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Industries and Solutions

Stator Housing

Tooling Solutions for Stator Housing

In recent years, the domestic new energy vehicle (NEV) industry has developed rapidly. Whether it is pure electric vehicles, range-extended vehicles, or hybrid vehicles, all these models rely (either fully or partially) on converting electrical energy into mechanical energy to drive the wheels. As a critical component in this energy conversion process, the motor has garnered significant attention, particularly its motor housing. The machining processes and precision required for motor housings have been a key focus for tool manufacturers.

We showcase a case study involving Worldia’s meticulously designed and developed PCD (Polycrystalline Diamond) composite fine boring tool, used for machining the stator bore of motor housings.

Stator Housing3

Machining Case

  • Precision boring of the stator bore, diameter Ø180 / Ø210.
  • Geometric tolerance requirements:
    • Bore diameter tolerance: 0.04
    • Roundness: 0.04
    • Perpendicularity: 0.05
    • Directional tolerance: 0.03
    • Positional tolerance: 0.05

Tooling Solutions

  • Micro-composite precision boring tools, with special aluminum alloy tool bodies and lightweight structural designs to reduce weight;
  • Equipped with precise chip-breaking grooves to meet surface finish requirements and extend tool life.

Processing Parameters

  • Cutting speed (Vc): 500–800 m/min
  • Feed per tooth (Fz): 0.05–0.1 mm/Z
  • Number of teeth (Z): 4

(Data source: Test report on PCD composite precision boring tools by Beijing Worldia Diamond Tools Co., Ltd.)

Stator Housing2
Stator Housing1

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