CBN Insert -- More Suitable Cutting Tools for high Speed
With the increasing use of high precision CNC machine tools in manufacturing industry, how to improve productivity to reduce production costs, shorten the production time and delivery time to improve the overall competitiveness is problem that manufacturers need to think. The emergence of high-speed cutting technology won much attention.
To achieve high-speed cutting, it not only needs high-precision machine tools, but also needs to good quality cutting tools. Choose the right cutting tool can be more effective.
The current tool materials include carbide insert, ceramic cutters and superhard tools (CBN Inserts and PCD Cutters). This article mainly explains the cutting tools selection in the ferrous metal materials field, that means cbn insert. Because pcd insert are mainly used for non-ferrous metal industry.
Cutting Tools Material analysis that can achieve high cutting speed
(1) Carbide Insert: The Cutting speed can be control at 350m/min because of the low hardness of the blade body, when more than 350m/min,the carbide insert will wear seriously, so it is not suitable for high cutting speed.
(2) Ceramic Cutters: The hardness and wear resistance are higher than the
carbide insert, but the big brittle is a fact, ceramic cutters are mainly for finishing process and also should try to avoid interrupted turning and large margin cutting.
(3) CBN Insert: is the first choice for high speed cutting, and is widely used
in cast iron and hardened steel industry.
CBN Inserts for machining gray cast iron with high cutting speed
Gray cast iron is widely used in automobile, machine and other industries, such as auto parts brake discs, brake drums are all mass production, so the use of high-speed cutting technology can significantly improve production efficiency and reduce total production costs. When CNC machine tools machining gray cast iron parts with high cutting speed, it needs cbn inserts at the same time.
CBN Insert itself has high hardness, linear speed can reach more than 1000m /min, it will have excellent wear resistance. And the use of dry cutting avoid the environmental pollution that brought by the cutting fluid, reducing the total production cost.
For example, Halnn researched BNK30 CBN Materials specific for gray cast iron materials parts, it is made of nano-bonding agent and high purity cubic boron nitride particles with the best ratio, can machining gray cast iron parts at the cutting speed of 500-2000m/min, to meet the stable cutting requirements of the brake discs, brakes, engines, gearbox and other parts. The advantages in the field of finishing process are more obvious, the tool life and stability are 50% higher than other common cbn insert.
Specific cases are as follows:
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Materials
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FC250
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Hardness
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HB180~210
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Diameter
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φ382
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Roughness
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Ra1.6
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Machining Type
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Dry Cutting
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Cutting Data |
Vc=700m/min,Fr=0.4mm/r,ap=0.25mm |
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Testing Performance
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Insert Material
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Insert Model
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Tool Life
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Other CBN
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SCGN090408
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110
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Halnn BNK30
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SCGN090408
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160
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If you would like to know more application case on machining brake disc,please click http://www.halnncbn.com/Cases/Automotive_industry/,or feel free to contact with us info@halnntools.com, Whatsapp:+8615617635382