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MM-W™ MultiMaterial-Welding

MultiMaterial-Welding™ technology (MM-W™ technology) is an innovative fastening technique using ultrasonic energy to create a frictional positive connection in porous materials, sheet structures, sandwich materials, injection-moulded and pressure mouldings. To achieve this, rod or collar-shaped thermoplastic elements are used to fasten components.


Smart joining of lightweight materials

The multi-material mix used in the automotive and transport industries presents manufacturers with numerous challenges when it comes to choosing the perfect joining technology: The solutions used must be optimally tailored to the properties of the materials and the respective company's requirements. At the same time, safety and efficiency have top priority. Dipl.-Ing. Gregor Eckhard, managing director of MultiMaterial-Welding GmbH, explains in an interview which possibilities MultiMaterial-Welding can offer and how long he and his team "tinkered" with the technology until it was ready for the market.

> read more

Johann Borgers GmbH uses the technology platform MultiMaterial-Welding

Johann Borgers GmbH develops custom damping, insulation and equipment solutions for a number of different passenger car and truck models. Different joining techniques are used depending on the installation location on the outer body as well as in the engine, passenger and trunk compartments. With the new MultiMaterial-Welding (MM-W) technology from KVT-Fastening, Borgers was able to implement a fastening variant for a trunk floor with a paper honeycomb core for a luxury SUV, which could not be realized from a technical point of view using conventional methods. > read more

MultiMaterial-Welding - Fastening Technology that pays off

Manufacturing companies do not only expect proven technologies, but also efficiency and low cost when selecting fastening solutions. But how do you find the optimal process among so many available options? Florian Beer, Managing Director of KVT-Fastening GmbH gives interesting insights into the topic of MultiMaterial Welding in an interview.

Florian Beer, Managing Director of KVT-Fastening GmbH gives interesting insights into the topic of MultiMaterial Welding in an interview.
Florian Beer, Managing Director of KVT-Fastening GmbH gives interesting insights into the topic of MultiMaterial Welding in an interview.
Florian Beer, Managing Director of KVT-Fastening GmbH gives interesting insights into the topic of MultiMaterial Welding in an interview.
> Interview

Advantages:

  • Significantly stronger connections than with many other fastening methods

  • Can be used without pre-setting to take up tolerance

  • Clean processing, as no additional materials or or pre-treatment of surfaces is required and no waste is produced

  • Statistical check on the process, which guarantees the quality of the individual fastenings

  • The technology is used in a wide range of industrial processes and in other industries, such as medicine and the furniture industry

Webinar

Benefit from our expert knowledge, gain interesting insights into MultiMaterial Welding™. The webinar was already held but you can download the webinar for free. 

Topic: Connecting Modern with MultiMaterial Welding™

  • Speaker: Lasse Behrmann, MSc Project Manager Lightweight Technologies, KVT-Fastening

  • Language: The webinar was held in English - but we are also happy to answer your questions in German
> Download the webinar

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MM-W™ technology portfolio

LiteWWeight™ Core

Fastening on honeycomb structures and/or porous building components

Application:

Durable bonding solutions and at the same time fast and reliable fastening processes for lightweight honeycomb-core construction.

Advantages:

  • High strength
  • No pilot drilling needed
  • Very fast cycle times
  • Not limited to circular geometries
  • Integration into a functional building component possible

LiteWWeight™ Layer

Bonding to porous polymer and metal structures

Application:
High strength and quick-fastening solutions for foamed lightweight material structures, which can also be untightened again and re-used.

Advantages:

  • High strength
  • Durable thread
  • Very short cycle times
  • Not limited to circular geometries

InWWerse™ Disc

Bonding thin-walled polymer components

Application:

Used for covers or for an invisible fastening between two non-weldable types of plastic, when the class A surface requirement is maintained.

Advantages:

  • Use for conventional, non-weldable polymer combinations
  • Thin-walled polymer parts without affecting the opposite surface
  • Very short cycle times

FibreMMix™

Fixing in and around lightweight fibre material

Application:

Fast and reliable connection concept for fibre components and textile structures

Advantages:

  • Very fast cycle times
  • High strength due to intensive integration in the fibre matrix
  • Simple and more complex 3-D geometries (due to direction of motion of the fastening element only being in the z-direction)
  • Ideal integration into textile structures possible


Reliable fastening of different materials using an ultrasonic process

Above all in lightweight structural engineering, innovative fastening solutions which offer the highest degree of reliability and efficiency are in great demand. Through the introduction of ultrasonic energy to fixing and fastening solutions, joining of element is accomplished safely and in many cases without much preparation. Ideally, the connecting element should become part of the carrier material.

The MM-W™ technology originated from the WoodWelding® technology, which has been in use for years not only in woodworking but also in surgery.

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