As we all know, with the increasing quality requirements on the gears and the raising costs on the raw materials, the manufacturers must would like to search some ways to reduce the tool costs.But because of gear’s high hardness after heat treatment, the production costs can’t be easily reduced.
Halnn Superhard, as one of the Production-oriented enterprises, began to researched new cbn materials specific for high hardness materials since established. Gear is one of the common components. Specific for this, Halnn has special cbn grades.
Specific for hard turning gears, we have the whole solutions and professional cbn grades. Then we will tell you how to choose the the right cbn grade.
(1) First, you need to make sure that if your workpiece hardness is high enough, and whether it can use cbn or not? Normally, cbn insert is used for machining the component which hardness is above HRC45, for the workpiece which hardness is below HRC45, you can choose carbide insert.
(2)If the gears exist interrupt turning condition, what is the allowance? For hard turning gears, we have the following cbn grade:BN-S20, BN-H10,BN-H11 and BN-H21.
We will choose cbn grade depending on different allowance,
If the allowance within 0.3mm, you can choose BN-H10,BN-H11,BN-H20 and BN-H21
If the allowance is above 1mm, you can choose BN-S20 solid cbn.
Then choose cbn grade depending on the machining condition.
For continuous turning condition, we recommend BN-H10 and BN-H11 PCBN Insert;
For semi-interrupt turning condition,we recommend BN-H20 and BN-H21 PCBN Insert;
For heavy interrupt turning condition, we recommend BN-H21 PCBN Insert
(3)Then you can contact with our engineer, and tell us about your problems. We can make whole solutions for you.
(4)Last, after all the steps finished, Halnn will send you one form, then you only need to fill the information as detailed, we will help you solve your problems.
If you also have any problems, please feel free to contact with us info@halnntools.com.