公开(公告)号：DE3911390A1

公开(公告)日：1990-08-23

申请号：DE3911390

申请日：1989-04-07

Applicant: ELPATRONIC AG

Inventor： ALZNAUER KURT ,  BAUMGARTNER MICHAEL ,  BOEGLI WERNER ,  BRAUER JUERGEN

IPC: B21D41/02 ,  B21D51/26

Abstract: A method and an apparatus for ensuring the dimensional accuracy of a frusto-pyramidal can body (10). During the production of the body (10) this is partially heated by means of inductors in the vicinity of its base face in the region of its broader side faces (10a,10b), before the step in which it is formed into the pyramidal frustum. In this manner, a uniform reduction in the thickness of the sheet metal is achieved in the region of the base face of the pyramidal frustum during the widening operation.

公开(公告)号：CH669921A5

公开(公告)日：1989-04-28

申请号：CH162886

申请日：1986-04-22

Applicant: ELPATRONIC AG

Inventor： WEIL WOLFGANG ,  BAUMGARTNER MICHAEL ,  LANZ ANDREAS

IPC: B21C37/08 ,  B21D51/26 ,  B23K26/244 ,  B23K26/262 ,  B23K37/04 ,  B23K37/053

公开(公告)号：DE59510211D1

公开(公告)日：2002-06-27

申请号：DE59510211

申请日：1995-06-12

Applicant: ELPATRONIC AG BERGDIETIKON

Inventor： BAUMGARTNER MICHAEL

IPC: B21D43/00 ,  B21C37/08 ,  B21D5/08 ,  B21D5/14 ,  B21D51/18 ,  B21D51/26 ,  B23K11/08

Abstract: The plane rectangular pieces of metal are supplied in quick succession to a pressure point (P) between inner and outer rollers (12,13). Each piece in turn is plastically deformed to a desired constant radius (A) in passing from an entry wedge (11) to an exit guide (33) backed by a latching groove (38) and an arcuate supporting surface (39). The bent piece is then wrapped around the outside (21) of an inner mandrel (20) and elastically deformed (70) to a different shape for ejection. Its trailing end is snapped back (B) into the groove (38) as the next piece arrives at the pressure point.

公开(公告)号：BR9603348A

公开(公告)日：1998-05-05

申请号：BR9603348

申请日：1996-08-08

Applicant: ELPATRONIC AG

Inventor： BAUMGARTNER MICHAEL

IPC: G01B15/02 ,  B21D51/26 ,  B23K11/06 ,  B23K11/16 ,  B23K11/24 ,  B23K11/25 ,  G01B21/08 ,  B23K9/08

Abstract: Electric resistance welding of sheet metal coated with an electrically conductive layer is by means of a roller welding machine. While the machine is in operation, the thickness of the coating layer is determined at least on one side in a region before the welding zone. During welding the welding current source is controlled dependent on the coating thickness in such a way that the energy introduced into the welding zone is maintained substantially constant. Also claimed is an appts. for implementation of the proposed method.

公开(公告)号：BR9505530A

公开(公告)日：1997-11-04

申请号：BR9505530

申请日：1995-11-27

Applicant: ELPATRONIC AG

Inventor： BAUMGARTNER MICHAEL ,  LEVY GIDEON

IPC: B23K11/08 ,  B21D51/26 ,  B23K11/06 ,  B23K37/00 ,  B23K37/02 ,  B23K9/32

Abstract: The rail (8) (esp., a Z-rail) for the guiding edges of sheet metal to be joined into a welding zone of a resistance welding machine is mounted on a current-carrying element (5) of the machine. The rail is provided with a layer (16) which covers the element (5) at least over the contact region with the rail, and is made of an electrically insulating but thermally well conducting material.

公开(公告)号：DK40590D0

公开(公告)日：1990-02-15

申请号：DK40590

申请日：1990-02-15

Applicant: ELPATRONIC AG

Inventor： ALZNAUER KURT ,  BAUMGARTNER MICHAEL ,  BOEGLI WERNER ,  BRAUER JUERGEN

IPC: B21D51/26 ,  B21D41/02

Abstract: A method and an apparatus for ensuring the dimensional accuracy of a frusto-pyramidal can body (10). During the production of the body (10) this is partially heated by means of inductors in the vicinity of its base face in the region of its broader side faces (10a,10b), before the step in which it is formed into the pyramidal frustum. In this manner, a uniform reduction in the thickness of the sheet metal is achieved in the region of the base face of the pyramidal frustum during the widening operation.

公开(公告)号：DE3615706A1

公开(公告)日：1987-10-29

申请号：DE3615706

申请日：1986-05-09

Applicant: ELPATRONIC AG

Inventor： WEIL WOLFGANG ,  BAUMGARTNER MICHAEL ,  LANZ ANDREAS

IPC: B21C37/08 ,  B21D51/26 ,  B23K26/244 ,  B23K26/262 ,  B23K37/04 ,  B23K37/053 ,  B65G21/20

Abstract: On a machine for welding the longitudinal edges (12,14) of rounded body blanks (10), two groups of movable guide elements (36), which exert radial guiding forces on the blanks (10), are arranged lying opposite one another with respect to the blanks. The guide elements (36) of each of the two groups are secured to an endless chain (38). Each of these chains (38) has a chain strand extending in the direction of movement (axis A) of the blanks (10), which strand is supported by a rail (52) at both sides of a welding plane (B) containing the welding zone and normal to the direction of movement of the blanks (10). The guide elements (36) move through the welding plane (B) with the blanks (10). As a result, shock-like actions on the blanks (10) in the vicinity of the welding plane (B) are avoided; consequently, the longitudinal edges (12,14) can be welded together particularly evenly, particularly by means of a laser beam.

公开(公告)号：CH688680A5

公开(公告)日：1998-01-15

申请号：CH8795

申请日：1995-01-12

Applicant: ELPATRONIC AG

Inventor： BAUMGARTNER MICHAEL ,  LEVY GIDEON DR

IPC: B23K11/06 ,  B21D51/26

公开(公告)号：DK168984B1

公开(公告)日：1994-07-25

申请号：DK40590

申请日：1990-02-15

Applicant: ELPATRONIC AG

Inventor： ALZNAUER KURT ,  BAUMGARTNER MICHAEL ,  BOEGLI WERNER ,  BRAUER JUERGEN

IPC: B21D51/26 ,  B21D41/02

Abstract: A method and an apparatus for ensuring the dimensional accuracy of a frusto-pyramidal can body (10). During the production of the body (10) this is partially heated by means of inductors in the vicinity of its base face in the region of its broader side faces (10a,10b), before the step in which it is formed into the pyramidal frustum. In this manner, a uniform reduction in the thickness of the sheet metal is achieved in the region of the base face of the pyramidal frustum during the widening operation.

公开(公告)号：BR9000701A

公开(公告)日：1991-01-22

申请号：BR9000701

申请日：1990-02-15

Applicant: ELPATRONIC AG

Inventor： ALZNAUER KURT ,  BAUMGARTNER MICHAEL ,  BOEGLI WERNER ,  FRAUER JUERGEN

IPC: B21D41/02 ,  B21D51/26

Abstract: A method and an apparatus for ensuring the dimensional accuracy of a frusto-pyramidal can body (10). During the production of the body (10) this is partially heated by means of inductors in the vicinity of its base face in the region of its broader side faces (10a,10b), before the step in which it is formed into the pyramidal frustum. In this manner, a uniform reduction in the thickness of the sheet metal is achieved in the region of the base face of the pyramidal frustum during the widening operation.