LATHELAND® Chip-Breaker End Mill 2×D, Weldon, 5 Flutes

In stock
SKU: LL-CB5-4
Regular price £54.66 GBP

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5-flute end mill with chip breakers, for productive roughing and slotting in stainless steels, titanium and high-temperature alloys. Cutting length 2×D.

Specifications

Material Solid carbide
Coating AlCrN (hardness 3,200 HV, oxidation resistance up to 1,100 °C)
Flutes 5
Helix angle 35°/36°/37°
Shank tolerance h6, Weldon flat
Workpiece hardness below 35 HRC
Sizes available 7

Features

  • Chip breakers for short, controlled chips
  • Differential helix (35°/36°/37°) to suppress vibration
  • Recessed neck and Weldon flat shank
  • For workpieces below 35 HRC

Size table (all dimensions in mm)

SKU Ø D R l1 cutting l2 recess L overall d2 shank
LL-CB5-4 4 0.1 10 15 57 6
LL-CB5-6 6 0.1 15 20 57 6
LL-CB5-8 8 0.15 20 25 64 8
LL-CB5-10 10 0.2 25 30 72 10
LL-CB5-12 12 0.2 30 38 83 12
LL-CB5-16 16 0.3 39 44 92 16
LL-CB5-20 20 0.3 48 54 104 20

Recommended cutting data

Starting values for stable conditions with good coolant supply. Adjust for your machine, set-up and workholding. For diameters between the listed values, interpolate between the neighbouring rows.
Spindle speed n = Vc × 1000 / (π × D)  ·  Feed rate vf = n × fz × z (drills: vf = n × fn).

Side milling
Workpiece material Carbon Steel Alloy Steel
520 < Rm < 1200
Stainless Steel
high machinability
Grey Cast Iron Titanium Alloy
Ap – depth of cut 1.00 × D 1.00 × D 1.00 × D 1.00 × D 1.00 × D
Ae – width of cut 0.25 × D 0.20 × D 0.18 × D 0.25 × D 0.15 × D
Vc (m/min) 295 240 135 265 90
Ø D (mm) fz (mm/tooth)
4 0.017 0.018 0.017 0.017 0.022
5 0.022 0.024 0.022 0.021 0.028
6 0.027 0.029 0.027 0.026 0.034
8 0.037 0.040 0.037 0.036 0.047
10 0.047 0.052 0.047 0.047 0.060
12 0.057 0.065 0.057 0.057 0.074
16 0.073 0.082 0.072 0.074 0.093
20 0.089 0.097 0.085 0.085 0.111
Trochoidal milling
Workpiece material Carbon Steel Alloy Steel
520 < Rm < 1200
Stainless Steel
high machinability
Grey Cast Iron Titanium Alloy
Max. slot width 1.25 × D 1.25 × D 1.25 × D 1.25 × D 1.25 × D
Ap – depth of cut 1.50 × D 1.50 × D 1.50 × D 1.50 × D 1.50 × D
Ae – width of cut 0.15 × D 0.12 × D 0.10 × D 0.15 × D 0.10 × D
Vc (m/min) 345 290 170 315 120
Ø D (mm) fz (mm/tooth)
4 0.018 0.020 0.019 0.018 0.028
5 0.024 0.028 0.026 0.024 0.036
6 0.032 0.037 0.035 0.031 0.045
8 0.044 0.052 0.048 0.044 0.063
10 0.059 0.071 0.064 0.059 0.082
12 0.075 0.094 0.084 0.076 0.108
16 0.094 0.116 0.104 0.094 0.133
20 0.107 0.131 0.117 0.109 0.157

LATHELAND®