Method of plastic forming of materials
OwnerAndrzej Korbel, Wlodzimierz Bochniakinventors
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Abstract
An improvement to a method for plastic forming of a material by rolling, forging or extrusion, by using a tool to exert a force on the material to obtain a product of desired geometry. The improvement comprises inducing in the material a reversible plastic strain in the form of shear bands localized in a zone of most intense deformation by the tool, by introducing a motion of the tool additional to a tool working motion which produces the desired geometry. The additional motion is reversible and transfers motion to the material due to intimate contact between the material and the tool.
Claims7
In a method for plastic forming of a material by rolling, forging or extrusion by using a tool to exert a force on the material to obtain a product of desired geometry,
- the improvement comprising inducing in the material a reversible plastic strain in the form of shear bands localized in a zone of most intense deformation by the tool, by introducing a motion of said tool additional to a tool working motion which produces the desired geometry, said additional motion periodically reversing and transferring motion within the material due to intimate contact between the material and the tool,
- said additional motion intruding into the structure of the deformed material and changing plastic flow thereof.
Dependencies are inferred from the claim text.