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.

Machining requirements and features of different housing types


加工定子壳体的基本操作步骤 

根据余量情况、机床加工区和夹紧要求,对加工流程和刀具进行个性化的单独设计。在此基础上,使得作用于部件上的切削力得以保持到尽可能的小。定子孔的加工分为三个步骤:预加工、半精加工和精加工。 

Basic procedure for machining of stator housings
Stator housing external machining

定子壳体的外部加工

电机定子壳体的外部加工是一项艰巨的高要求加工任务。这些壳体对于电机的效率具有至关重要的作用,通常采用管状或罐形设计。在该加工工艺流程中,必须克服一系列的难度挑战。薄壁型铝制壳体上带有用于冷却循环散热的集成加强筋,基于该类别工件在直径精度、形位公差上的要求,对应的加工要求需要达到极高的精度。保证各种不同直径之间的同心度在加工中具有非常重要的意义。 

准备工作
  • Helixfräser mit ISO-Wendeschneidplatten

    螺旋线铣刀带有 ISO标准可回转切削刀片

    预加工外径和表面 

    • 带涂层的ISO标准-可转位切削刀片由硬质合金或者镶嵌PCD的切削刀片制成 
    • 减小的切削力 
    • 标准产品 
    • HSK刀柄扩展,适用于不同的加工深度 

  • ISO BORING TOOL Roughing of outer diameter

    ISO标准镗刀

    预加工外直径 

    • 混合钟型刀具用于 
    • 外圆加工 
    • ISO可转位刀片 

  • MILLING CUTTER WITH ISO INDEXABLE INSERTS

    铣刀带有ISO标准可回转切削刀片

    粗加工密封槽 

    • 有涂层硬质合金 ISO-可转为刀片 
    • 减振器作为选配 
    • 密封槽的高效粗加工 

精加工
  • PCD MILLING CUTTER WITH SPECIAL CONTOUR

    Fresa in PCD con contorno speciale

    Finitura della scanalatura di tenuta 

    • Taglienti di profilatura in PCD 
    • Geometria perfetta dei singoli contorni di gola 
    • Come optional con sistema antivibrante 
    • Lavorazione di precisione di tutte le gole in un unico taglio 

  • PCD MILLING CUTTER WITH SPECIAL CONTOUR Finishing the sealing groove

    Bareno di precisione in struttura leggera

    Finitura diametro esterno 

    • Taglienti in PCD regolabili 
    • Corpo base utensile con struttura leggera 
    • Diametro di lavorazione fino a Ø 260 mm 


Soluzioni di asportazione truciolo per…

MAPAL Basic, Performance, Expert Line

Further machining solutions

  • Bearing and position bores

    With maximum concentricity and roundness

    read more
  • Außenreibahle mit EA-System

    External machining bearing bore

    External reamer with EA system

    • External machining of the bearing bore

  • Planfräser mit PKD-Fräseinsätzen

    Face milling cutter with PCD milling inserts

    • Creation of defined surface profiles for sealing and contact surfaces (e.g. cross-cut structures)
    • Surface finish Rz < 1


Altri componenti elettrificati