Square Shoulder Mill Case Histories & Performance Reports

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SLOT MILLING improved 477%

Dapra Square Shoulder saved $730 on 10 parts

Material: Forging Die Steel • Hardness: 42 Rc

Competitor DAPRA
Cutting Tool 1" Square Shoulder 1" Square Shoulder
Speed 1150 RPM 2300 RPM
Feed 12 IPM (300mm) 55 IPM (1400mm)
Depth of Cut .075" (1.9mm) .100" (2.5mm)
Width of Cut 1.0" (25mm) 1.0" (25mm)
Cycle Time 13 min./part 2.2 min./part
Tool Life 30 min. 40 min.
Insert Cost $9.50 $6.40

PROFILE MILLING improved 182%

Dapra Square Shoulder saved $1,400 on 100 parts

Material: 1018 Low-Carbon Steel • 1018 / 1.1141 / S15

Competitor DAPRA
Cutting Tool 3/4" Square Shoulder 3/4" Square Shoulder
Speed 4000 RPM 6200 RPM
Feed 29 IPM (740mm) 75 IPM (1900mm)
Depth of Cut .05" (1.3mm) .05" (1.3mm)
Width of Cut .100-.375" (2.5-9.5mm) .100-.375" (2.5-9.5mm)
Cycle Time 14 min./part 5.3 min./part
Tool Life 45 min. 60 min.
Insert Cost $8.50 $5.60

POCKET MILLING improved 355%

Dapra Square Shoulder saved $2,560 on 250 parts

Material: 6061 Aluminum • EN AW-6061

Competitor DAPRA
Cutting Tool 1" Square Shoulder 1" Square Shoulder
Speed 4000 RPM 10,000 RPM
Feed 100 IPM (2500mm) 400 IPM (10,000mm)
Depth of Cut .100" (2.5mm) .100" (2.5mm)
Width of Cut .50" (12.7mm) .50" (12.7mm)
Cycle Time 10 min./part 2.5 min./part
Tool Life 120 min. 240 min.
Insert Cost $11.00 $9.60

HARD FACE MILLING improved 2285%

Dapra Square Shoulder saved $1,700 per part

Material: D2 • Hardness: 62 Rc • D2 / 1.2379 / SKD11

Competitor DAPRA
Cutting Tool 1/2" Carbide Ball 1" Square Shoulder
Speed 2000 RPM 1150 RPM
Feed 20 IPM (500mm) 12 IPM (300mm)
Depth of Cut .005" (.13mm) .010" (.25mm)
Width of Cut .020" (.5mm) .375" (9.5mm)
Cycle Time 9 hours 48 min.
Tool Life 60 min. 20 min.
Insert Cost $65.00 $6.40

PERIMETER MILLING improved 292%

Dapra Helical Rougher saved $14,300 on 5000 parts

Material: Cast Iron – 65-45-12

Competitor DAPRA
Cutting Tool 1-1/4" Helical Rougher HREM1250 Helical Rougher
Speed 1980 RPM 2300 RPM
Feed 26 IPM (660mm) 28 IPM (710mm)
Depth of Cut .450" (11.5mm) 1.125" (28.5mm)
Width of Cut .300" (7.6mm) .300" (7.6mm)
Cycle Time 65 hours / 5000 parts 21 hours / 5000 parts
Tool Life 76 min. 238 min.
Insert Cost $11.27 $6.23

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