overview

The finishing of hardened hardware (hardness HRC55 or more) is usually completed by grinding processing methods, but with the development of tool materials and the improvement of machining accuracy of lathes (especially CNC lathes), hard cutting instead of grinding to complete the final processing of parts has become a new way of finishing, this process method of turning instead of grinding has the following advantages:
(1) can improve the processing flexibility, break through the restrictions of grinding wheel grinding, by changing the cutting edge and the way of moving the tool can process different geometric shapes of the workpiece;
(2) The environmental problems in cutting processing are becoming more and more serious, the waste liquid and waste generated by grinding processing are more and more difficult to deal with and remove, and harmful to the human body, and the hard cutting does not need to add coolant, which is of great significance;
(3) High cutting efficiency, short processing time, small equipment investment costs, can reduce processing costs;
(4) The energy consumed by cutting the same volume is only 20% of the grinding, so the cutting heat generated is less, the machining surface is not easy to cause burns and tiny cracks, and it is easy to maintain the integrity of the workpiece surface performance;
(5) Under the same metal removal rate, hard cutting saves energy than grinding.
The tool materials usually used for hard cutting are ceramic, TiC coated blades and PCBN tool materials, but to perform hard turning at higher speeds (1000m/min or more), PCBN is the best tool material variety. Such as in the automotive gearbox synchronizer sleeve fork (material is 20CrMnTi, hardness is HRC58~62) processing with car grinding, the efficiency is increased by more than 4 times, and the processing cost is reduced to 1/3~1/2 of the original grinding process.

Folding has high thermal stability and high temperature hardness
The heat resistance of CBN can reach 1400~1500℃, and the hardness is the normal temperature hardness of Al2O3/TiC ceramics at 800℃. Therefore, when the cutting temperature is higher, the processed material will be softened, and the hardness difference between the tool will increase, which is conducive to the cutting process, and the tool life will not be affected.
Folding has high chemical stability
CBN has a high antioxidant capacity, no oxidation phenomenon at 1000 ° C, and iron materials at 1200~1300 ° C does not occur chemical reaction, but at 1000 ° C will produce hydrolysis with water, resulting in a large number of CBN wear, so with PCBN tool wet cutting need to pay attention to select the type of cutting fluid. Under normal circumstances, wet cutting does not significantly improve the life of PCBN tools, so dry cutting is often used when using PCBN tools.
Folding has good thermal conductivity
The thermal conductivity of CBN material is lower than diamond but much higher than carbide, and with the improvement of cutting temperature, the thermal conductivity of PCBN tool continues to increase, so that the heat at the tip of the tool can be quickly transmitted, which is conducive to the improvement of workpiece processing accuracy.
Folding has a low coefficient of friction
The coefficient of friction between CBN and different materials is between 0.1 and 0.3, which is much lower than the coefficient of friction of cemented carbide (0.4 to 0.6), and it decreases slightly with the increase of friction speed and positive pressure. Therefore, the low friction coefficient and excellent anti-bonding ability make it difficult to form a retention layer or chip nodules when cutting CBN tools, which is conducive to improving the quality of the machined surface.
Folding is suitable for high-speed and ultra-high-speed cutting technology
PCBN tools are most suitable for high-speed cutting of cast iron, hardened steel and other materials. From the PCBN tool cutting cast iron and hardened steel tool back tool wear and cutting distance relationship can be seen: when the cutting speed exceeds a certain limit, the higher the cutting speed, PCBN tool back tool wear speed is smaller, that is, high-speed cutting tool life is higher, this feature is especially suitable for modern high-speed cutting processing.

• Suitable for workpiece : Carbon Steel, Aluminium alloy, Cuprum, Acrylic
• HRC:  45/55/60/65 HRC ,After quench, for processing large hardness of 150°
• Other Service:  OEM/ODM or custom-made
• Effect:   cut aluminum parts in large area, saving time and labor
• Machining parts:Outer circle and inner circle of turning parts

 
Q:Are you Manufacture?
A:Yes, we are manufacture. we produce our “JOEBEN “brand tools for gurantee the quality.
We also trading related tools for customers because we are in these field over 10 years, we are very familiar Chinese market tools. we usually help our customer choose the best suitable related tools for them.
Q: What is your delivery time?
A: Most of models are ex-stock, if out of stock,there usually need about 3-5 days or 7-10 days.
Q: Can you produce non-standard tools?
A: Yes, we can produce non-standard tools as per your drawing.
We also can design tools for you as per your usage requirement
Q:What is your advantages?
A: We are factory who produce our own brand “JOEBEN” tools, we must gurantee our brand quality. Also, we have factory price and fast delivery.
 
Our advantage:

• 1. 10 years experience in carbide roll and cutting tool manufacturing
• 2. From row material to tool produdtion.
• 3. World top level prodution equipment and rich experience team

ATTACTION:

• 1.Make sure work piece and machine are stable and use a precision holder.
• 2.Please adjust the speed,feed and cutting depth according to actual cutting conditions.
• 3.The milling conditions are for an end mill where the tool overhang length is less than 4*D(mill diameter). When the tool overhang length is longer, please adjust the speed,feed and cutting depth.