Halnn BN-H11CBN Cutting Tools  Hard turning hardened steel Bearing 

Halnn superhard is a professional manufacturer of CBN insert.Halnn as the most famous brand in cbn industry in China,always devote to researching new cbn insert material ,helping customers to solve their problems on hard turning .

 

Halnn will share you Halnn hard turning insert used for machining hardened steel

1.Hardened Steel

Hardened Steel is hard steel through heat treating ,also called quenched steel ,and the hardness after quenching will above HRC50,and will be hard to machining.

 

The characteristics of hardened steel when it was hard turning

A.High hardness,strength ,and nearly have no plastic:

B.Large cutting force,high cutting temperature

C.Not easy to appear cutting chips

D.The cutting edge is easily chipping ,wear

E.Low Thermal Conductivity

 

Specific to hardened steel hard to machining materials ,there are so many different industry used for their work piece ,if use traditional cutting tools ,it will waste processing time and the cost.

 

Halnn post new cbn insert materials specially researched for different parts with hardened steel materials:BN-H11 CBN insert for finishing.

 

2.BN-H11 Soldering CBN insert Product Features:

 

BN-H11 CBN inserts belongs to Soldering CBN inserts, which is saved both time and product cost for manufacturers because of more cutting edge .And it has high hardness, well wear-resistance and impact resistance ,the inserts Intensify more flexible.

 

The advantages of Halnn superhard CBN insert to machine hardened steel as follows:

 

(1)CBN inserts itself well performance

Halnn superhard researched non-metal adhesive CBN inserts,not only has high hardness,well wear-resistance and High temperature resistance,but also has strong impact roughness resistance.And it also can large allowance and interrupt turning quenched steel parts,and has high processing efficiency.

 

(2)Compared with Grinding,Costs lower

When grinding parts,we can choose different grinder machines depending on different workpieces,but when Halnn superhard CBN inserts machining quenched steel parts,it doesn’t need special cutting tools,machine and Fixture.It can process on the universal lathe and CNC lathe.

 

(3)Machine tool has good rigidity,and it can realized hard turning

The Premise of hard turning is that machine rigidity must be good.Modern machine tool which made in recently 15~20 years almost has good rigidity,and are enough to withstand hard turning.Halnn superhard researched some grade non-metal adhesive CBN inserts also can be used some machines whose rigidity are less.

 

(4)Dry Cutting,Reduce Pollution

CBN inserts use dry cutting,not only reduce Cooling device,but also save the costs on Cutting Fluid,It is clean and easy to handle chip.

 

(5) Large allowance and interrupt Turning is one of the Halnn superhard CBN inserts advantages 

Halnn Superhard CBN inserts use non-metal adhesive,improved the impact resistance,Fracture resistance and seismic performance.Cutting Depth doesn’t have limit,can cut all the inserts,and can interrupt turning quenched steel parts,such as large-scale gears surface.Halnn superhard CBN inserts will not appear not-wear and chipping phenomenon because of large deformation,large allowance which produced after heat-treatment.Halnn superhard CBN inserts break the myth of which CBN inserts can not used for large allowance interrupt hard turning quenched steel ,and is the worldwide breakthrough in CBN inserts industry.

 

Application Case:

Machining Parts:Bearing (GCr15)

Hardness:HRC62

Cutting parameters:Vc=140m/min，Fr=0.12mm/r，ap=2.5mm

Machining Type:Finishing and Dry Cutting

Machining Effect:Compared with some European brand,as following figure

Inserts Materials	Roughness	Lifetime/cutting edge	Linear Speed(m/min)
Halnn BN-H11	Ra0.8	12 pcs/cutting edge	140
Some European brand PCBN inserts	Ra0.8	10 pcs/cutting edge	140

Halnn is the most famous cbn insert brand in China, we have most professional engineer team to help you solve your problems on hard turning.Any questions you can contact with us halnntools@gmail.com, skype:cbn_inserts_angels