CBN Inserts for high speed cutting gray cast iron parts
Halnn Superhard, as the professional cbn inserts brand, has been committed to complete tool products and program design in high hardness cutting and high-speed cutting field, is a company which include scientific research, manufacturing and sales, has been to provide customers with professional, efficient tool, tool solutions, owns many products that have been trusted by the customers.
Halnn Superhard not only has a high reputation in high hardness materials field, but also has professional and efficient cutting tools grade in gray cast iron field. Gray cast iron is widely used in automobiles, machine tools and other fields, mostly in mass production, and the requirement are gradually increased.
Gray cast iron use carbide cutting tools before, the hardness is generally between HB170 and HB210, the manufacturers usually use common lathe machine the gray cast iron at beginning, because it didn’t require the working efficiency, only need to make sure the dimension. But with the increase of the gray cast iron parts and the raw materials costs, the manufacturers need to improve the working efficiency and lower the costs that can make sure their profit.
In order to improve the working efficiency, the manufacturers usd CNC Lathe machine the gray cast iron parts instead of the common lathe, which not only improve the working efficiency, but also obtain good roughness. But there is one problem, when they use CNC lathe, the carbide insert will wear seriously, and it needs to change the tools frequently. The costs are also very high.
Specific for this problem, Halnn researched new cbn inserts grade BN-S30 solid cbn inserts and pcbn inserts BN-K20 for high speed machining gray cast iron parts. It helped the manufacturers solve their problems and obtain good profict, Halnn also obtain their trust.
BN-S30 belong to solid cbn inserts, which can be used for both roughing and finishing process, the linear speed can be 200~700m/min, the cutting depth will be 1~10mm, the feed rate will be 0.2~1mm/r.
When finish turning gray cast iron parts, it can choose Bn-K20 pcbn inserts, the linear speed can be 300~1500m/min, the cutting depth will be within 0.3mm, the feed rate can be 0.05~0.3mm/r.
The cutting data also can be adjusted depending on the Machine rigidity, if it is not enough, it can use high cutting speed, large feed rate and large cutting depth, otherwise reduce. The following is one application case for machining gray cast iron parts brake drum with Halnn BN-K20 PCBN Inserts;
Machining Process: Finish Turning the end surface
Insert Grade: BN-K20 WNGA080408
Cutting Parameter: ap=0.3mm,Fr=0.25mm/r,Vc=350m/min
Machining Effect:
Comparing with other pcbn inserts, the roughness with Halnn cbn inserts can reach Ra1.0, others can be only Ra2.0. The tool life of Halnn cbn inserts will be about 1.5~2 times than other pcbn insert.
If you would like to know more application case on machining gray cast iron parts, please click http://www.halnncbn.com/Cases/Automotive_industry/, or feel free to contact with me directly:info@halnntools.com, or whatsapp:+8615617635382