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Mandrel

mandrelA mandrel is a bar, shaft or spindle around which other components are arranged or assembled.

The term has been extended in oil and gas well terminology to include specialized tubular components that are key parts of an assembly or system, such as gas-lift mandrel or packer mandrel.

 

 

Facts and component characteristics

Typical material
  • Super 13Cr – a low carbon martensitic steel with high corrosion resistance
Typical properties
  • Outer diameter ≈ 100 mm (4 inch)
  • Inner diameter ≈ 75 mm (3 inch)
  • Length ≈ 480 mm (19 inch)
  • Max 28 HRc

 

Machine tool types

Typical machines used
  • Multi-task machines
mandrel

Selected component operations/features

  1. External turning
  2. Internal turning
  3. Internal thread
  4. External groove
 

External turning – main challanges

  • Keeping productivity high

 

Machining solution – external turning

Roughing and finishing with grade GC4325
Support:
  • Steady rest or tailstock
Products:
 

Customer values

External turning
  • High productivity thanks to the long and predictable tool life of GC4325
  • Secure process with good chip control thanks to cutting head with CoroTurn® HP nozzle technology
 

Internal turning – main challanges

  • Machining with long overhang
  • Keeping productivity high

 

Machining solution – internal turning

Roughing and finishing with grade GC4325 and Silent Tools™
Support:
  • Steady rest or tailstock
Products:
 

Customer values

Internal turning
  • Vibration- and trouble-free machining with long overhang
  • High productivity – major time savings with Silent Tools™
  • Long and predictable tool life with GC4325
  • Secure process with good chip control thanks to cutting head with CoroTurn® HP nozzle technology
 

Internal threading – main challanges

  • Process security by reducing vibration
 

Machining solution – internal threading

CoroThread® 266, grade GC1135 and Silent Tools™
Support:
  • Steady rest
Products:
 

Customer values

Internal threading
  • High-quality threads
    • Vibration- and trouble-free machining with Silent Tools™
    • Long and predictable tool life
    • Process security
 

External grooving – main challanges

  • Process security

 

Machining solution – external grooving

External grooving with grade GC4325
Support:
  • Steady rest
Products:

 

Finishing grooving with CoroCut 1-2
Support:
  • Tailstock
Products:

Customer values

External grooving
  • Great stability for high process security and good surface finish
 

 

​Customer Values

Internal turning
  • Vibration- and trouble-free machining with long overhang
  • High productivity – major time savings with Silent Tools™
  • Long and predictable tool life with GC4325
  • Secure process with good chip control thanks to cutting head with CoroTurn® HP nozzle technology
 

 

External turning
  • High productivity thanks to the long and predictable tool life of GC4325
  • Secure process with good chip control thanks to cutting head with CoroTurn® HP nozzle technology
External grooving
  • Great stability for high process security and good surface finish

 

 

 

Internal threading
  • High-quality threads
    • Vibration- and trouble-free machining with Silent Tools™
    • Long and predictable tool life
    • Process security
 
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