Energy supply housing

Different housings are used to protect electronic components, such as battery systems or power electronics, from external environmental influences and to attach the components to the interior in order to ensure that they function properly during vehicle operation. The requirements for the housing depend on the electronic system and drive concept. Different materials and manufacturing processes are currently used.

FEATURES

• Unstable, thin-walled components (susceptible to vibration)
• Construction as a cast tub or as a frame construction made of hollow profiles
• Partly low-silicon aluminium
• Large area (2 x 3 m)
• Mainly drilling and milling operations and threading
• Accuracy and surface requirements for cable bushing and cooling
  connections

Extruded profile

Extruded profile

Due to the increasing size of the battery, modular concepts for different performance classes and ranges are used. For this reason, extruded aluminium profiles are welded to form a housing.

MACHINING REQUIREMENTS

• Thin material with several layers
• Drilling: Vibrations and burr formation. Ring formation on the tool → Helix milling/orbital drilling prevents burrs and rings
• Milling: Thin material tends to vibrate → Fewer vibrations through optimised
  cutting edge geometry

Die-cast housing

Carcaça fundida

As carcaças fundidas de alumínio são usadas principalmente para acomodar potência eletrônica ou bateria com menor sistemas para veículos híbridos. As estruturas complexas das carcaças são desenvolvidas com canais de refrigeração integrados.

EXIGÊNCIAS DA USINAGEM

• Fresamento de superfícies vedantes (exigências de superfície parcialmente especial)
• Fresamento de superfícies de admissão para sistema eletrônico e células de bateria em caso de maior alcance da ferramenta
• Furação dos furos principais (> 50 furos por peça)

Visão geral das ferramentas