Electrified drives

Automobile manufacturers and suppliers are facing new challenges when it comes to components for electric motors. The example of the housing of an electric motor shows how big these challenges are: Compared to a transmission housing, this has to be manufactured within significantly tighter tolerances, since the accuracy has a decisive influence on the efficiency of the motor.

In addition, due to the special structure, such as integrated cooling channels, the electric motor housing is usually significantly thinner than a transmission housing. In addition, bearing bushes made of steel materials are pressed into some of these housings. Special protection shields in the tool ensure that steel chips do not come into contact with the aluminium surfaces during processing and damage them.

さまざまなハウジングタイプの機械加工条件&特性

Basic procedure for machining of stator housings

The machining process as well as the tools are designed individually depending on the
measurement situation, machine park and clamping setup. In this way, the cutting forces
applied to the component are kept as low as possible. The machining of the stator bore is divided into 3 steps: Pre-machining, Semi-finish machining and Finish machining.
Basic procedure for machining of stator housings
Stator housing external machining

External Machining stator housing

External machining of stator housings for electric motors is a demanding task. These housings, which often come in tubular or pot-shaped designs, are crucial for the efficiency of the electric motor. Several challenges have to be overcome during the process. The thin-walled aluminium housings with integrated ribs for the cooling circuit require the highest precision in terms of diameter accuracy, shape and position tolerances. The concentricity between different diameters is of huge importance.

Pre-machining
  • Helixfräser mit ISO-Wendeschneidplatten

    Helix milling cutter with ISO indexable inserts

    Pré-usinagem diâmetro externo e superfície 

    • Pastilhas intercambiáveis ISO revestidas de metal duro com cobertura ou pastilhas de corte com tip de PCD 
    • Forças de corte reduzidas 
    • Produto standard 
    • Extensões de HSK para diversas profundidades de usinagem 

  • ISO BORING TOOL Roughing of outer diameter

    Ferramenta para mandrilamento ISO

    Pré-usinagem Diâmetro externo 

    • Ferramenta de sino de múltiplos estágios para 
    • usinagem externa 
    • Pastilhas de corte ISO 

  • MILLING CUTTER WITH ISO INDEXABLE INSERTS

    Fresa com pastilhas intercambiáveis ISO

    Desbaste do canal de vedação 

    • Pastilhas intercambiáveis ISO revestidas de metal duro 
    • Amortecimento de vibrações opcional 
    • Desbaste efetivo dos canais de vedação 

Usinagem de acabamento
  • PCD MILLING CUTTER WITH SPECIAL CONTOUR

    Fresa de PCD com contorno especial

    Acabamento Canal de vedação 

    • Corte de perfil PCD 
    • Geometria perfeita dos contornos individuais dos canais 
    • Amortecimento de vibrações opcional 
    • Usinagem de acabamento de todos os canais em um corte 

  • PCD MILLING CUTTER WITH SPECIAL CONTOUR Finishing the sealing groove

    轻型精密镗刀

    外径精加工 

    • 可调节的PCD切削刃 
    • 轻型刀具基体 
    • 加工直径最大 Ø 260 mm 

切削加工解决方案用于...

MAPAL Basic, Performance, Expert Line

その他の加工ソリューション

  • Topfförmiges Elektromotorengehäuse in CAD Darstellung

    ベアリング穴とポジション穴

    最高の同芯度と真円度

    詳細はこちら
  • Außenreibahle mit EA-System

    EAシステム付き 外径リーマ

    • ベアリング穴の外径加工

  • Planfräser mit PKD-Fräseinsätzen

    PCDミーリングカートリッジ付き フェースミーリングカッター

    • シール面とベアリング合わせ面を設定プロファイルで加工 (例:クロスカット造)
    • 面粗度 Rz < 1

その他の電化製品