Finishing Brake Drum with DNML CBN Cutting Tools Cubic Boron Nitride Inserts
1. Halnn Tools CBN Tips Semi-Finishing Grey Cast Iron Brake Drum
With the increasingly fierce competition in the brake drum industry, tool materials in the process of rough brake drums must not only ensure high surface quality, but also achieve high-speed cutting, improve production efficiency, reduce production costs, and improve the company's Self-competitive. At this time, the CBN inserts BN-S300 grade is selected, which can easily realize high-speed cutting, and ensure product quality and reduce production cost.
2. Why we Choose Halnn Tools CBN Tips Semi-Finishing Grey Cast Iron Brake Drum
With the prevalence of CNC machine tools, more and more CNC machine tools are used for mass production enterprises. Traditional tools can no longer meet the performance, efficiency and quality requirements of enterprises, so superhard tools will replace traditional tool processing more and more. gray cast iron.
For example, Halnn superhard tool BN-S30 grade roughing pressure vessel flange adopts SNMN120712 model, cutting parameters are: speed=450,Cutting depth (ap)=3mm,Feed rate (Fr)=0.5mm/r. Dry cutting, a cutting edge of 410 pieces, an inserts with 8 cutting edges, equivalent to an inserts processing 3280 pieces of flange. Can see its tool strength.
Not only the superhard tool BN-S30 brand has been added significantly, but also the superhard tool BN-K20 grade finishing gray cast iron parts have also been approved by users. For example, WNGA080408-6S is used to process the braking surface and the mouth part without cracks. Appeared, the number of workpieces processed exceeded 300 other PCBN inserts, and the roughness reached Ra1.0.
3.CBN Turning Tools Characteristics
| Insert Grade | Suited Materials | Machining Type | Typical Application |
| BN-S300 | Gray Cast Iron | Roughing, Finishing | Brake Disc, Cast Iron Engine,Gearbox, Cylinder Liner |
4.Pictures of Halnn Tools CBN Turning Tools
5.Detailed Data of CNMO CBN Turning Tools
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| Type | Dimension | Standard Chamfer | Grades |
| L(mm) | φI.C(mm) | S(mm) | r(mm) | BNK30 | BN-S300 | BN-S20 | BN-S200 |
| CNMO120704 | 12.9 | 12.7 | 7.94 | 0.4 | S02020 | | ● | | |
| CNMO120708 | 12.9 | 12.7 | 7.94 | 0.8 | | ● | | |
| CNMO120712 | 12.9 | 12.7 | 7.94 | 1.2 | | ● | | |
6.Application Case
Compared to coated carbide inserts: the cutting speed of the Halnn superhard BN-S300 grade CBN insert is 2.8 times that of the coated tool, and the feed rate is 2 times, the tool life is 15 times for the coated tool.
| Tool material | Feed Rate
Fr (mm / r) | Cutting Speed (Vc)
(m/min) | Tool life |
| Halnn superhard BN-S300 grade | 0.9 | 280 | 75 pieces / edge |
| Coated carbide insert | 0.45 | 100 | 5pieces / edge |
7. Our service
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Finishing Brake Drum with CNMO CBN Cutting Tools Cubic Boron Nitride Inserts Images
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