44W Structural Steel Plate: GEN2 T-A 
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The Challenge

The customer is drilling solid steel plates made of 44W structural steel. They are using a Daewoo 4020 D 20HP Vertical Machining Center with 300 PSI (20.684 Bar) through tool coolant.

The customer requested a tool that could break the chip, as they were getting ‘bird nests’ around the spindle every time.

The GEN2 T-A eliminated the poor chip formation while significantly reducing the cost per hole.

Product: GEN2 T-A
Objective: Better chip formation
Industry: Structural steel/ fabricator
Part: Plate
Material: 44W structural steel
Hole Ø: 0.813" (206.502mm)
Hole Depth: 4.000" (101.600mm)

The Solution
The GEN2 T-A drilling system
  • Holder: 26005H-075F
  • Insert: 450H-0022-HE
Measure Competitor GEN2 T-A
RPM 525 1230
Feed Rate 0.010 IPR (0.254 mm/rev) 0.007 IPR (0.178 mm/rev)
Penetration Rate 5.25 IPM (133.350 mm/min) 8.8 IPM (223.520 mm/min)
Cycle Time 1 min 12 sec 45 sec
Tool Life 1200 linear inches (30.48M) 1500 linear inches (38.1M)
The GEN2 T-A offered 95% cost per hole savings over the competitor tooling.

The Advantages
The GEN2 T-A Drilling System provided:
  • 37.5% cycle time decrease
  • Decreased cost per hole
  • Eliminated poor chip formation