Electrical steel laminations

Electrical steel laminations are constituent parts of every electric motor. They are produced in a rapid-stamping process by forming electrical steel with a thickness of between 0.25 and 1 mm. We produce rotor and stator laminations and assembled stator and rotor stacks.

Hidria Lamtec

To produce the laminations, we need rapid-stamping tools that we design, produce and assemble ourselves. They allow us to achieve the precise geometrical accuracy of final products.

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Technologies

We produce the laminations made of electrical steel for orders of large batches with rapid stamping, in which we use the latest technologies and modern trends in this industry. For some projects, to produce test samples and smaller batches of laminations in the optimal way, we also use the single notching technology and laser cutting.

Areas of product application

Electrical steel laminations are used in various segments of the automotive industry. For example, for drive motors for electric and hybrid vehicles. They are used in steering mechanisms of vehicles, their pumps, heating, cooling and air conditioning systems.

Tools

Our own development, construction, production and assembly of rapid-stamping tools ensure high quality and reduce the time from the first enquiry to the making of products in large batches. The Tool Components Competence Centre is equipped with state-of-the-art technologies and machines to process materials, and supports the business unit’s successful growth with the know-how and innovativeness of the Centre’s top experts.

Products

Laminations

Electrical steel laminations are parts of rotor or stator stacks that are a component of any electric motor. We produce laminations by stamping electrical steel on high tonnage rapid stamping presses.

Technologies

We produce laminations made of electrical steel for orders of large batches with rapid stamping, in which we use the latest technologies and modern trends in this industry. For some projects, to produce test samples and smaller batches of laminations in the optimal way, we use also the single notching technology and laser cutting.

Areas of product application

Electrical steel laminations are used in various segments of the automotive industry. They are used in the steering mechanisms of vehicles, their pumps, heating, cooling and air conditioning systems and electric motors of hybrid and electric vehicles.

Stator and rotor stacks

We use rapid-stamping tools of our own construction and production and specialised presses to produce assembled lamination stacks too, in addition to individual laminations. The process automation that also includes the pressing and measuring devices and product packaging ensures the high reliability, stability and quality of processes.

Technologies

By means of rapid-stamping tools, the individual laminations are joined into stator and rotor stacks already in the stamping process by means of the technology of interlocking clamps that is integrated into the tool itself. In addition to the production of laminations and stacks, we offer the annealing process. Processes such as riveting, laser welding or gluing are used to assemble the stacks too.

Areas of product application

Electrical steel stacks are used in various segments of the automotive industry. They are used in the steering mechanisms of vehicles, their pumps, heating, cooling and air conditioning systems and in hybrid and electric vehicles.

Rotors

Die-cast rotors are an integral part of high-performance asynchronous electric motors, without which there would be no modern life. We produce them with high pressure die casting where the rotor stacks are filled with aluminium alloys. In the die-casting process, most attention is paid to the control and quality of the input materials, the repeatability of the process parameters and the temperature control of the moulds. This ensures high-quality die casting and minimal porosity.

We use the technology of high-pressure die casting with aluminium alloys to produce die-cast rotors. Technically pure aluminium with good electrical conductivity is generally used in this process.

We use the vertical and horizontal rotor die casting technology, with this allowing us to easily adapt to clients’ various requirements and achieve high productivity. We perform other technological processes too, for example, the embedding of shafts on a rotor and the robotic CNC-machining of rotors and rotors with shafts.

Areas of product application

Die-cast rotors are used in various segments of the automotive industry.