Bollhoff Verbindungstechnik Gmbh

Audi Ag

Delo Industrieklebstoffe Gmbh

Bollhoff Verbindungstechnikk Gmbh

Bollhoff Otalu S.a.

Delo Industrieklebstoffe Gmbh & Co. Kg

Torsten Draht

Sergej Hartwig-Biglau

Bernd Haesler

Gerson Meschut

Michael Stumpf

Iris Spiller-Bohnenkamp

Marc Steinig

Jochen Rintelmann

Holger Thommes

Carsten Bär

Carsten Löschner

Hans Jörg Lang

Stefan Rehling

Franz Drüke

Adnan Kolac

Mathias Krause

Jean-François Jambut

Wilhelm Westermann

Andreas Wenzel

Michael Brand

Joerg Moehring

Hans-Jörg Lang

Dorte Trienens

André Hermann Nobbenhuis

Christian Walther

Gudrun Weigel

Hans-Jorg Lang

Marion Keiser

Berthold Huhn

Andre Kleinemeier

Matthias Vornheder

Nadja Berger

Julien Romala

Jörg Möhring

Additive manufacturing method of a component with a thread opening and an insert thread at its radial inner wall, for a wire thread insert to form a standard thread. A 3D component drawing includes the thread opening and the insert thread arranged in there, which is defined by with

Additively manufactured component with insert thread, manufacturing method for the same as well as component with wire thread insert installed in the insert thread

A welding auxiliary joining part with which a welding connection, more particularly a resistance welding connection, can be established between a first component A made of a poorly weldable material and a second component made of weldable material. The welding auxiliary joining part is distinguished by a cylindrical punch shaft that can be punchingly pressed into the first component A approximately rotation-free. The punch shaft has an element head at the head underside of which only one continuous circumferential clamping ring is arranged that projects axially in the direction of the punch shaft.

Welding auxiliary joining part

A welding auxiliary joining part is disclosed in the shape of a stud having a head, a shank and a tip. The welding auxiliary joining part is driven in by means of a mechanical-thermal setting method into a component of non- or poorly weldable material. During the driving in, a welding head is created due to mechanical deformation so that the component may be connected subsequently via the welding auxiliary joining part to a further component of weldable material by means of welding.

Welding auxiliary joining part and method for connecting components by way of said welding auxiliary joining part

A supply device with which elements in disordered form, in particular connection elements as bulk elements, are suppliable to a second receiving volume. The supply device includes a first receiving container from which, via an outlet opening, a plurality of elements is deliverable to a second receiving container. The second receiving container may consist of an oscillation feeder. The oscillation energy of the oscillation feeder is specifically transmitted onto the elements, which are stored in the first receiving container. With the help of the transmitted oscillations, elements are transferred from the first receiving container via a transfer zone from the first receiving container into the second receiving container.

Supply device, retrofit kit for a vibration feeder as well as a manufacturing method and an operation method for the supply device

A method for determining the quality of a joint fabricated in a plurality of metal sheets by a joining device and a control method. The joining device comprises a drive element, and a hold-down device The method may have the following steps: moving the drive element to move the punch and, via at least one first and one second spring, the hold-down device; recording of a force applied by the drive element with a first sensor and of a distance covered by the drive element with a second sensor during a movement of the drive element in a mating direction and opposite thereto as a force/displacement curve; and comparing a linear relief range in the recorded curve with a reference curve.

Method for determining the quality of a joint, and control method for a process of joining a plurality of metal sheets by means of a joining device

A setting welding device is set forth for setting stud-like auxiliary joining parts in a plurality of layers of material and subjecting them to a mechanical-thermoforming process on a second layer of material and connecting them to said second layer by way of a welding operation. For this purpose, the punch is used to apply to the welding auxiliary joining part mechanical and thermal loads that follow prescribed characteristic force and current curves. Furthermore, a corresponding connecting method that can be realized with the aid of the setting welding device is also disclosed.

Setting welding device, modular components thereof and a continuous connecting method that can be carried out with such a device

The disclosure is related to various connecting methods for a welding auxiliary joining part having a head and a rounded tip for setting in at least one first component having a die as counter-bearing, which has a concave recess with an inner wall having at least in sub-areas an arc shape and having a matrix radius MR in the range from 1.0 mm&#x2264;MR&#x2264;60 mm, for preparing a subsequent welding method. The geometry of the welding auxiliary joining part and the die meet the following condition: in particular wherein SR designates a tip radius of the rounded tip of the welding auxiliary joining part.

Welding auxiliary joining part, matrixes for placing the welding auxiliary joining part, and connection and production methods for the welding auxiliary joining part and the matrixes

A joining device, in particular a self-piercing rivet tool, is disclosed that is operated with the assistance of different drive steps. These drive steps comprise at least one movement step with a fast punch speed, and a power step with a low punch speed and strong punch force. In combination with the joining device, a clamping device module is use that, based on the at least one spring in the clamping device module, generates discernible threshold values in the force/punch path diagram, with the assistance of which a switchover between different drive steps of the joining device is activated. Moreover, the present disclosure relates to a joining method for the above-described joining device.

Multi-step joining device and joining method therefor

A welding auxiliary joining part in the shape of a stud having a head, a shank and a tip is disclosed. The welding auxiliary joining part is driven into a component made of a non- or poorly weldable material by means of a setting method. A welding head is created during driving-in due to mechanical deformation such that subsequently the component can be connected by welding via the welding auxiliary joining part to a further component made of a weldable material.

Welding auxiliary joining part with a plastically deformable tip region; method for connecting components with this welding auxiliary joining part

The invention relates to a connection comprising at least two components having the following features: a first component and a second component, of which at least the second component comprises reinforced plastic, a self-piercing connection element having a head and a shaft, the head thereof being supported on the first component and the shaft thereof running completely through the first and the second component, and a disc-shaped counter bearing to which the shaft is fastened such that the at least two components are fastened between the head and the counter bearing. The invention further relates to a method for the production of said connection.

Connection between two components made of reinforced plastic and method for the production thereof

The invention relates to a connection comprising at least two components having the following features: a first component and a second component, of which at least the second component comprises reinforced plastic, a self-piercing connection element () having a head and a shaft, the head thereof being supported on the first component and the shaft thereof running completely through the first and the second component, and a disc-shaped counter bearing to which the shaft is fastened such that the at least two components are fastened between the head and the counter bearing. The invention further relates to a method for the production of said connection.

A process monitoring method for a joining operation of a joining element at a speed of at least 5 m/s, in particular placing a bolt at least 10 m/s into at least one component with the aid of a placing device which has the following features: A plunger for placing the joining element, a buffer which limits a maximum deflection of the plunger in the joining direction, and a distance measurement with which the deflection of the plunger can be detected, wherein the process monitoring comprises the following steps: Detecting the travel of the plunger during the joining operation as a function of time in the form of a distance-time curve, detecting a placement of the plunger on the buffer, evaluating the distance-time curve such that, in the presence of at least one maximum followed by at least one minimum in the distance-time curve and without the plunger contacting the buffer, a joint connection is judged to be OK.

Process monitoring for high-speed joining

A method is described for establishing a nail connection between two components as well as a nail therefor. The nail is driven through the non-prepunched components in the joining area at a high speed such that the nail tip fully penetrates both components and forms a toric-shaped material bulge in the nail-head-side component, which protrudes into a circular groove of the nail head, and a crater-shaped material bulge is formed in the component facing away from the nail head, which protrudes in the opposite direction.

Method for establishing a nail connection and nails therefor

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Schloss Holte, Germany

Torsten Draht