Общий каталог Mitsubishi 2020 - 2021 - страница 250

Предыдущая страница Следующая страница

Навигация

MB4120

a The first recommendation that can be widely used for continuous to interrupted cutting of sintered alloy and cast iron.

FEATURES

High Fracture Resistance B

Fine CBN particles increase cutting edge toughness. The

high fracture resistance allows stable performance even

during interrupted machining.

High Adhesion Strength MB4020 MB4120

of Fine CBN Particles MB730 Optimization of the sintering conditions strengthens adhesion between fine CBN particles. This increases both

fracture resistance and wear resistance. Fracture Resistance

y Application Example

Fracture Resistance Comparison During Interrupted Facing of High Strength Sintered Alloy

MB4120

Conventional A <Cutting Conditions> Work Material : High Strength Sintered Alloy Insert : NP-TNGA332-SE3 Cutting Speed : vc=490 SFM Feed : f=.006 IPR Conventional B Depth of Cut : ap=.004 inch Cutting Mode : Wet Cutting

050100150200Excellent chipping resistance in interrupted face
No. of Passes Before Fracturecutting of gear.
Comparison in Continuous Machining of AISI No 35 B

4.72 MB4120 1200 sec Conventional 1200 sec

3.94 3.15 Conventional Chipping

2.36

MB4120

1.57 <Cutting Conditions> Work Material : AISI No 35 B (Perlite) .79 Insert : NP-TNGA332-SF3 Cutting Speed : vc=2625 SFM Feed : f=.004 IPR 0 Depth of Cut : ap=.008 inch

30 90 150 210 270 360 480 600 720 840 960 1080 1200 Cutting Mode : Dry Cutting

Cutting Time (sec.) It has excellent fracture resistance as compared to conventional products.