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Application Of Laser Technology In Automobile Main Plant

Dec 29, 2017

Daimler, the world's largest commercial vehicle manufacturer, has customized two Schuler laser unwinding lines for its Kuppenheim plant to replace heavy molds. The two production lines are planned for mass production of compact vehicles and can be switched to another cutting mode with the touch of a button. The programming of the material slice contour can be completed off-line, and the production optimization simulation is carried out. Stamping plants are no longer required to use heavy tooling to accommodate the different models to be introduced in the next few years.

Daimler has customized two Schuler laser unwinding and blanking lines for the Kuppenheim plant

Three laser heads are operated in series mode, and the steel or aluminum rolls are cut continuously at a speed of more than 100 m/min, making the required contour sheet. This process is mainly used for surface sensitive parts such as Fender, side board, roof or hood. In the system, the conveyor runs at speeds up to 60 m/min. Cut off the material will be separated from the scrap, stacking. The two Schuler stamping lines of the workshop were then formed to form the chassis parts and components, which were then transported to the nearby Mercedes Benz Rastadt factory for assembly.

The two production lines will be continuously sent to the steel plate and aluminum plate cut into the outer body material, for Mercedes-Benz compact vehicle production

Cutting programming is highly flexible for different geometric shapes. This advanced vehicle factory will use this technology to achieve saving materials, optimize the forming process. The use of laser processing materials, not only to improve the future production efficiency, but also to develop a more ideal material slice profile.

A new type of blanking line without heavy tooling

The usual processing process is to use a blanking die weighing more than 25 tons to press the material sheet. The unit cost of such molds is as high as € 200,000, excluding the cost of storage, maintenance and maintenance. If the new model is introduced in the market, it will take several months to change the mold, refit or install the new mold. And the Schuler of the laser unwinding and blanking line does not need such a mold.

Both systems are programmed off-line, just touch the button, you can switch to another cutting mode

In addition, the construction standard of the Early factory roll shop is not suitable for the normal unwinding and blanking line. This new technology (dynamic streaming technology, DFT) is largely due to the fact that the laser system does not require costly foundations or pits

Cost-benefit is a major consideration for automotive OEMs: When making an investment, the investment will be compared to other options and must be able to bring positive benefits to the production of the vehicle. Laser production lines have unlimited prospects because they are easier to assemble, require no heavy tooling and have high system availability. Compared with the conventional unwinding and blanking system, the dynamic flow technology can save material and reduce the volume difference, thus reducing the production cost.