Threading into Housing out of GG26CuCr4 with  KOMET  JEL®  MGF HPC, Thread Milling Cutter

Solution

Material:
GG26CuCr4 (grey cast iron with chrome)

Part:
Housing

Thread:
M12x1,5, 20,5 mm (0.8") = 1,7D long, blind hole

Situation:
Competitor's tool - tool life 250 threads
Tool change criteria: tapered thread
Pecularity: tool reach 110 mm (4.33")

Goal:
Increase tool life

KOMET-Solution

KOMET  JEL®  Standard Thread Milling Cutter MGF HPC M12×1,5 Artikel-# 88296002000113

Cutting data:
vc = 120m/min (394 SFM) = 4.070 r.p.m.
fz = 0,07/0,07 mm (0.0027")/tooth
th = 5,3 s

Due more available cutting edges (NZ7) we could keep up the same cycle time as the competitor's tool with 3 cutting edges, although we added a finishing path

Customer's Benefit

  • Tool life increased by 680% to 1.700 threads
  • Roughing and finishing path hace established a safe process regarding manufacturing a cylindrical thread