Elpatronic Ag

Elpatronics Ag

Werner Urech

Hans Aebersold

Norbert Gross

Paul Opprecht

Markus Meier

Peter Taiana

Niklaus Portmann

Jurg Opprecht

Karl Wueger

Alfonso D'Aniello

Beat Stump

Georg Benedikt

Marcus Rainer Luessi

Howard F Gordon

To form metal sheet blanks into taper tubes, a die is provided which has a conical cavity into which a conical punch plunges. The punch is led into the die along a curve. Taper tube shells can easily be fabricated by this method.

Method and device for forming conical tube casings

For the manufacture of composite panels ( ) it is proposed that they be held essentially upright by means of holding devices ( ) and that welding by means of a laser welding plant ( ) be performed in this position. This affords a considerable space saving compared with the conventional horizontal arrangement in which the composite panels are processed and handled.

Method and device for producing welded blanks

The invention relates to a molded part which is configured by initially forming a tubular body with a welded flange. Subsequently, the body is shaped in a mold placing the body under internal pressure to form a part or preform. Thus, preforms with a welded flange can be obtained and connectedn with other parts.

Method for producing a molded part and a molded part produced according to said method

In an apparatus for connecting two workpieces together by welding, the workpieces lie on supporting surfaces and are butted together at their edges to form a butt joint. The workpieces are subjected to pressure on the side opposite to the supporting surfaces. At least one supporting surface is capable of yielding under pressure, and, in so doing, changes its position in relation to the butt joint, so as to reduce any gap between the workpieces.

Apparatus for butting two workpieces together for a welding operation

In an apparatus for connecting two workpieces (1) together by a welded seam, the workpieces are held in a welding station between opposed tracks consisting of a plurality of members. The tracks run around guide rollers in a conveying direction. A clearance (a) between the guide rollers which come first in the conveying direction can be changed upon insertion of the workpieces between the tracks.

Method and apparatus for connecting two workpieces together

To form a body, a preform is produced by welding together two essentially flat sheet-metal blanks at their margins. This preform is then deformed in a mold by internal high-pressure forming to produce the desired body. In this way, complex metal bodies can easily be formed.

Method of producing and utilizing deformable workpieces for

In a process for joining two metallic workpieces together, the pieces are butted together to form a butt joint and are joined to one another in the region of the butt joint. During this operation, the workpieces are subjected to a magnetic attraction force at one side, and. can be subjected to holddown pressure on the opposite side.

Method and apparatus for connecting two metallic workpieces together

In a method for connecting two workpieces together by welding, the workpieces are placed on clamping tables by a feed unit and are joined together by a welded seam. First, the workpieces are positioned in the feed unit. The feed unit is then traversed between the clamping tables and deposits the workpieces on them. Simultaneously with its feed movement, the unit expels the workpieces welded together in the preceding cycle.

In a method for joining together two metal foils which are at least partly superimposed on one another, eg. at the margins, the metal foils are guided between two metal wires carrying an electric current and each rolling over a foil.

Method and apparatus for joining two metal foils together

To form a body, a preform is produced by welding together two essentially flat sheet-metal blanks (2,3) at their margins. This preform is then deformed in a mold by internal high-pressure forming to produce the desired body. In this way, complex metal bodies can easily be formed.

The sheets (1,2) which are to be butt welded are positioned with their edges in contact with one another. To reduce the gap (3) to a width acceptable for laser welding, at least one sheet (2) is plastically deformed along the line of the joint so that material flows towards the gap, reducing the width of the gap. In this way, sheets cut to size with much less precision can be welded together.

Process and device for welding sheets by laser to form compound sheets

In a method for connecting two workpieces together by welding, the workpieces are placed on clamping tables by a feed unit (F) and are joined together by a welded seam. First, the workpieces are positioned in the feed unit (F). The feed unit (F) is then traversed between the clamping tables and deposits the workpieces on them. Simultaneously with its feed movement, the unit (F) expels the workpieces welded together in the preceding cycle.

Method for connecting two workpieces together

A method for positioning and aligning workpieces, in particular one or more metal plates that are to be joined, against at least one stop, involves transmitting a position signal, preferably an electrical signal, between the workpiece and the stop, and using the workpiece and the stop as signal transmitters.

Method and apparatus for positioning and aligning workpieces

In a process for joining two metallic workpieces (1.1,1.2) together, the pieces are butted together to form a butt joint (2) and are joined to one another in the region of the butt joint (2). During this operation, the workpieces (1.1,1.2) are subjected to a magnetic attraction force at one side, and can be subjected to holddown pressure on the opposite side.

In a method for connecting two workpieces together by a welded seam, the workpieces are held in a welding station between opposed tracks consisting of a plurality of members. The tracks run around guide rollers in a conveying direction. A clearance (a) between the guide rollers which come first in the conveying direction can be changed upon insertion of the workpieces between the tracks.

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Werner Urech