Technical Info

Application for machining of high-Cr steel shaft





1.  Trasmission shaft, Finishing, wet cutting with coolant.

     Material: 20CrMo, HRC 60-66;
    
       
    

     CBN inserts ( Tipped PCBN layer 4 cutting edges or 2 cutting edges): Grade CB95 , VNGA160408  S01020/S01030

     Ap: 0.1mm, Feed:0.15mm/r, Speed Vc:150m/min; 

     Tool life: 145--150 pcs per edge. 


                   

 
2.   Engine crankshaft, roughing,  finishing, with coolant. 

      Material: 42CrMo, HRC 40-48;

     
     
     
     CBN inserts( solid CBN corner or tipped PCBN inserts): DNGA110408 S02020, CNGA120408 S02020
                                                   Grade S90 (roughing) , 
                                                   Grade S91 (finsihing) , 

     Depth of cutting Ap: 0.3mm, Feed rate( F): 0.1mm/r, Cutting Speed Vc:170m/min; 

     Tool life: 35--40 pcs per edge. 

                                                            





    

 

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