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Project TitleAltering Material Strength via Friction Stir Processing Patterns
Track Code5401
Short Description

The invention uses friction stirring to create patterns that improve the structural performance of metallic alloys to better withstand or absorb mechanical impact.

Abstract

The invention uses friction stirring to create patterns that improve the structural performance of metallic alloys to better withstand or absorb mechanical impact.

The capacity to dissipate energy in the event of an impact is an important design consideration for a variety of structures, where a common goal is to achieve a repeatable and predictable deformation. This can be particularly challenging for certain loads, such as compressive axial loads in which a component is subject to buckling.

By locally altering the mechanical strength to increase or decrease it selectively according to the geometry and loading, this invention addresses the challenge without changing the part shape. The structural response of a component can then be controlled in terms of location and method of deformation, resulting in a repeatable collapse mode. The technology promises to be useful in automotive and other applications where components are designed to absorb crash energy.

 

Potential Applications: structural components and other energy-absorbing elements for vehicles, aerospace, etc.

 

Advantages: predictable, repeatable deformation

 
Tagsmaterials, metals, Novel Processes, physical science
 
Posted DateAug 20, 2012 2:52 PM

Researcher

Name
Paul Dawson

Additional Information

Patent application: WO2011137300

Licensing Contact

Martin Teschl
mt439@cornell.edu
(607) 254-4454