Patent ID: 11908989
Assignee: SCHULER PRESSEN GMBH
Field: Machine tools (Mechanical engineering)
Classification: CPC H  B  Y | IPC B  H

Claim 0:
1. Method for manufacturing a unilaterally open prismatic battery cell container (21) comprising the following steps:
providing a slug (38) having a length that is at least four to five times longer than the width of the slug (38), the slug (38) having a larger cross-section area in two length end regions adjacent to short sides than in a center region between the two length end regions,
manufacturing a unilaterally open extruded container (41) by extrusion of the slug (38),
first ironing of the extruded container (41) into an ironed container (65) in a first ironing station (25), wherein the extruded container (41) is partly moved through a first die tool (27) in working direction (A) and out of the first die tool (27) opposite the working direction (A) in a retracting direction (R) by a first ironing ram (26),
second ironing of the ironed container (65) into an intermediate container (77) in a second ironing station (28), wherein the ironed container (65) is partly moved through a second die tool (30) in working direction (A) and out of the second die tool (30) opposite the working direction (A) in a retracting direction (R) by a second ironing ram (29),
separating an upper edge (82) of the intermediate container (77) for forming the battery cell container (21).