US 12,296,376 B2
Apparatus and a method for material forming by impact
Erika Henriksson, Skoghall (SE)
Assigned to CELL IMPACT AB, Karlskoga (SE)
Appl. No. 17/906,668
Filed by Cell Impact AB, Karlskoga (SE)
PCT Filed Mar. 17, 2021, PCT No. PCT/EP2021/056826
§ 371(c)(1), (2) Date Sep. 19, 2022,
PCT Pub. No. WO2021/197853, PCT Pub. Date Oct. 7, 2021.
Claims priority of application No. 2050376-9 (SE), filed on Apr. 2, 2020.
Prior Publication US 2023/0356286 A1, Nov. 9, 2023
Int. Cl. B21J 7/28 (2006.01); B21J 5/00 (2006.01); B21J 13/04 (2006.01)
CPC B21J 7/28 (2013.01) [B21J 5/00 (2013.01); B21J 13/04 (2013.01)] 19 Claims
OG exemplary drawing
 
1. An apparatus for material forming, by means of a tool (4′) and a drive unit, the apparatus being arranged to move the drive unit to provide kinetic energy to the tool, for the tool to strike a work material, so as to form the work material, the apparatus comprising an impact head between the drive unit and the tool, and the apparatus configured to provide the kinetic energy to the tool by the drive unit striking the impact head, wherein at least a peripheral region of the impact head is configured to move in relation to the tool laterally to a direction of the stroke of the drive unit, wherein the entire impact head is arranged to expand laterally in relation to the tool.