Method and a device for deformation of a material body
AssigneeHydropulsor AB
InventorsLars Troive, Yngve Bergström
Life of this patent
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Abstract
The device comprises a stamping member (2) arranged to be conveyed towards and hit a material body (1) with such a velocity that a rebound motion of the stamping member (2) is generated while a permanent deformation of the material body (1) is generated. The device has structure (3) for counteracting the rebound and generating at least one additional impact of the stamping member (2) against the material body (1) within a period, during which kinetic energy in the material body (1) generates an additional deformation in the body.
Claims17
A method for adiabatic deformation of a material body (1), comprising the steps of
- conveying a stamping member (2) towards the material body (1) such that the stamping member (2) impacts (F) the material body (1) with such velocity to generate adiabatic coalescence causing permanent deformation of the material body (1) and generating a rebound motion of the stamping member (2), and
- counteracting (3) the rebound motion of the stamping member (2) and generating at least one additional impact of the stamping member (2) against the material body (1), within a period during which kinetic energy of a reciprocating wave in the material body (1), generated in connection with the rebound motion of the stamping member (2), generates additional deformation in the material body (1) by gradual activation of sliding planes or mutual displacement of powder grains in the material body (1).
A device for deformation of a material body (1), comprising
- means for receiving the material body (1) to be deformed,
- a stamping member (2) structured and arranged to impact the material body (1) with velocity such that adiabatic coalescence causing permanent deformation of the material body is produced in the material body (1) while a rebound motion of the stamping member (2) is generated, and
- means (3) structured and arranging for generating a force (F1) upon the stamping member (2) in a direction of the material body (1) and counteracting the rebound of the stamping member (2) and generating at least one additional impact of the stamping member (2) against the material body (1) within a period during which kinetic energy of a reciprocating wave in the material body (1), generated in connection with the rebound motion of the stamping member (2), generates additional deformation in the material body (1) by gradual activation of sliding planes or a mutual displacement of powder grains in the material body (1).
Dependencies are inferred from the claim text.