Process flow chart of spiral bevel gear

Number Procedure   Machine
1  forging    
2 heat treatment normalizing  
3   

Milling two end faces and drilling central hole

  

 

Special drilling machine

4   

 

Axle neck and back cone

  

 

CA6140 horizontal lathe

5   

 

Groove cone end face

  

 

 

CA6140 horizontal lathe

6   

Milling involute splines and drilling holes

  

 

ZBT8216 combined milling and drilling machine

7   

Grinding journal and end face

  

3T16 end face cylindrical grinder

8   

 

          

Processing thread

  

 

CA6140 horizontal lathe

9 Intermediate inspection Ø65.4 Ø50.40 Ø47.25  
10   

Rough milling gear

  

 

 

Gear milling machine B016

11   

 

Finish milling gear convex

  

 

Gear milling machine N016

12   

 

Finish milling gear concave

  

 

Gear milling machine N016

13 Intermediate inspection Contact area, backlash and tooth surface roughness  
14 Heat treatment correction Carburizing layer depth 1.2 ~ 1.6 quenching: surface hardness 58 ~ 63hrc, core hardness 33 ~ 48hrc  
15   

 

Grinding journal and end face

  

M1420a external grinder

16 Test    

 

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