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Wöhr GmbH

Consulting and design

The realization of the customer’s ideas of functionality, design, quality and costs is the task of our construction team, as well as the development of new solutions and ideas.
Drawings and data files suitable for production are generated using the most up-to-date hardware and software either on the basis of our own constructions or by data transfer with .dxf- or .dwg-files.
Our experienced staff members are in constant discussions with you as our customer in order to implement your projects efficiently and professionally. For this purpose, we have implemented an integrated CAD-/CAM- and CAE-system which reduces both errors and processing times. Our production control is based upon a powerful ERP-system.
This highly important project stage is often crucial for the overall success of the project. Which means that you, as our customer, will profit from the wide vertical and horizontal ranges of manufacture of our company as much as our staff does in terms of continued professional development and training.

3D-Zeichnung-3

 

Punching, nibbling and forming

CNC-punching and nibbling are classical methods for cutting apertures in metal workpieces and/or plastic or for forming such parts. By using modern, highly available machines which are part of our integrated CAD-/CAM- or CAE-process chain, a first-class manufacturing technology with considerable advantages is achieved.
The punching- /nibbling process is based first of all on high speed and precision and can do a lot more than just cutting apertures.
It is possible to parts on the CNC-punching machine, i.e. counterbores and threads can be cut as well as bent edges (up to 25mm height) or markings on the parts.
By means of  sheet metal rolling machines, contours and shapes can be formed (continuous forming) in one single pass and no longer in many consecutive ones. This reduces the machining time and the production costs. The forming components consist of two steel rollers placed in the male and female die parts. The sheet metal is clamped and drawn through between these rollers. During this process, the rollers are turning. As a result of this, we obtain a continuous ghost line, and long beads or steps can be produced economically.
Upon the detaching of the punchings, usually nibble marks/punch noses are formed, which are especially annoying when we are dealing with visible edges.
To counter this effect, we use special shearing tools, and thus obtain smooth, top-quality cutting edges. This technique can be used for sheet thicknesses up to 3mm and has two advantages over laser cutting: lower costs and non-oxidizing edges; thus substantial economies can be achieved with respect to downstream varnishing-/coating processes.
Further improvements in productivity can be obtained by means of process capable part removal.
B
y means of intelligent tool management- and set-up and take-down concepts, we make sure that the roadmap to production readiness is as short as possible. To ensure a high availability of the tools, they are polished and sharpened in-house. By combining the above processes, parts can be processed and finished in one single machine setting.
In times of increasing material costs, profit from the low handling expenses and high productivity of these technologies. We will be glad to help you with the selection of the most cost-efficient procedure..

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Stanzmaschine_7

 

Milling/HSC-milling/engraving:

Profit from our longtime experience in the highly economical and high-quality processing of aluminum and plastics by means of milling, drilling and engraving of front panels, enclosures, profiles, cooling elements....
The machines used in this application area are designed to meet high demands with respect to milling performance and precision.

We offer high speed processing (HSC-milling) with up to 60.000 rpm of aluminum and plastics, complex 3D-milling with small tools, precise deep engraving on any surface as well as nesting.
Put us to the test and profit from our experience!

Fräsmaschine4

 

Thread cutting

The threads are either tapped during the machining operation on the respective punching or milling machine, or else later at separate workstations. The machines used for this purpose form the basis of process capable thread cutting:

  • no broken die or waste
  • torque-controlled (torque window)
  • depth-controlled
  • production at optimal cutting speed
  • integrated tool wear detection
  • optimization of lubricants
  • quality certificate / -documentation optionally available
  • serial and parallel interfaces optionally available
Gewinde schneiden 2

 

 

Bending/canting

From simple sheet metal components to complex bent precision parts: with our hydraulic CNC - bending press, we knock everything into shape.
The CNC-controlled back stop and the quick change tool system improve our flexibility and productivity.
When choosing the appropriate bending technology, we attach great importance to high availability, an integrated safety concept and a well-engineered sensor technology to ensure high process capability.
The angle sensor detects thickness tolerances in the sheet. Upon the first deviation, the rebound is measured by the sensors by means of angle measurement.
If the angle lies beyond the tolerance range of +/-0.3°, end bending is required. The machine program communicating with the sensor is based upon a large empirical database for all bending parameters.

 

 

Shearing

The blanks are sheared either with an electromechanic plate shear or with a punching machine, depending on the project. Both metals and plastic materials can be sheared with great precision.

Zuschlagen-Blechteil-3

 

 

Sawing

Reliable - economical - true to size
In this process, both plate saws and special profile saws are at our disposal to ensure true-to-size trimming as well as precise miter cuts.
High availability thanks to our extensive stock keeping of raw material and high process reliability e.g. by means of a digital length stop go without saying for us.
Both plastic and metal components can be processed.

 

 

Welding

The edges of the processed and formed enclosures are welded in order to join them with material connection and positive locking.
These procedures can be offered for all metals thanks to various different welding methods (WIG, MIG, MAG).

Schweißen1

 

Polishing and deburring

We apply both hand- and machine-operated polishing processes. The polishing serves different purposes: as finishing following a smoothing- or welding process, for deburring or as decorative grinding following the mechanical processing.
Thanks to our wet exhaust system, when it comes to the polishing of easily combustible/explosive materials, we have a solution at our disposal which ensures not only a high separation efficiency, but also the compliance with the TA Luft- and BG-regulations (technical guideline for the prevention of air pollution and guidelines for preventing hazards from dust explosions in grinding processes)

Oberflächenschliff-Gehäuseteile-4

 

Pressing-in studs / welding and riveting studs

Printed circuit boards, mounting plates... are mounted by means of threaded pins or nuts inserted into front plates or enclosures. They are either pressed in or welded.
The pressing-in of the studs on machines specially developed for this purpose ensures a positive connection permanently free of play by means of cold deformation starting from a sheet thickness of 0.5mm.
Further advantages of this technique are its very high process capability and the possibility to combine different materials (e.g. steel or stainless steel bolts are used with plastics or light metals).

Welding: A stud welding system with process control ensures a perfect connection between the stud and the basic material. Because of the very low burn-in depth, stud welding is mostly used with thin-walled sheets from 0.5mm on. However, the welding process leaves no traces on most sheets. Even with thin sheets, no marks, discolorings or deformations form on the rear side (visible side); this applies also to plastic-coated or electroplated surfaces.
We will be glad to help you with the selection of the most suitable procedure.

neue-Bolzenpresse-3

 

Drilling

Top-quality hand-operated or CNC-controlled drilling machines with low speed and high speed levels are at our disposal for processing a large variety of materials.

Bohren 2

 

Turning on a lathe

As we use a universal turning lathe, we are able to produce prototypes and small series quickly.

 

Surface technology and printing

From the cleaning/pre-treatment of the parts to the varnishing or powder-coating and on to the printing, we offer you the complete range of surface technology from one source. Profit from our 40 years of know-how in this field!

For more information, please look at www.Industrielackierungen.de

Pulverbeschichtung-klein

 

Glass bead blasting

In particular to the production of decorative surfaces of front plates and housings, as well as to design blasting of cast parts we use a high performance jet plant, in which we preferentially work with glass beads.

Pictures of our jet plant you find here.

Thomas Kübler in Strahlanlage

 

Complete solutions and system technology

We do not “only” produce empty enclosures, but we mount, convert and test assemblies and devices, and we develop complete functional unities with electronic components.
For this purpose, we dispose of adequate mounting and storage capacities, as well as of ESD-workstations.
Profit from our all-round and longtime experience especially in the field of input- and display devices as well as medical technology.
In-house development and production of foil- and short stroke keyboards round out our product offerings (see www.membrane-keyboard.com )

What can we do for you?

TAV_Box

 

Logistics

We also attach great importance to the last link in the supply chain. We are convinced that logistics means more than just transporting the products to the customer.
Profit from our extensive experience from the professional packing of the goods to the global export procedure
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© 2001-2013 Richard Wöhr GmbH    Gräfenau 58-60   D-75339 Höfen/Enz  Impressum

Tel: ++49(0)7081/9540-0

Fax: ++49(0)7081/9540-90

Email: sheet-metal@woehrgmbh.de

Design und Webhosting durch RPF Netdesign letztes Update: 17.01.2013