Electrolamination Stamping

As the output of components decreases and their variety increases, laser-based production technologies are ideal for producing prototypes or small to medium quantities quickly and cost-effectively in a tool-free process.

The solid-state and dual-head laser systems machine electrolaminations with thicknesses from 0.1 to 1.0 mm with an accuracy of a few hundredths of a millimeter.

At Feintool, we stamp sheets of any shape and size for large quantities through follow-die cutting, as well as producing in single notches, and stack almost any desired length of iron.

The high-speed blanking presses have a stamping force of 25 to 1 000 tons, and with roughly 10 000 differently shaped individual notching punches, even unique customer requirements can be produced cost-effectively and flexibly.

Motor efficiency and performance not only play a critical role in e-mobility but also in any type of electric motor application. These include such factors as energy efficiency, stability of the stacks, as well as their seal with respect to the cooling liquid. Choosing the ideal stacking process for each application is critical.

• In-tool lamination core stacking
• Interlocking
• Riveting
• Baking with bonding varnish
• Annealing
• TIG and MIG welding
• Laser welding
• Gluing (glulock®, glulock HT, glulock MD)

We help you choose the right options and consult with you on your designs and optimization potential.

Using our patented glulock® technology, rotor and stator laminations can already be joined during the punching operation by means of adhesive dots. The proven adhesive stacking method is extremely precise and eliminates the need for electrically disturbing fastening elements, thus reducing eddy currents and minimizing magnetic resistance. The result is a much more efficient stack with fewer electrical losses, which has a particularly positive effect in high-frequency ranges.

glulock MD (Multiple Dots) facilitates an additional step that increases the strength within the pack structure. With this technology, the adhesive can also be applied on the web or the cover. Thanks to an optimized control system, the glue is applied more precisely and consistently, so bonding is almost completely flat.

Die-casting
We manufacture rotors for asynchronous motors in pure aluminum, aluminum alloy, and copper die-casting.

Baking
In addition to the stacking processes of in-tool lamination core stacking and gluing using glulock®, we also offer state-of-the-art solutions for baking sheet metal stacks. Our portfolio includes hot-air systems, systems using heated pressure pads, and inductive processes. We use all the common types of bonding varnish in various grades and coatings available on the market