TNGA Bn-H20 for Hard turning insert from cbn manufacturer Halnn superhard
Halnn superhard is a professional manufacturer of cbn insert,and already become a famous insert brand in China. Halnn always devote to researching new cbn insert materials to satisfycustomers' requirements.
Following Halnn will show you hard turning and hard turning insert:
Hard turning process usually was definited the work piece which hardness is above HRC45,the hardness of the typical parts will range between HRC58~HRC68.Hard turning can be used for man industries:Automotive,bearing,mold tool,machine and aerospace ect. There are also many materials can use hard turning ,such as bearing steel ,gear steel ,surfacing hardened steel,Nickel-based alloys,ect. In current times,quenching steel and Carburizing steel also begin to be used for hard turning.
Hard turning insert can realize “Turning instead of grinding”CBN insert can be used for hard turning instead of grinding,thus it will save the processing cost and the processing time ,so that improve the economic profit.
There are 3 kinds materials which can be used for hard turning: Cubic Boron Nitride(CBN),Ceramic and Carbide Alloy.The cutting tools choice need match with the processing efficiency and the processing costs.
1.For the work piece which need required strictly on the dimension and roughness,we need first to choose cubic boron nitride(CBN) insert.
2.For the work piece which tolerance is above 0.05mm,ceramic insert will be better choice.
3.For common workpiece without special requirement ,you can choose carbide insert.
For example,when interrupted turning gear,you need choose high content cbn insert,such as Halnn BN-S20 Solid CBN insert.Because BN-S20 CBN insert belongs to solid cbn insert,which has excellent chipping resistance and fracture resistance in a high temperature.And solid CBN insert also will have a good lifetime than common cbn insert.
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Machining Part:Hydraulic prop
Machining Materials:27SiMn
Workpiece Hardness:HRC 55
Inserts Grade:BN-S20 CNMN120712
Cutting Type:Dry Cutting
Cutting Parameters:ap=1mm,Fr=0.15 mm/r,Vc=145m/min
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| Inserts Materials |
Linear Speed(m/min) |
Lifetime improved |
Surface Roughness |
| Halnn BN-S20 |
145 |
12 times |
Ra 0.4 |
| Carbide alloy Inserts |
30 |
…… |
Ra 3.2 |
Even though many manufacturers already begin to try hard turning technology,but choose the most suitable insert also very little,so Halnn superhard,as professional manufacturers of CBN insert,will spare no effect to help these manufacturers save their cost and improve the processing efficiency with the environmental cbn insert.
Halnn always to devote to making the world have no difficult to machine materials.
Any questions on hard turning insert ,you can write to us halnntools@gmail.com ,Or contact with us directly:skype:cbn_inserts_angels
