Halnn PCBN Inserts 

Halnn PCD Inserts

Brief Introduction of Cutting Tools Material in Modern Times

Brief Introduction of Cutting Tools Material in Modern Times

Part 1 Cutting Tools Materials Performance requirement

Tool material performance requirements are mainly include strength, hardness, heat resistance, thermal conductivity and economy five areas.

First, as the tool material, high strength and wear resistance are necessary. The Cutting Tool should cut the workpiece to form the special shape. Actually, the cutting tools cut the materials depending on the Friction between the cutting tools and the workpiece. So wear resistance is also a character of cutting tools. Generally, hardness higher, better wear resistance. So the cutting tools need high hardness and excellent wear resistance.

Second, the cutting tool material need obey the vibration and shock between the cutting tools and the workpiece. So the cutting tools need high strength and good toughness.

Thirdly, the tool material needs to have good heat resistance and thermal conductivity, in which heat resistance is an important indicator of the quality of the tool material. As mentioned above, the cutting of the tool actually depends on the high-speed friction between the cutting tools and the workpiece. Friction heat,  also known as cutting heat, caused by the friction between the tool and the workpiece. So how to keep the excellent performance in high temperature is very important.

Forth, the cutting tools need excellent thermal conductivity, then the cutting tools can quickly pass the cutting heat, and reduce the heat amount and keep the tools good performance in the process.

Finally, the economy of the cutting tools. There are so many kinds of cutting tools materials. And the manufacturers also insist researching new cbn inserts materials, also the tools price will be different. So the customers should choose the right and suitable tools depending on their own conditions.

Part 2 The Classification of tool materials

Common Cutting Tools Materials include high speed steel, carbide insert, coating insert, Ceramic, Diamond and Cubic Boron Nitride.

(1)     High-speed steel is generally used as a tool for forming tooling and hole cutting tools, but it is  often used for low speed cutting because of its performance. However HSS cutting tools with high performance also are widely used after improvement.

(2)     The performance of the carbide insert will be better than HSS Tools, carbide insert are also used common process. And HSS tools also begin to be used in complex process with the improvement of the performance.

(3)     Coating Inserts are the tools of adding special coating on the HSS tools and Carbide insert, in order to improve their performance.

(4)     Diamond Tools have highest hardness in the cutting tools industry. It often is used for high precision area. It is used for machine Nonferrous metals.

(5)     And Ceramic Cutters also used in many industries, but it only can be used for low cutting speed process because of its large brittleness.

(6)     CBN Inserts. The hardness of cbn insert is only second to diamond insert. However cbn insert is used for machining ferrous metal, like hardened steel and cast iron parts.  

When you choose the cutting tools, you can choose depending on their performance and the character of the cutting tools materials itself. When you machining ferrous metals , like hardened steel and cast iron parts, cbn inserts will be your right choice. For cast iron parts, especially choosing BNK30, it will has better performance than Seco CBN.

If you would like to know something about cbn inserts, please click www.halnncbn.com, Or contact with us halnntools@gmail.com ,Or Whatsapp:+8618695866134

The whole Solutions on machining rolls with CBN Insert

The whole Solutions on machining rolls with CBN Insert

In the past, both rough machining and finish turning rolls need grinding process, while it has low efficiency and the cutting fluid will bring pollutions, and affect the health of the operator. So In modern times, hard cutting tools become featured products on hard turning hardened steel rolls and are already widely used, the processing efficiency already improved 5~10 times, which will avoid the pollutions and lower the production costs.

This article will help you analysis all the details on the whole solutions of machining rolls.

Part 1 The choice of the tool holder for machining rolls

For large scale rolls, we usually use heavy duty mill rolls, and the tool holder often is 40*40, and the holder angle can be 45 degree or radius tool holder.

For some small rolls, we usually use 25*25 and 32*32 tools holder, and the choice of the angle can be decided by the length diameter ratio, the long rolls, we can choose 90 degree and 75 degree tool holder, the short one, we can choose 45 degree or radius tool holder.

Part 2 The Rolls Materials and corresponding hardness

Part 3 CBN Insert Grades specific for different Materials Rolls and the cutting data for reference

When using BN-K1 Solid CBN Inserts machining cast iron rolls, we usually use the following models: RNMN200800, RNUN200800, RNMN150700, RNUN160800, RNUN150716, RNMN150716 .

When using BN-S20 Solid CBN Inserts machining cast steel rolls, we usually use these models cbn insert SNMN120712, SNMN120412, SNMN120408, RNMN120400.

Part 4 Application Case from our Poland customers

They begin to make market research before purchase the CNC Lathe, Halnn stand out from all competitors just because of the best service. We offer whole solutions to our customers, and offer the after-sale service.

They use carbide insert before, so they proposed using cbn inserts, however they didn’t try cbn inserts before, so Halnn help them choose the holder, hard cutting tools and the cutting data for reference, the details as follows:

Machining Materials: hilled Cast Iron and High Ni-Cr hard cast iron

Machining Type: Roughing, Finishing and Grooving

Halnn CBN Insert Grade: BN-K1

Insert Model: RNMN090400S02020，RCMX090700S10020，RCMN090700S02020

Corresponding Tool Holder: CRDNN2525M090400，CRDCN2525M090700，CRDCN2525M090700Y

Finally, they achieve good efficiency, and we have bulit long cooperation relationship. 

If you also have problems on machining rolls, please feel free to contact with us halnntools@gmail.com, Whatsapp:+8618695866134

The whole Solutions on machining rolls with CBN Insert

How to improve the working efficiency of 30% on processing brake disc and drums?

BNK30----the new cbn insert grade for processing brake disc and drums, bring higher processing efficiency and longer tool life for the manufacturers.

Brake Disc and Rotors, as one of the most important Core components to ensure the Auto Safety, are required strictly on the quality. With the update of the manufacturing technology, it will require higher on the processing efficiency and tool life of the corresponding cbn inserts.

Halnn Superhard, as the predecessor of China superhard cutting tools, always devote to new technology development. More than 10 years experience on hard materials process, Halnn already achieved one after another breakthrough on new materials, technology and process. Nowadays, Halnn launched new cbn insert grade BNK30, specific for automotive parts brake disc, which have been tested with some of brake Rotors manufacturers, it has got excellent react. Now we made the following activity, all the brake discs manufacturers can supplied the inserts, details as follows:

 BNK30 solid cbn inserts have special advantages specific for other brand cbn inserts.

(1)     Can achieve better surface roughness

(2)     More stable and Longer tool life (improved 30% more than other cbn insert in the market)

(3)     Improve the processing efficiency

The application case as follows:

1.       BNK30 Solid CBN Inserts rough machining the Brake Discs

2.       BNK30 Solid CBN Inserts finish turning the Brake Drum

From above 2 application case, we can see that BNK30 solid cbn inserts can be used for both roughing and finishing process specific for Gray Cast iron typical parts Brake Discs and Drum. The following diagram have shown us that with the same cutting data, when rough turning the brake disc, the tool life with BNK30 will improve more than 40%, and when finish turning the brake drum, the tool life will improve about 70%.

In order to let more manufacturers improve the working efficiency and save the processing costs, Halnn will carry out the following free testing specific our new cbn inserts grade BNK30 from now:

1.       Oriented customers : Brake Disc and Drum Industry

2.       Participation Methods

(1)     Contact with us Whatsapp: +8618695866134 directly.

(2)     Scan the following QR Code to add us . Then we will tell you the details.

(3)     Send Email to me with title” Company Name+ Testing Brake Disc CBN”,  then we will contact with you.

(4)  Click http://www.halnntools.com/contect/28.html  and contact with us.

Halnn BN-S30 CBN inserts for turning Brake Discs with high efficiency

Brake Discs, as one of the main automotive parts, we usually use gray cast iron as the main processing materials. With the mass production of brake discs and the increasing costs on the raw materials, the manufacturers have many difficulties on the profits. In order to make sure the profit ,they need to find the cutting tools which can be used for turning brake discs with high speed turning .Cubic Boron Nitride, as the cutting tools which can offer high efficiency, can improve the processing craft and the processing efficiency.

In the past times, the manufacturers use common lathe machine the brake discs. The turning Craft is that roughing---semi-interrupted turning-finishing. It required high on the precision and Parallelism of the brake disc. At beginning, the manufacturers use carbide insert turning brake discs. And it has good effect for common lathe and small production.

With the development of the modern society, CNC Lathe will replace the common lathe turning brake discs with high speed turning. When with high speed turning, the carbide cutting tools will be not wear. The cutting speed with carbide insert can arrive 350m/min, if the speed above it, the carbide insert will be wear, so it will change the insert frequently.

In current times, specific to brake discs manufacturers with mass production, they usually use cubic boron nitride cutting tools. Cubic Boron Nitride Cutting Tools are the best cutting tools on processing the brake discs with high efficiency. The main advantages are high efficiency, high quality and high precision .For example, Halnn BN-S30 and BN-K20 CBN insert, which is researched non-metal adhesive solid cbn cutting tools specific to brake discs.

Halnn Superhard is a professional cbn inserts brand which include design, produce and service. In 2007, Halnn already launched BN-S30 solid cbn insert specific to high speed turning gray cast iron industry, which make cbn insert made in china seen by the world.

The big difference between non-metal adhesive cbn insert and traditional cbn insert is that improving the impact toughness with non-metal adhesive. Even though the brake discs belong to Precision casting, it also will have some problems in the casting process, such as sand, which will lead to collapse or not-wear. Halnn BN-S30 don’t have these problems.

Application Case of Bn-S30 CBN inserts roughing brake discs:

Machining Type: Roughing

Cutting Parameters: ap=2.5mm,Fr=0.45mm/r, Vc = 350m/min

Processing Effect: Compared with coated insert, the productivity will reduce half. But the lifetime will be few times than coated insert.

If the precision required high, Halnn will recommend you with BN-K20 welded pcbn insert. BN-K20 is researched for finishing process.

Cutting Parameters: ap=0.25mm,Fr=0.2mm/r, Vc =800m/min.

Processing Effect: Compared with coated insert, when the cutting speed is 2.5~3 times of coated insert, the insert lifetime will be about 20 times of coated inserts.

BN-S30 and BN-K20 advantages and application industry

Grade	Suited for machining	Advantage	Applicable Industry
BN-S30	Cast iron, hard-cutting material	Has good impact resistance and wear resistance during processing the cast iron and alloy parts	Brake disc, Brake Drum, belt wheel, parts of  air condition compressor, Powder sintering metal retainer, etc
BN-K20	Cast iron, Iron series sintered alloy	More flexible with the insert clamping way, more than one edge, good wear resistance	Brake disc, Brake Drum, belt wheel, parts of  air condition compressor, Powder sintering metal retainer, etc

Halnn CBN insert with solutions help the manufacturers improve the processing efficiency. If you would like to know more details or have any needs, please feel free to contact with me halnntools@gmail.com, Whatsapp:+8618695866134

The Application of Halnn CBN inserts in Air-conditioning compressor industry

With the development of the modern technology, more and more manufacturers will pay more attention on the working efficiency and the quality .So how to improve the working efficiency become an important problem.

In order to realize processing with high efficiency ,it need CNC Lathe ,Process Technology . For Lathe, more and more suppliers will use CNC Lathe to realize high speed turning ;For Process Technology ,every manufacturers will have their own technology to improve their processing efficiency; For Cutting Tools ,as the most important cutting tools for cut the working allowance to make sure the roughness and the dimension ,the cutting tools is the key sector for realize machining with high efficiency.

The air conditioning ect. For wework piece materials mainly work piece will affect the working efficiency. ,phenomenon ,which it will appear wear 350m/min,or the cutting speed can no more than insert ,but cast iron gray upper-bearing ,cylinder, include iron ,which cast gray use traditional carbide is compressor can
With the appearance of the cubic boron nitride ,it realize high efficiency turning .The hardness of the cbn insert can arrive HRC95~100, so it has excellent wear resistance, but it has big brittleness. So how to improve the toughness of cbn inserts become the most important problem.

In order to improve the toughness of cbn cutting tools materials ,more and more cutting tools manufacturers begin to research new cbn materials.Halnn is the lead brand of cbn inserts ,first researched BN-S20 Solid CBN insert which can be used for heavy interrupted turning and BN-K1 CBN insert which used for interrupted roughing high hardness cast iron with large working allowance.

Specific to air-conditional compressor industry, Halnn research new cbn insert materials BNK30 and BN-K20 which can realize processing with high efficiency. Both of them belong to welded cbn insert ,it has more cutting edge and will be more economic ,and has excellent wear resistance .The cutting speed can arrive 1500m/min .Compared with imported pcbn inserts ,Halnn cbn insert has better performance.
The following is the application case of cbn inserts BNK30 and BN-K20 machining air-conditional compressor parts
(1) Halnn CBN insert BNK30 processing air-conditional compressor upper-bearing
Workpiece Materials

(2) Halnn CBN insert BN-K20 processing the cylinder of air-conditional application
Workpiece Materials

If you would like to know more details ,please feel free to contact with us halnntools@gmail.com ,whatsapp:+8618695866134

Halnn BN-K1 Grade CBN Insert---the Best Cutting Tools for machining Cast iron

Halnn BN-K1 CBN insert is one cutting tools which are widely used in cast iron industry, belong to patent product. Halnn use non-metal adhesive ,not only have high processing efficiency on heavy cutting ,but also make sure long lifetime with high stability.

BN-K1 cbn insert use the indexable holder, so it only need turn when change the tips, doesn’t need re-infeed and avoid the cutting marks.
High content Cubic Boron Nitride, Special adhesive and high efficiency cutting tools ability will make sure improve machining efficiency in the process.

Halnn BN-K1 Grade CBN insert compared other brand cutting tools ,with 2 times of the cutting speed ,Halnn BN-K1 CBN insert will machine workpiece about 8 times of other brand .And Halnn has all ISO insert which suit for processing high hardness casting .

The advantages of Halnn BN-K1 CBN insert:(1) Safe Processing
a. The content of CBN arrive 90%, which will reduce the wearness , realize castings processing stability.
b. Halnn non-metal adhesive ,which has excellent Anti-fracture performance, which realize stable cutting tools lifetime
c. Halnn has all ISO standard insert model ,more cutting edge ,reduce the insert costs .
(2) Easily Installation and Removal
a. The holder is indexable holder ,we only need tighten the screws.
b. Change the insert easily: we only need turn to other tips , don’t need re-control the insert, avoid the cutting tools marks.
(3) Heavy Cutting ,High Speed Turning
a. BN-K1 can make sure the roughness with high precision
b. It has more cutting edge, and we can make customerized one .
Compared Halnn BN-K1 CBN insert and with other brand insert

If you would like to know more details on BN-K1 CBN Cutting Tools ,Please feel free to contact with us halnntools@gmail.com ,whatsapp:+8618695866134