State-of-the-art Laser Plastic Welding

A clear View - without Glass!
Thanks to the LPKF
Dual Clamping Device

Dual Clamping Device: No more glass cleaning

Advanced Laser-Welding

Maximum system availability – This is one of the core arguments for using LPKF's patented DCD tool technology. The worldwide unique internal and external metal clamping system enables a symmetrical clamping pressure distribution for deformation-free welding results. Market-leading technology!

The Reliable Way to Replace Glass

The LPKF Dual Clamping Device (DCD) is easy to install. The design with the slim, but robust retaining bars can remain in use for thousands of application cycles and ensures consistently high welding quality.

The Latest State of the Art – Tried and Tested Hundreds of Times: The LPKF Dual Clamping Device.

Contamination and material wear are not an issue for the DCD; neither is disassembly for cleaning or replacement of the tool. This is proven by many years of experience with the tool, which has been tried and tested in series production. The robust LPKF clamping system is wear-free and durable even in 24/7 operation. It replaces the conventional glass molds, which entail additional expenditures due to their technology-inherent disadvantages, especially in handling and spare parts requirements. With its sophisticated design, the LPKF DCD ensures optimal welding results.

DCD for LPKF Laser Plastic Welding Systems

  • No production interruptions for cleaning or replacement
  • No tool handling
  • Durable: no material wear, no glass breakage
  • Short delivery times
  • Made in Germany
  • For 24/7 use
  • Protection against gradual loss of component quality

The premise of laser plastic welding is to join plastic components with particularly low effort and to achieve optimum weld seams. LPKF supports this goal with sophisticated technology down to the last detail. For LPKF InlineWeld and LPKF PowerWeld systems. See for yourself the advantages of DCD clamping technology!

The Technology Behind It All: Laser Plastic Welding

In the laser transmission welding process, the upper material, which is transparent for the laser wavelength, is combined with a laser-absorbing lower component. The laser beam is focused through the upper joining partner on the absorbing lower joining partner. The lower joining partner melts down to the near-surface region. Through heat conduction, the upper joining partner also melts locally in the region of the weld seam. After cooling, a positive substance joint results – with the same strength as the material itself.

Clamping pressure is required for the heat transfer from the lower to the upper joining partner. Reproducible and production-oriented surface pressure is indispensable for optimum weld seam quality. Stress and deformation states during welding must be able to regress without hindrance.

The conventionally used glass clamping technology makes this possible but poses a contamination risk. Impurities in the form of dust or smoke can be deposited on the glass in the beam path. If the laser beam hits impurities, it can destroy the clamping element. The glass tools must therefore be regularly dismantled and cleaned or even replaced due to glass breakage. This results in production interruptions and increased handling costs. LPKF's patented dual clamping device clamping technology (DCD) is a solution to this problem. The tool is durable, wear-free and does not require cleaning. Due to its special construction, the weld seam is perfectly formed all around.

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