Axis micro carbide drill
The COM-SUS and COM-D series of micro drills can improve tool performance significantly by MMP coating (ultra-precision surface finishing) to smooth the surface of cutting edges and grooves.
(MMP coating is available over Φ0.5.)
1.What is "MMP coating" applied to COM-SUS and COM-D series?MMP stands for Micro Machining Process
This can improve tool performance more than precision polished tools by surface treatment which is applied to smooth the cutting edge and groove of the cutting tool like a mirror surface.
Reduce cutting force
Extend the tool life is available by reducing cutting force.
Improve surface roughness
Improve precision of hole and stabilize machining.
Improve chip evacuation
Prevents sudden or chronic tool breakage.
Reduces welding of the cutting edge, stabilizes the hole diameter, and reduces burrs.
MMP coating allows to meet such needs.
2.Differences of the tool appearance
Without MMP coating
With MMP coating
Comparison for edge smoothless (x500)
Edge without MMP coating
Edge with MMP coating
MMP coating is the technology that can make the surface smooth and improve sharpness with remaining original edge like horning.
3.Test data and explanation videoWorkpiece material: SUS304
Tool: COM-SUS-0300 (MMP coated Φ3 drill, standard inventory product of Cominix)
Holder: BBT40 PG25x080H (REGO-FIX pressure clamping system)
Collet: PG25-CF 3.0
Machine: VCN-430A (MAZAK BBT 40 vertical machining center)
Cutting condition: Vc=25m/min S=2700rpm f=0.04mm/rev, 4mm depth of cut (peck feed at 1mm)
Performance comparing video: Japanese micro drill manufacturer A vs. AXIS
This is an explanation video of this article
Japanese micro drill manufacturer A: Defect in 8m machinnig
AXIS COM-SUS drill: Possible to keep using after 40m machining.
Comparison of thrust value and torque
Measurement result of maximum thrust value by Kistler
Japanese micro drill manufacturer A: 340N
Cutting force is improved over 30%.
4. Product lineup
All AXIS drill of over Φ0.5 COM-SUS series and COM-D series which Cominix standard inventory, are MMP-treated.