic scale friction stir welding

Molecular dynamics model of atomic scale friction stir welding has been developed. Formation of a butt joint between two crystallites was modeled by means of rotating rigid conical tool traveling along the butt joint line. The formed joint had an intermixed atomic structure composed of atoms initial...

Full description

Saved in:
Bibliographic Details
Main Authors: Konovalenko, Iv. S., Konovalenko, Ig. S., Psakhie, S. G.
Format: Conference Proceeding
Language:English
Subjects:
Angular velocity
Atomic structure
Butt joints
Butt welding
Chemical bonds
Crystallites
Friction stir welding
Modelling
Molecular dynamics
Rotation
Scale (ratio)
Temperature control
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Molecular dynamics model of atomic scale friction stir welding has been developed. Formation of a butt joint between two crystallites was modeled by means of rotating rigid conical tool traveling along the butt joint line. The formed joint had an intermixed atomic structure composed of atoms initially belonged to the opposite mated piece of metal. Heat removal was modeled by adding the extra viscous force to peripheral atomic layers. This technique provides the temperature control in the tool-affected zone during welding. Auxiliary vibration action was added to the rotating tool. The model provides the variation of the tool’s angular velocity, amplitude, frequency and direction of the auxiliary vibration action to provide modeling different welding modes.
ISSN:0094-243X
1551-7616
DOI:10.1063/1.5013773