Drill for Heat-Resistant Alloys SGS Type
■ General Features SGS type drills for heat-resistant alloys employ a sharp cutting edge to reduce heat during drilling (reduce cutting force) and provide a long, stable tool life.
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■ Features and Applications Long tool life ● Combination of optimised cutting edge design and dedicated grade significantly reduces wear. ● Minute honing (edge treatment) amount and special thinning shape reduce cutting force. This reduces cutting edge breakage. ● Perfect for drilling Ni-based heat-resistant alloys (Inconel/Waspaloy/Hastelloy).
■ Product Range
Diameter Range (mm)
Cat. No.
Hole Depth (L/D)
MDW □□□□ SGS3
ø3.0 to 12.0
up to 3
■ Performance
Comparison of Cutting Force (Thrust)
Tool Life Comparison
Low Resistance (Reduced Load on Cutting Edge)
Long Tool Life (No Fracturing or Breakage)
1,000 1,200 1,400 1,600 1,800 2,000
Competitor's Product B Breakage after 5 Holes
Tool
SGS Type
Competitor's Product A
No. of Workpieces
Able to Continue after 50 Holes
Breakage after 30 Holes
0 200 400 600 800
SGS Type
Competitor's Product A
Competitor's Product B
Photo
8 12 16 20 24
8 12 16 20 24
8 12 16 20 24
Time [s]
Tool Diameter Part Material
: ø6.0
Tool Diameter Part Material
: ø6.0
: Inconel 718
: Inconel 718
Cutting Conditions : v
c =33 SFM,
f =0.003 IPR, H =0.315" (through),
Cutting Conditions : v
c =33 SFM,
f =0.003 IPR, H =0.630" (stop hole),
external coolant supply
external coolant supply
■ Application Examples
Comparison of Cutting Edge Wear after 30 Holes
Significantly Reduced Flank Wear
SGS Type
SGS Type
Able to Continue
Conventional Tool
Wear
0
20
40
60
80
100
Conventional Tool
No. of Holes
Tool
: MDW 0600SGS3
Part Material
: Inconel 718 (aeronautic components)
Cutting Conditions : v
c =33 SFM,
f =0.0023 IPR, H =0.118" (through),
external coolant supply
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