Community Research and Development Information Service - CORDIS

Laser cutting machine incorporating high damping LDS structures

The results consist of the design and manufacturing of a high performance laser cutting machine, using advanced light damped structures (LDS).The machine will be designed to work on:
- the round, rectangular or variable tubular element section with a curvilinear and unplanar axis manufactured in a plastic deformation process;
- dishing elements;
- overt rod section elements.

As tubular profile used as structural elements are assuming a more complex form to simplify their assembly in a subsequent mounting phase, the possibility of carrying out effective and cheap laser cutting work after the plastic deformation process (bending) is the main innovative aspect in curvilinear tubular manufacturing.

On the basis of the above consideration Adige-Sala, is developing a new flexible CNC 5 axis laser cutting machining centre for 3D pipe cutting after the bending process. The principal aims are:
- An operative cost reduction
- Noise emission reduction;
- Machine operator risk reduction;

Adige-Sala furthermore intends to further increase performances of its present 5-axis CNC machine in order to reduce the cycle time of the cutting process and increase, at the same time, accuracy and product quality.

Therefore, a 5-axis laser cutting machine has been redesigned within the framework of the VINO project, making use of innovative material solution and different drive systems for the linear axis.

Key data achieved for the VINO Laser cutting Demonstrator is summarised below.
Axis strokes:
X = 2000 mm;
Y = 600 mm;
Z = 500 mm;
Speed: X, Y = 120 m/min;
Z = 60 m/min;
X= 13 m/s2 (up to 18 m/s2 for LDS version)
Y= 13 m/s2 (expected, but not tested)
Z= 5 m/s2
X Column: New light damped material
Y Slide: Light Tube cage
Z Ram: New light damped material
Drive system:
X Column: Linear motor
Y Slide: Linear motor (not mounted on the demonstrator)
Z Ram: Ball-screw

The final demonstrator with a bonded ram and column and moving X and Z axes has been finalised and tested. The LDS structure has the right strength to support all efforts, but can still be improved in terms of stiffness and in industrialisation in order to reduce the number of primary parts involved. An energy saving was detected, but we did not note any improvement in noise emissions.

We are confident that with a new design of the column (which also involves a new design of the main body of the machine), the right stiffness of all elements can be reached. This was impossible within the framework of the project because an existing part would have had to be substituted (with little or no changes in the body of the machine).

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38056 LEVICO T. (TN)
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