Hard turning hardened steel parts used Halnn BN-S200 hard turning insert

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 difficult to machining.

 

The characteristics of hardened steel when it was hard turning

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

This is the main characters,when the hardened steel hardness arrive HRC50~60,the strength will arrive 2100~2600 MPa,so it belongs to the most difficult to machining materials .

 

B.Large cutting force,high cutting temperature

The cutting force need to arrive 4500 MPa,in order to improve the cutting conditions,add the surface which used for release heat,we need choose small cutting angle,and it also need the cutting inserts have good rigidity.

 

C.Not easy to appear cutting chips

Hardened Steel have high hardness and big brittleness,so it will have bad surface roughness.

 

D.The cutting edge is easily chipping ,wear

Because of big brittleness of hardened steel,the cutting force and cutting temperature will concentrate near the cutting edge,easily caused chipping and wear.

 

E.Low Thermal Conductivity

Hardened Steel has low thermal conductivity,and belongs to difficult to machine materials, caused high cutting temperature,lead to the cutting insert wear.

 

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-S200 Solid CBN insert for rough machining

 

Halnn BN-S200 CBN insert features

BN-S200 CBN inserts belongs to Solid CBN inserts, which is a new technology used for rough machining hard to cut materials,and it is non-metal adhesive CBN inserts,help many manufacturers solve the problems on machining high hardness castings ,hardened steel materials.

 

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.

 

BN-S200 Application industry

Slewing bearings,forged steel cold roll,sintered tungsten carbide field.

 

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