Precision takes shape

MAPAL draws from its knowledge about components and the market to deliver optimal machining solutions to the automotive industry in the field of electromobility. Global developments, trends and drivers are incorporated into its solution portfolio for focus components like the scroll compressor.

The global automotive market will continue to develop in the coming years, with the biggest growth taking place in the realm of electric vehicles. As the share of hybrid and battery-power cars increases, so does the share of vehicles with scroll compressors. This part is used to increase the pressure of the refrigerant in the thermal management system, which keeps the temperature of batteries in check, among other things. These have to be cooled in the summer and heated in the winter. The two spirals, orbit and fixed scrolls, form the heart of the component. They move eccentrically to one another so that the refrigerant is compressed between the spirals towards the centre.

MAPAL has defined the scroll compressor as a focus component in the field of electromobility: It has very high demands with respect to the machining quality and is required in large quantities. With specifications that are sometimes less than 20 µm, the form of the scroll spirals and perpendicularity have very tight tolerances. A surface finish with an average roughness depth in the single micrometre range is required for the flawless functionality of both spirals in relation to one another.

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