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PCBN tools for machining Gear shaft

2020-12-14 17:18:30

Gear shaft refers to a mechanical part that supports rotating parts and rotates with it to transmit movement, torque or bending moment. It is generally in the shape of a metal round rod, each section can have different diameters, and the rotating parts in the machine are mounted on the shaft.

 

Gear shaft

 

01 Gear shaft processing requirements

(1) Gear shafts are the main basic transmission components and consumable parts of automobiles and machine tools, and their quality directly affects the noise, stability and service life of automobiles and machine tools.

(2) The gear shaft is mainly subjected to alternating loads, impact loads, shear stress and contact stress. The shaft is prone to cracks and the teeth are prone to wear. Therefore, the core of the gear shaft is required to have a certain degree of strength and toughness, a higher fatigue limit and multiple impact resistance.

(3) The surface of the gear shaft should also have a certain degree of hardness and wear resistance. In order to obtain a good service life, gears and gear shafts are often carburized and quenched.

(4) The difficulty in hard turning of gear shafts is that there are intermittent cutting in some positions, such as small holes on the end of the gear or key grooves in the inner hole. The hardness is high and there are strong interruptions, which will easily cause chipping and rapid wear of the tool. And other issues.

 

Gear shafts

 

02 , The advantages of More SuperHard PCBN tools for machining gear shafts

The More SuperHard PCBN blade is made by advanced production technology and production equipment. It has high hardness, good red hardness at high temperature, and is suitable for cutting in strong, weak and continuous environments. In the subdivision field of gear shaft processing, More SuperHard PCBN blades have been verified by the market. They have the characteristics of strong versatility, good wear resistance, high surface finish after processing, reducing tool change time, greatly improving production efficiency, etc., replacing hard materials. The advantages of alloy tools are obvious.

 

PCBN tools

 

03,More SuperHard PCBN tool processing gear shaft case

Inner hole finishing

Factory

Abroad

More Super Hard

Workpiece & Material

Shaft gear (200GrMoTi HRC58-63)

Processing part

Inner hole

Cutting tools & Material

CNGA120408 creamic

 CNGA120408 CBN

Depth of cut  ap(mm)

0.5

Linear velocity  V(m/min)

150

Feed   f(mm/min)

0.08

Tool life

60

164

Roughness

Ra1.2

Ra0.8

 

End face finishing

Factory

Abroad

More Super Hard

Workpiece & Material

Shaft gear (200GrMoTi HRC58-63)

Processing part

Inner hole

Cutting tools & Material

CNGA120408 CBN

 CNGA120408 CBN

Depth of cut  ap(mm)

0.2-0.3

Linear velocity  V(m/min)

80

120

Feed   f(mm/min)

0.08

0.12

Tool life

200

200

Roughness

Ra1.6

Ra1.6

Efficiency

1

2.25

 



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