High Speed Cutting Gray iron Brake Drum with Halnn Tools CNMO120704 CBN Tool

High Speed Cutting Gray iron Brake Drum with Halnn Tools CNMO120704 CBN Tool

 
1. Halnn Tools CBN indexable Insert​ Rough cutting Gray iron Gray iron Brake Drum
 
According to statistics, in the cost of machine manufacturing industry, the cutting fluid
has occupied 15%, and the costs on cutting tools only have 3%~5%. So the new technology of dry cutting will become one new technology. It not only can lower the total costs, but also can reduce the environment pollution. In the process, the most important is cutting tool material.,In order to achieve high cutting speed and dry cutting type, the cutting tools materials need have High temperature red hardness, stability and low Coefficient of friction. The materials can be only cubic boron nitride in nowadays.
 

 
2. Why we Choose Halnn Tools CBN indexable Insert​ Rough cutting Gray iron Gray iron Brake Drum
 

According to the processing steps and precision requirements of gray cast iron, Halnn has developed three CBN grade inserts . The following is a brief introduction to its performance and advantages.Classified according to the processing procedure:

(1) Roughing process, choose the solid CBN inserts----BN-S30 CBN grade, the advantage is: large cutting depth(ap), good wear resistance, long service life;

(2) Semi-finishing: Select the BN-S300 CBN grade inserts (the appearance of the blade is the same as the BN-S30 CBN grade inserts). The advantage is: high sharpness, high precision and long tool life;

(3) Finishing: The brazed CBN inserts---BN-K20 CBN grade is selected. The advantages are: high cutting speed(Vc), more cutting edge, and more flexible clamping method.

 
3.CBN indexable Insert Characteristics
 

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			●

 

 

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6.Application Case
 
The application case of Halnn CBN inserts machining brake disc:
 
Rough cutting Gray iron Brake Drum CBN insert with Halnn CBN indexable Insert​
 
Machining Part: Brake Disc
 
Cutting Data: ap=2.5mm,Fr=0.45mm/r,Vc=350m/min
 
Cutting Type: Dry Cutting
 
Machining Effect: The Production rhythm of CBN insert is only 50% of coating carbide insert. And BN-S300 use dry cutting methods, and reduce the environment pollution, which will be more environmental, and it has long usage life.
 

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