Welding

WELDING – smart joining

Whether producing assembled plastic components of several parts of one material or of hybrids, it's all about joining.

We possess the knowledge and the special equipment about different plastic welding technologies. Our focus is providing an independent consultation to choose the suitable welding technology for your issue and requirements.

We are your competent partner for weldability studies, optimisations of technologies with failure considerations, testing of mechanical and morphological properties of welded samples as well as the development of new welding technologies.

  1. Ultrasonic welding

    • Development and design of sonotrodes and holding fixtures
    • Individual development of a welding technology
    • Optimisation of technologies
    • Weldability studies
    • Design of moulded parts with the focus on the welded joint
    • Pilot and small series
  2. Heating element welding

    • Individual development of a welding technology
    • Optimisation of technologies
    • Weldability studies
    • Design of moulded parts with the focus on the welded joint
    • Development and design of holding fixtures
  3. Infrared welding

    • Individual development of a welding technology
    • Optimisation of technologies
    • Weldability studies
    • Design of moulded parts with the focus on the welded joint
    • Development and design of holding fixtures
  4. Rotations and vibration welding

    • Individual development of a welding technology
    • Optimisation of technologies
    • Weldability studies
    • Design of moulded parts with the focus on the welded joint
  5. Special welding technologies

    • Heating element welding with ultrasonic support
    • Micro riveting and micro flanging with ultrasonic support
    • Ultrasonic riveting and flanging of high-performance plastics with tempered sonotrodes
    • Ultrasonic tacking of ETFE-films
    • Welding of films
    • Studies and consultations of technological application problems
    • Modification of welding machinery

DVS Testing Laboratory

For joining of plastics in the craft sector, one needs an entrance examination according to DVS-guidelines. The Kunststoff-Zentrum in Leipzig gGmbH, as a recognized training place and testing laboratory of the DVS, support you in the selection of required initial and re-examination.

  1. manual welding technologies

    • Courses according to DVS 2281, DVS 2282 und DVS 2280
    • Exams according to DVS 2212-1, section I
      o Hot gas fan welding
      o Hot gas extraction welding
      o Heating element socket welding
      o Electrofusion welding ·
    • Exams according to DVS 2212-1, section II
      o Hot gas extrusion welding
  2. Laminating

    • Courses according to DVS 2290
    • Exams according to DVS 2220
      o Laminates, laminate joints and adhesive joints of fibreglass (GRP and EP-GF)
  3. Adhesive bonding

    • Courses according to DVS 2291
    • Exams according to DVS 2221
      o Pipe-/socket-joints of PVC-U, PVC-C and ABS with resolving adhesives
  4. Quality assurance / failure assessments

    • Evaluation of plastic welding seams according to DVS-guideline 2202-1
    • Determination of kind and extend of welding defects by externals as well as internal findings
    • Determination of mechanical-technological quality values of welded and adhesive joints
    • Failure analysis of welded, adhesive and composite structures
    • Clarifying the cause of failures