1. Halnn Tools BN-S200 CBN Brazing indexable Insert High speed Machining Hardened Steel Wind Power Bearing
Wind power bearings are often made of 42CrMo4 main material, and then subjected to the following steps for forging technology.
（1）Roughing: Forging type wind power bearings are processed, and carbide tools are selected for processing. For high hardness (above HRC454), Halnn Tools cubic boron nitride inserts can be selected to achieve a depth of 7.5mm. After that, there is a corresponding machining allowance for the subsequent finishing.
（2）Heat treatment: heat treatment of wind power bearings after roughing to improve the hardness, wear resistance and impact resistance of the workpiece, and obtain a good service life.
（3）Finishing: Finished machining of heat-treated workpieces. With the development of modern technology, surface roughness turning tools with accuracy requirements of Ra0.8 can meet the requirements.
2.Advantages of Halnn Tools CBN Brazing indexable Insert High speed Machining Hardened Steel Wind Power Bearing
The hardness and wear resistance of ceramic inserts are higher than those of cemented carbide inserts. However, due to the large brittleness, large machining allowance or easy-disintegration when there is intermittent working condition in the machined part, there is a certain limit in the field of turning instead of grinding bearings. .
The Halnn Tools PCBN insert is currently a more effective material for turning bearings instead of grinding. In particular, the BN-S20, BN-S200 and BN-H11 grades are widely used in the hard turning of bearings. And for different processing conditions, choose different tool grades, BN-S200 and BN-H11 grades are used for continuous cutting conditions, BN-S20 grades are suitable for any working conditions (continuous, interrupted cutting conditions).
3. CBN Brazing indexable Characteristics
|
Insert Grade
|
Machining Hardness
|
Processing Condition
|
Machining Materials
|
|
BN-S20
|
HRC45~68
|
Roughing
|
Hardened Steel
|
|
Semi-finishing
|
|
BN-S200
|
HRC45~68
|
Semi-finishing
|
Hardened Steel,
Superalloy
|
|
Fine Finishing
|
|
BN-H21
|
HRC62~68
|
Fine Finishing
|
Hardened Steel
|
|
BN-H10
|
HRC45~68
|
Fine Finishing
|
Hardened Steel and High Strength Cast Iron
|
|
BN-H20
|
HRC45~63
|
Fine Finishing
|
Hardened Steel
|
|
BN-H11
|
HRC45~63
|
Fine Finishing
|
Hardened Steel
|
4. Detailed Data of RCMX CBN Brazing indexable
|
Type
|
Dimension
|
Grades
|
|
L(mm)
|
φI.C(mm)
|
S(mm)
|
r(mm)
|
BN-K1
|
BN-S20
|
BN-S200
|
|
RCMX060500V
|
|
6.35
|
5.56
|
0.8
|
●
|
●
|
◎
|
|
RCMX060600V
|
|
6.35
|
6.35
|
0.8
|
●
|
●
|
◎
|
|
RCMX090700V
|
|
9.525
|
7.94
|
1
|
●
|
●
|
◎
|
|
RCMX120700V
|
|
12.7
|
7.94
|
1
|
●
|
●
|
◎
|
|
RCMX151000V
|
|
15.875
|
10
|
2
|
●
|
●
|
◎
|
|
RCMX191000V
|
|
19.05
|
10
|
2
|
●
|
●
|
◎
|
|
RCMX201200V
|
|
20
|
12
|
2
|
●
|
●
|
◎
|
|
RCMX251200V
|
|
25.4
|
12
|
2
|
●
|
●
|
◎
|
5.Application Case
|
Machining Site: Raceway and End Surface
Materials: 42CrMo4
Hardness: HRC47~55
Insert Model: BN-S200 RCGX
Cutting Data: Vc = 110m/min, Fr=0.45mm/r, ap=0.5mm
Processing Type: Dry Cutting
|
|
Compared with the ceramic cutters
|
|
Insert Materials
|
Cutting Speed (m/min)
|
Tool Life
|
Roughness
|
|
Halnn BN-S200
|
110
|
8
|
Ra0.8
|
|
Ceramic Cutters
|
90
|
1
|
Ra1.6
|
6.FAQ
Q. How can we be your agent in our country?
A. Please inform us your detailed company, we will discuss and propose helpful suggestion for you, and to find the best solution for you.
Q. Do you offer free samples?
A. Normally we do not offer free samples, but we guaranty our product’s quality.
Q. Is there cheap shipping cost to import to our country?
A. For small order, Express will be the best, And for bulk order, sea ship way is best but take longer time. For urgent orders, we suggest via air to airport or by Express send to your door.
Q. When you can reply to me when I send you an Inquiry?
A. We promise to reply within 24 hours(not including holidays) on receipt of your inquiry.
