Каталог Sumitomo монолитные фрезы - страница 16

Ballnose Type Recommended Milling Examples

Radius Milling Profiling Millimg Pocket Millimg

Application

Roughing Finishing Roughing Finishing Roughing Finishing

G G G G G G

Ballnose Type

• Diameter φφφ 32 0.4 to 250.4 to 250.4 to 25ｍｍｍｍｍｍ φ 2

ｍｍ

20 I102 ° 12 30 6 3

Improved Thermal Resistance and Wear Resistance Coating Helix Angle

New coating combined with a fine-grained carbide substrate exhibit better thermal and wear resistance.

• Application Range 70

MOLD FINISH MASTERMOLD FINISH MASTERMOLD FINISH MASTER (HRC (CBN Ballnose) (CBN Ballnose) (CBN Ballnose) 60 GS MILLGS MILLGS MILL HARD Ball HARD Ball HARD Ball

50

MILLMILLMILL

BallBallBall 40 GS MILLGS MILLGS MILL BallBallBall

Small Large Chip Removal Rate Q (cc/min)

I Reduced Cutting Force Improved Chip Evacuation

Large helix angle on cutting edge reduces cutting resistance. Unique pocket design and expanded pocket area promotes better chip evacuation.

Square 2 Flutes 3 Flutes 4 Flutes 6 Flutes 8 Flutes

Radius Large Helix Angle Original Pocket Shape

• Application Examples

Ballnose DLC

Flank Wear GSX Ball (Cutting Length 140 m) Conventional Tool (Cutting Length 80 m)

SUMIDIA 0.05 Coat GSXMILL Ball Comp. A

Long

CBN Able to continue Unable to continue

PCD 0.02 MILL BallMILL Ball 0.01 Chipping at the center,

Work Material: SKD61 (50HRC) large flank wear Tool Dimensions: R3 (2 Flutes) 0.00 Cutting Conditions: =179m/min( =9,500min-1), =2,250mm/min( =0.12mm/t)

60 80 100 120 140 c f z

p=0.2 to 1.0mm, =0.3mm, Wetf Cutting Length (m) Equipment: Vertical Machining Center BT40