Steigerwald Strahltechnik Gmbh

Karl H Steigerwald

Wilhelm Scheffels

Dieter Konig

Peter Anderl

Johannes Koy

Clauspeter Monch

Franz Rappold

Erwin Kappelsberger

Walther Hiller

Clauspeter Moench

Rudolf Speck

Dietor Konig

Wolfgang Stamm

Klaus Glieneck

A method of energy beam welding, as electron beam welding is disclosed, wherein the supply rate of filler material is continuously varied in accordance with the width of a gap between two workpiece parts to be welded together. Further, the specific energy input per area as well as the energy distribution along the weld seam produced are also controlled as a function of the width of the gap. The control may consist in a variation of the repetition rate of beam deflections across the gap or the variation of the amplitude of a beam deflection component parallel and/or transverse of the gap.

Energy beam welding a gap of varying width

A device for compensating for spurious magnetic fields in an energy beam device includes first and second pairs of electromagnetic poles arranged along the particle path and providing magnetic fields to compensate for spurious magnetic fields which might cause the beam of charged particles to deviate from the desired beam path.

Charged particle beam processing with magnetic field compensation

A method and an apparatus for the control of the filler material supply rate in energy beam welding as electron beam welding is disclosed. The width or cross-sectional area of a gap defined by opposed faces of two workpiece parts to be joined is measured by radiation, preferably X-ray radiation, and the rate with which filler material is supplied into a welding zone produced by the energy beam is controlled in proportion to the result of the measurement. The measurement may be made in advance of the welding zone and the control is then delayed by a period of time, which the welding zone takes to arrive at the position of the gap, where the measurement was made.

Method and apparatus for control of method parameters in energy beam

In a method of welding with a beam of charged particles, outside of a mobile vacuum chamber a gap between two workpiece parts is sealed by an elongated metal foil strip, two marginal zones of which being sealingly cemented to surface portions of said workpiece parts, said marginal portions being sufficiently spaced from the gap to avoid excessive heating of the adhesive during welding a seam along said gap. The preferred material for the foil strip is copper or austenitic steel.

Sealing device for charged particle beam welding

A deep penetration weld join is produced in an energy beam welding method where the energy beam, as for example, an electron beam, is directed into the join to produce a welding zone containing molten material, and moved along the join relative to the parts of the work. Additional material is introduced into the welding zone to fill a gap and/or to influence the metallurgical composition of the weld zone. By introducing the material into the melt at an acute angle to the beam axis and at a point spaced alongside the beam axis, the additive material penetrates deeply into the molten material. The additive material may be preheated prior to its introduction to the welding zone.

Method and apparatus for energy beam welding with filling material

A beam splitter for electron beam machines with a beam splitter grid which is to be set crossways to the beam and which has a row of cross-pieces running next to one another with uniform spaces for shading the portions of beam striking it, where the cross-piece materials is replaceable in operation by cross-piece material not already acted on by the beam.

Beam splitter for electron beam machines

A process for the energy beam perforation of multi-layered artificial leather, which has an essentially impervious top layer and a support layer which is pervious to gas, wherein perforation is carried out with the support layer turned towards the beam.

Process for energy beam perforation, especially electron beam

A device for producing work-pieces, in particular foil blanks perforated by means of electron beams, for example for shoe upper parts, with an electron beam work chamber which can be evacuated, input and output appliances placed outside the work chamber for the input of unperforated work-pieces or the output of perforated work-pieces, and a transport appliance with a transport track extending between the input and output appliance and the work chamber across air locks for the controlled transport of work-piece carriers, to which the work-pieces can be applied in predetermined positions, wherein in a given work area within the work chamber a work-piece carrier which forms an element of a series of work-piece carriers lying in the transport track can be moved in at least one work track lying outside the positions of the adjacent work-pieces in the series, relative to a beam source that the work-piece can be perforated at several points by means of the beam source.

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Starnberg, Germany

Karl H Steigerwald