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Car Gearbox Industry

Application of Berlt PCBN inserts in gearbox processing

The transmission shell is equipped with transmission components such as input and output axle and gears, which are the core components of automobiles. The main role of the gearbox shell is to support the transmission axle and ensure the correct installation of the gearbox shell components and other components, so its processing quality directly affects the assembly accuracy and motion accuracy of the transmission assembly, and also affects the use of the car life. Therefore, in the process of processing the gearbox shell, the right inserts is particularly important.

At present, gearbox shell are mainly produced in batches. Due to the high-speed cutting, very fast wear will occur, resulting in shortened insert life. The use of traditional carbide inserts to produce gray cast iron gearbox shell is no longer in line with production requirements, and ultra-hard The development of materials has made PCBN inserts the first choice for processing gray cast iron gearbox shell. PCBN inserts can greatly improve production efficiency and product quality.

Case one:

Cutting tool manufacturer

Foreign coated alloy

Berlt zhengzhou

Workpiece name and material

HT250(HB200-300)

Machining parts

Surface of shell

Insert model and material

SNMF43B2GF5020

 SNGN12041(BTS2800)

ap(mm)

2.5

v(m/min)

200

750

f(mm/min)

950

2000

Tool life/pcs

20

320

Processing quality

Ra3.2

Ra3.2

Note: customer efficiency increased by 200%, tool life increased by 15 times

Case two

Cutting tool manufacturer

Foreign coated alloy

Berlt zhengzhou

Workpiece name and material

HT250(HB180-250)

Insert model and material

TPKN2204

SNFN120408(BTS2805)

 ap(mm)

0.3

 v(m/min)

197

664

 f(mm/min)

600

4000

Tool life/pcs

20

320

Processing quality

Ra1.6

Ra1.6

Note: the customer's efficiency is increased by 500%, the tool life is increased by 3 times, and the processing time per unit is 150s


Cast Iron Shell of Gearbox

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CBN Inserts for Gear Machining

1-20041610552S28.jpg

Factors that affect machining effect of PCBN insert

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