FrancaisDeutsch
acurea 590x160

8 recommendations for a successful reaming !

Beware: before reaming, have a look and control our "recommendations for reaming".

1. Hole oversize
astuce 01

Problems :

  • lack of coolant, edge build up on reamers
  • irregular angles
  • depth of cut too big, reaming tolerance too high
  • axial alignment between tool and hole displaced
Solutions :
  • correct alignment or use RE-AL floating holder
  • check diameter and tolerance of reamer
  • check coolant, increase pressure, consider using through coolant
2. Hole too small
astuce 02 Problems :
  • reamer is blunt
  • depth of cut is insufficient
  • workpiece springs back
Solutions :
  • exchange reamer
  • increase depth of cut
  • check coolant, increase pressure, consider using through coolant
3. Tapered hole (entrance too big)
astuce 03

Problems :

  • reamer oscillates in the axis
  • drilled hole is not centred
  • axial alignment displaced between tool and hole
  • swarf in upper part of hole
Solutions :
  • correct alignment or use RE-AL floating holder
  • ensure alignment of working tool
4. Tapered hole (end too big)
astuce 04 Problems :
  • axial alignment displaced between tool and hole
  • swarf in lower part of hol
  • reamer is bottoming the hole
Solutions :
  • correct alignment or use RE-AL floating holder
  • ensure alignment of working tool
  • ream (deep) hole in 2 to 3 passes
5. Axial displacement
astuce 05

Problems :

  • drilled hole is out of axis
  • concentricity of lead angle is not correct

Solutions :

  • check concentricity of drilled hole
  • check concentricity of reamer axis
6. Hole is oval or convex
astuce 06 Problems :
  • workpiece moves during reaming

Solutions :

  • fix workpiece precisely/constantly
7. Bad surface quality of hole (check also 8)
astuce 07 Problems :
  • reamer or hole damaged
  • insufficient supply of coolan
  • edge build up on reamer
  • poor removal of swarf
  • axial alignment displaced between hole and tool
Solutions :
  • replace reamer
  • correct alignment or use RE-AL floating holder
  • consult recommendations of reaming
  • check coolant and increase pressure, consider using through coolaant
8. Reamer is seizing and breaking (check also 7)
astuce 08 Problems :
  • reamer land is too large
  • insufficient back taper (min. 0,015 on 100mm)
  • drilled hole too small and not centred
  • lead angle badly ground
Solutions :
  • according to material/spezial alloy adapt lead angle or land
  • correct alingment or use RE-AL floating holder
  • material dependent (soft/normal/treated) reduce or increase reaming speed
 

Adress and contact

RE-AL AG/SA
F. Oppligerstrasse 19
CH-2500 Bienne 6

T +41 (0)32 343 34 20
F +41 (0)32 343 34 24

Opening hours
Monday to Friday
07.30 – 11.45
13.30 – 17.00

 

Download

Herewith you will find some files to download, mainly in PDF, Word or Excel format :

Delivery terms RE-AL
Inquiry-form for special reamers
General catalogue (2012)
icone pdf_4 New: XL-reamers'flyer