爪式真空泵

泵外壳体由欧标 EN-GJL-250 铸铁制造 | 
爪由 1.4021（X20Cr13）不锈钢制造 

客户的初始情况

Claw vacuum pump

  • 在以往的批量加工工艺中，由于采用非柔性化刀具解决方案而造成很高的刀具成本 
  • 在该爪的生产过程中，由于机械切削部分占比巨大，引发了大幅的成本压力 

解决方案的特性

  • Low cutting material costs thanks to a solution with indexable inserts
  • Combination tools and MAPAL fine boring technology for optimal process design and adherence to critical form and position tolerances without additional tools
  • Large standard range of solid-carbide end milling cutters offers high degree of economic efficiency for trochoidal milling of challenging workpiece materials
  • Soft-cutting tangential indexable insert requires less spindle power

Pump housing

  • Roughing

    Roughing

    Circular milling cutter 

    • Circular milling cutter with tangential indexable inserts
    • High degree of flexibility for different part variants when roughing the pump chamber bores

Claws

  • Trochoidal milling cutter

    Trochoidal milling

    OptiMill-Uni-HPC-Finish 

    • Standard solid-carbide milling cutter
    • Short machining times during trochoidal milling processes when roughing and finishing external contours

  • Trochoidal milling

    Trochoidal milling

    OptiMill-Tro-Inox

    • Standard solid-carbide milling cutter
    • Short machining times during trochoidal milling processes when roughing and finishing external contours

  • Fine boring

    Fine boring

    Fine boring tool

    • Multi-stepped fine boring tool guarantees optimal form, positioning and diameter tolerance of bearing bores

Claw tool life

Advantages

  • High degree of flexibility for many variants – six different part sizes possible with a single tool concept
  • Reduced tool costs
  • Machining process for the claws significantly reduced
  • Optimised, economical end-to-end process by MAPAL