The reasons of CBN inserts cracking from Halnn Superhard
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- China
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- Halnn
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- cbn, cbn insert, cbn inserts, halnn superhard
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- Other Machinery Parts
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Halnn Superhard Materials Co.,Ltd
China
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| Product name | The reasons of CBN inserts cracking from Halnn Superhard | Certification | - |
|---|---|---|---|
| Category | Other Machinery Parts | Ingredients | - |
| Keyword | cbn , cbn insert , cbn inserts , halnn superhard | Unit Size | 200.0 * 120.0 * 60.0 mm |
| Brand name | Halnn | Unit Weigh | 200 mg |
| origin | China | Stock | - |
| Supply type | - | HS code | - |
Product Information
The reasons of CBN inserts cracking from Halnn Superhard
CBN Cutting tools abnormal cracking is what customers most boring, which will increase Processing cost,workpiece scrap or reworking, lower the processing efficiency and other problems.Especially CBN insert with high price, cracking phenomenon will cause lots of waste, so it is so important to choose the most suitable CBN inserts.
Halnn superhard material summarized some chipping reasons as following:
CBN inserts itself performance
The overall sintering between main CBN granule and suited binder will exit a high tensile strength,which is the advantages of common CBN inserts when rough machining work piece.Except the high purity require when producing CBN inserts, the CBN(cubic boron nitride) micro powder also need deoxidized and other many process,and test its bulk density,this is just the most important reason for different quality CBN inserts in the market.In addition,the synthesis process directly decide the dimension and size of the poly-crystalline grain when processing CBN inserts.
1.The selection of CBN inserts
The cutting depth of soldering CBN inserts should be controlled within 0.3mm or even less to ensure using safety, any manufacturers compound CBN inserts can not make sure there is no chipping when facing interrupted turning condition,this condition must choose Solid CBN inserts.
2.The selection of the CBN inserts type
The impact resistances comparison with the same grade CBN insert:round insert,commonly 25°,45°,75°,83°,90°(the inserts angle after install ),and the width and angle of CBN inserts itself negative chamfer also affect the CBN cutting tools strength.
3.Cutting parameter influence
Reduce the feed rate is the most reliable method from the cutting force;we need turn down the revolving speed when interrupted turning or machining both long and thin shaft.
4.CNC lathe reason
The machinery overall system rigidity must be high,In order to avoid shaking during machining;we also need avoid the jammed when rough machining.
5.The extend length of the inserts arbor
If the inserts arbor extend long length,it will have the risks on shaking and chipping,the extend length need within the arbor size.
6.The inserts arbors quality reason
Good quality inserts arbor has a excellent heat-conducting property, high machine rigidity, seismic performance;although the price is a little higher,but the total processing cost will not have a big change,and it will reduce the inserts unnecessary waste.
8.The cutting fluid
Cooling liquid can be used when rough machining gray cast iron or other materials, but the thermal stress will cause CBN inserts cracking risk.
In some conditions,CBN inserts own impact resistance and heat-conducting property are not contradictory.For example,YG series cutting tools have a good impact resistance,but there are a strong cutting resistance will also make the inserts cracked,this condition will mislead the researchers and customer thinking that the inserts doesn't have a good impact resistance,but the actually reason is the cutting tools was not good wear resistant.
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- President
- Angels
- Address
- Research 5# building B site 21-11 room,the international univeristy science park,Zhengzhou Hi-tech District,Henan Provience,China
- Product Category
- Machinery Tools
- Year Established
- 2002
- No. of Total Employees
- 51-100
- Company introduction
-
The predecessor of HALNN Superhard material Co.,Ltd. is country Henan Superhard Material Institute. So the turning inserts and grinding inserts from halnn are all produced strictly,have a good quality.HALNN superhard company specialized in the production of CBN cutting tools/PCBN inserts/solid CBN inserts/hard turning tools and other super hard material products for turning/machining all kinds of wear resistant cast iron/cast steel, harden steel materials in this industry. The main products PCBN cutting tools and solid CBN cutting tools have obtained several practical patents, especially in interrupted cutting of hardened steel, Hi-Cr white cast iron etc,(such as:gear bearing,rolls/roller,ball screw,auto parts,brake disc,brale drum,etc) leading the world class level and enjoy a high reputation over the academia circles of super hard cutting tools. As a pioneer of Chinese super hard cutting tools, HALNN is the most famous brand on hard turning and high speed machining the hard material.
Based on the State Key Laboratory of super hard materials and Henan University of Science and Technology, HALNN superhard company established its own R&D Center of super hard cutting tools, has undertaken and completed the national key project of “production-study-research” and the project of science and technology research on CBN products, and is implementing the national demonstration projects& the plan projects of “gem grade diamond products”.
History:
In 2002, HENAN Super Hard Research Institute was established, CBN cutting tools and high grade diamond as the main research direction. There has 2 Ph.D, 3 professors, 5 associate professors, 12 R&D Doctor and master, owns cubic pressing machine and laser thermal conductivity meter and other large-scale equipment, with a total value of more than 18 million CNY.
At the end of 2003, BN-K1 CBN cutting tools used for machining high chromium white cast iron and chilled cast iron was promoted.This grade CBN inserts can both roughing and finishing the casting workpiece.
In 2004, BN-H10 CBN cutting tools used for finishing harden steel was promoted, and has been in Chinese PCBN cutting tools area leading position.
And the first company promoted the concept of roughing used “solid CBN inserts” in China, solid CBN inserts in roughing high chromium white cast iron rough areas made the industry unanimously approved. And as CBN cutting tool technology transfer and enterprise combining research cooperation mode, has made tremendous contributions for our super hard materials industry.
In 2005, BN-S10 CBN cutting tools used for harden steel interrupted cutting was promoted, breaking the myth of CBN cutting tools couldn’t be used for heavy interrupted turning harden steel with large allowance, which is the world breakthrough of CBN cutting tools industry.
In 2007, BN-S30 solid CBN inserts professional used for roughing gray cast iron was promoted, breaking other countries CBN cutting tools in the field of high speed machining gray cast iron monopoly.
In 2010, the first 1.7 carats Blue gem grade diamond in China was developed by Halnn. So far, Halnn superhard won 25 national patents.
In 2011, Halnn superhard material company was awarded one of the best company in cutting tools industry in China.
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