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29th May 2018, Atlanta, GA

Embroidery route to preforms

At last week’s Techtextil North America exhibition in Atlanta, ZSK, of Krefeld, Germany, demonstrated its embroidery technologies for adding tailored sensors and heating elements to fabrics, and also a machine for the free orientation placing and fixing of reinforcement materials.

The latter can be used in applications where the production of components or textile structures requires the stitching of variable geometry ply stacks or where composite reinforcement fabrics need to be reinforced locally.

The system is suitable for various materials including carbon, glass and aramid fibres. © ZSK

The system is suitable for various materials including carbon, glass and aramid fibres as well as wires etc. In the process, the single layered rovings are fixed to the base material by stitching and the base material is moved by the pantograph, enabling it to lay rovings in any direction and quantity.

A major advantage of the process is to be able to lay the rovings according to the distribution of forces within a structural component with 100% reproducibility enabling:

  • Automatic perform production.
  • Low mass tolerance.
  • High dimensional accuracy.
  • Identically-matching rovings.

The cost effective process is driven by a high stitching speed. © ZSK

The cost effective process is driven by a high stitching speed and multiple working units on each machine and in comparison to other textile technologies, the expensive loss of materials is kept to a minimum.

The aerospace industry is among a number already using the ZSK in series production to apply a wide range of materials, including carbon and fibreglass rovings, as well as electrical cables, metal yarns, optical fibres and RFID antenna.

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