BIG DAISHOWA High Performance Tooling Solutions Vol 3

CHAMFER MILLS

C-CENTERING CUTTER A multifunction cutter capable of both spot drilling and chamfering.

COOLANT

THROUGH

Hole Chamfering

Centering & Chamfering Chamfering

L

L 1

H Min

H

Chamfering Angle θ 1

Chamfering Angle θ 2

Catalog Number

ØC Min

ØC Max

H Min

ØD 1

ØD L

L 1

Insert

ØC

ST8-CN0209-45-65 ST12-CN0213-45-90 ST20-CN0220-45-110 ST10-CN0211-30-70 ST16-CN0216-30-90 ST20-CN0225-30-110

8mm .393 2.56 .590 .079 .354 .024 CN0406 12mm .551 3.54 .787 .079 .512 .024 CN0606 20mm .866 4.33 1.181 .079 .787 .012 CN0906 10mm .512 2.76 .590 .079 .433 .016 CN0406 16mm .669 3.54 .787 .079 .630 .016 CN0606 20mm 1.063 4.33 1.181 .079 .984 .016 CN0906

90º

45º

90 Degree H = (C-Cmin)/2 + Hmin 120 Degree H = (C-Cmin)/3.46 + Hmin

120º

30º

• Wrench and screw is included; inserts must be ordered separately • As the insert has a nose radius, spot drilled tip is not acute • Use with hand feed is not recommended

INSERTS FOR C-CENTERING CUTTER

Insert Grade

Catalog Number

Screw Set Catalog Number

ØD

ACM250F (For Steel/Cast Iron/Stainless Steel)

DS20 (For Aluminum)

ACZ150 (For Steel/Cast Iron/Stainless Steel)

CN0406 CN0606 CN0906

.187 .250 .375

S2TS-6IP S2.5S-8IP S4S-15IP

z

z

z

z

z

z

z

z

z

• Inserts are available in a packet of 10 pcs.; please specify the insert model number and grade when ordering Example: CN0906 ACM250F.........10 pcs. • The insert clamping screw set contains 10 screws and 1 wrench • Insert clamping screws and tightening wrench are consumables; order periodically for replacement or spares.

RECOMMENDED CUTTING CONDITION

• The table is just a reference to determine cutting conditions, it should be adjusted according to the condition of the machine tool and workpiece • Be sure to use water-soluble cutting fluid during spot drilling • For traverse chamfering, dry cutting (including air blowing) is recommended; however, if severe built-up edge occurs in aluminum machining, use water-soluble cutting fluid

Feed (IPT) Spot Drilling Traverse Chamfering

Cutting Speed Vc (SFM)

Workpiece Material

Carbon Steel, Alloy Steel

165-500 165-400 230-650 330-1000

.001-.003 .001-.002

Stainless Steel

.002-.008

Cast Iron

.001-.003

Aluminium, Non-ferrous Metals

627

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