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Gear Making Industry


       Machining parts: face and inner hole    

       Workpiece material: 20CrMnTi              

       Hardness: HRC58-62

       Insert: CBN overall composite insert

    While controlling gear processing costs, how to achieve efficient, high-precision and high-stability processing is the driving force and goal for the automobile manufacturers to compete. The processing technology of automotive transmission gears is mainly divided into soft tooth surface processing and hard tooth surface processing . Soft tooth surface processing generally adopts hobbing → shaving → heat treatment process, and hard tooth surface processing adopts hobbing → heat treatment (carburizing) → grinding process.

    At present, in response to the requirements for high-efficiency, high-precision and high-stability machining of automotive transmission gears, in 2004, Danpeng   integrated PCBN overall solid inserts, which successfully applied to the intermittent processing of large gear hard tooth surface (HRC62), it realized that turning replacing the grinding technology, which greatly improved processing efficiency.

In addition, Danpeng has made new breakthroughs in car gear carburizing and quenching of end faces, inner holes, tapered surfaces of synchronous meshing gears, and hard turning of gear shafts. The developed PCBN overall double-sided composite inserts have been successfully used in this field, and the technology is very high.

    The CBN inserts with materials BT7600、BT7800、BT2800、BT6000 from Danpeng are widely used for HRC50-HRC79 gear carburizing and quenching, cast iron brake discs, air conditioning refrigeration pre-shrinking machines and other industries,It solves the problems of low efficiency and high cost of carburizing and hardening parts of ceramic blade precision turning gears. It is difficult to guarantee the precision and shape tolerances of the precision turning of the blades, and the CBN inserts have high durability. Most of them belong to normal wear and tear during use. The phenomenon of chipping is less, and the hardened parts with high hardness between turning, milling, boring, and grooving finishing HRC45-HRC68 make a great contribution.

    As the tool manufacturer for the gearbox processing of automotive transmissions, Danpeng provides cutting CBN tools for internal bores and end faces of gears, gear shafts, coaxial fork grooves, etc. Performance, can meet the processing needs of more users, and develop to a larger processing range.

PCBN Brazed Inserts Finishing Gear Inner Bore

Inserts Manufacturers

Coated Ceramic Blade

BN Inserts

Workpiece name and Materials

20GrMoTi(HRC58-63)

Processing Position

Inner Bore

Inserts Model

CNGA120408

CNGA120408-ZH

Cutting Depth (mm)

0.5

Linear Velocity(m/min)

150

Feed(mm/r)

0.5

Inserts Life(pieces/edges)

60

164

Processing Quality

Ra1.2

Ra0.8

Remark: BN inserts life is 73% longer than customer's inserts life.


PCBN Brazed Inserts Finishing Gear Face

Inserts Manufacturers

Other CBN Inserts

BN Inserts

Workpiece name and Materials

20GrMoTi(HRC58-63)

Processing Position

End Face

Inserts Model

CNGA120404 Coated

CNGA120404-ZH Coated

Cutting Depth (mm)

0.2-0.3

Linear Velocity(m/min)

80

120

Feed(mm/r)

0.08

0.12

Inserts Life(pieces/edges)

200

200

Efficiency

1

2.25

Processing Quality

Ra1.6

Ra1.6

Remark: The efficiency has been improved by 125%, meeting the process requirements, and the customer is very satisfied

 

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Factors that affect machining effect of PCBN insert

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PCBN Inserts
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PCBN Blank
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HBN Powder
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Milling Cutter
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Super Hard Abrasive
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