Technical Info

General data

HOME > Technical Info > General data

Recommend condition for Carbide Reamer

Recommend condition for Carbide Reamer

Workpiece Diameter (mm) Cutting condition
Quality of material Tensile strength
(Kg/mm2) /
Hardness (HB)		 V (m/min) f (mm/rev)
Carbon steel ~ 100 ~10
10~25
25~40		 8 ~ 12 0.15 ~ 0.25
0.20 ~ 0.40
0.30 ~ 0.50
100 ~ 140 ~10
10~25
25~40		 6 ~ 10 0.12 ~ 0.20
0.15 ~ 0.30
0.20 ~ 0.40
Cast steel 40 ~ 50 ~10
10~25
25~40		 8 ~ 12 0.15 ~ 0.25
0.20 ~ 0.40
0.30 ~ 0.50
50 ~ 70 ~10
10~25
25~40		 6 ~ 10 0.12 ~ 0.20
0.15 ~ 0.30
0.20 ~ 0.40
Cast iron ~ 200 ~10
10~25
25~40		 8 ~ 15 0.20 ~ 0.30
0.30 ~ 0.50
0.40 ~ 0.70
200 ~ ~10
10~25
25~40		 6 ~ 12 0.15 ~ 0.25
0.20 ~ 0.40
0.30 ~ 0.50
Aluminum alloy   ~10 15 ~ 25 0.20 ~ 0.30
0.30 ~ 0.50
0.40 ~ 0.70
  10~25
25~40		 20 ~30

Effect on chamfer

Effect on chamfer

Shape Feature
If Feed stopped on Sharpe edge of flute, it make mark on machine surface.
The work surface of R is good, but the work surface of R is difficult, and vice versa.
It is called a double-edged shape. The chip can be created in two layers and produce good results, but it is difficult to regrinding.
1 to 2 in the information section of the cutting edge, the cutting edge is long and Tool life is limited.
A good effect can be obtained from finish machining.
The second-tier guidebook is 10 to 20。 It is economical because the Cutting Flute is relatively short and has a long distance.
Used for finish machining and applied to hand reamer.

Effect on Helix

Effect on Helix

Helix direction Feature
Straight angle(Helix angle 0°) ㆍNormally surface is rough without cast iron.
The right Helix angle flute ㆍGood machinability and good chip emission.
ㆍThere is a wide area of application of workpiece.
ㆍExcellent in high hardness workpiece.
The left Helix angle flute ㆍSurface roughness is good for aluminum, copper, and copper alloy.
ㆍEffective to workpieces of light material.

Trouble Shooting

Trouble Shooting

Trouble issue Cause Solution
Big hole Maximize effect on burnishing
  • Reduce chamfer angle.
  • Enlarge on Margin width.
  • Reduce Back Taper.
  • Grind to chamfer in second.
  • Check the proper diameter of the reamer.
Hold down the occur Built-up edge.
  • Enlarge on Margin width.
  • Grind to chamfer in second.
  • Change the heat treatment conditions and organization of workpiece.
  • Increase cutting speed and reduce feed.
  • Supply with cutting oil sufficiently.
Reduces the imbalance in cutting force.
  • Make sure that the cutting edge is within 0.005mm.
  • Increase the cutting speed.
  • Reduce the deviation between the main shaft and the basic diameter.
  • Check to wear condition for bush and replace.
  • Replace water-soluble cutting oil to non-soluble cutting oil.
Small hole Reduce the finish effect
  • Increase the cutting edge clearance angle.
  • Reduce the margin width.
  • Enlarade on Back Taper.
  • Increase the cutting speed.
Roughness Reduce the Chattering.
  • Improve the strength of a machine.
  • Use to Left hand cut reamer.
  • Enlarge on Margin width.
  • Enlarge on Back Taper.
  • Reduce the cutting speed.
  • Increase the feed.
Surface roughness faulty Enlarge on Burnishing.
  • Use to Left hand cut reamer.
  • Reduce the chamfer angle.
  • Grind to chamfer in second.
Remove the fusion.
  • Increase the Rake angle.
  • Increase the cutting speed.
  • Reduce the feed.
Remove the chattering.
  • Make sure that the cutting edge is within 0.005mm.
  • Increase the cutting speed.
  • Alignment of the main shaft and the basic diameter.
  • Replace water-soluble cutting oil to non-soluble cutting oil.
Remove chip interference.
  • Replace the Flute type.
  • Increase the depth for Flute.