Rotary vane vacuum pump housing

Pump Housing EN-GJL-250

Initial situation at the customer

Stator bore, Rotary vane vacuum pump

  • Marked growth in demand and the associated requirement for optimised output with a simultaneous increase in process reliability
  • High degree of manufacturing effort when machining the stator bore due to pre-milling and finish-boring

Special features of this solution

  • Short cycle times and the highest degree of economic efficiency thanks to multi-blade tool solutions
  • EA system enables easy handling in the series production process
  • Reduced frequency of tool configuration for the fine boring tool due to the long tool life of the CBN cutting material
  • Low cutting material costs thanks to a solution with indexable inserts
  • Repeated usage for different casting materials easy to implement

Stator bore

  • Stator bore, roughing

    Roughing

    Drilling tool

    • Tangential boring tool with indexable inserts and cartridges for optimal pre-machining thanks to consistent stock removal
    • The use of pressed tangential indexable inserts ensure low cutting material costs

  • Stator bore, finishing

    Finishing

    Fine boring tool 

    • Multi-stepped fine boring technology offers the highest degree of quality when machining interrupted cuts
    • Low cutting material costs for series production processes thanks to HX indexable inserts

Stator bore Machining time per bore

Advantages

  • MAPAL tool solution provides process optimisation by means of cycle time reductions
  • Significantly increased output and reliable machining of the pump housing
  • Setting part no longer required due to omission of spindle system

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