Magnet sourcing and assembly focuses on automotive sector

Finding the right magnet for an electric motor, actuator or sensor can be a time-consuming process for automotive suppliers which is why Goudsmit Magnetics offers sourcing, developing and assembly services to speed up time to market.

The company is able to conduct magnetic calculations, FEM (finite element method) calculations and 3D simulations that contribute to the development of a magnet or assembly to meet all requirements. Even before the prototyping phase, it is able to  provide certainty about the correct operation, said Goudsmith Magnetics.

Magnets are used in cars for the gearbox, sensors, brakes, water pump, engines, ignition coil and start generator. They are also used in the lane departure warning system, which emits a warning beep or vibration signal when the vehicle strays off the road. In all of these applications, the quality of magnets is essential to guarantee optimal operation.

Measurements are an important part of determining the quality of a magnet. These measurements provide automotive suppliers with guarantees and are a standard part of the IATF16949 process. The [process capability] CPK value that results from these measurements, among others, is part of the statistical process control and provides data on the way in which a magnet supplier controls its process. The higher the CPK value, the better the magnet. The value indicates the statistical chance of failure of products such as motors, actuators or sensors. Moreover, since the output control of the magnet supplier is also the input control of customers, this also reduces the chance of failure of once delivered cars, machines or systems, said Goudsmit Magnetics.

Using FEM simulations, engineers and product developers have a 3D visual of how the product behaves within a magnetic system. For example, in terms of the depth of a magnetic field or magnetic flux density on another (ferromagnetic) object. This not only validates the overall performance of a component, but also shows its magnetic performance to optimise product performance. Such simulations accelerate the development and prototyping process because the shape, grade and size of a magnetic component can be quickly determined to ensure the most appropriate choice for an application.

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