Advantages of machining gray cast iron parts with cbn insert
All we know, cbn inserts are mainly used for machining high hardness cast iron and hardened steel industry, and common cast iron also will use cbn inserts. Especially for rough machining with CNC Lathe, cbn inserts are more widely used.
Gray cast iron has low hardness, traditional cutting tools can machine, why will we choose cbn inserts which have much expensive price? The following will tell you the reasons:
(1) Gray cast iron are mainly used for CNC Lathe and automotive industry, most of them are bulk production, it required strictly on the processing efficiency, traditional cutting tools also can machine gray cast iron parts, but it has low efficiency, which only suit for small quantity cast iron parts.
(2) In modern times, many manufacturers with bulk production cast iron parts, they have change the common lathe to CNC lathe, many of them know that traditional cutting tools can’t be used for high speed turning, it will wear seriously when the linear speed is above 350m/min, which will affect the working efficiency and the surface quality.
(3) Cbn inserts have high hardness, excellent wear resistance and the linear speed can reach 1000m/min when finish turning gray cast iron parts, also it can make sure the surface quality and the roughness requirements. CBN Inserts are the right cutting tools for machining gray cast iron parts with bulk production.
Halnn, as the machinery industry solutions provider and environmental advocates, continue to innovation, enhance the core competitiveness of products, clients gradually expanded to various mechanical industries. Halnn has been providing customers high-quality, high-performance tool products which can quickly meet the increasingly diverse needs. Halnn always committed to making the world no longer have difficult to machine materials.
Halnn already researched 3 grades solid cbn inserts depending on the process and the precision requirements of processing cast iron parts, as follows:
As the machining process,
(1) Roughing Process, we choose solid cbn inserts BN-S30
Advantages: Large cutting depth, excellent wear resistance, long tool life.
(2) Semi-finishing Process, we choose solid cbn inserts BN-S300,
Advantages: Insert Tips sharp, high precision, long tool life,
(3) Finishing Process, we choose Brazed PCBN Inserts BN-K20
Advantages: High cutting speed, more tips, more flexible.
Except above grades, Halnn also researched cutting tools which can both machine 2 sides of the cast iron parts at the same time. For example, when machining brake disc, it will need change the insert twice if using common cutting tools, but if use Halnn cbn inserts, it can install only 1 time, and can machine 2 end surface at the same time, it not only can reduce 50% processing time, but also make sure excellent Parallelism. It will have higher processing efficiency.
We will share you the application case for finish machining gray cast iron parts brake disc with Halnn BN-S300 solid cbn insert.
Machining Part:Brake Disc
Machining Process:Finishing
Machining Part:End Surface
Insert Models:BN-S300 SCGN090408
Machining Type: processing 2 sides at the same time,dry cutting
Cutting Data: ap=0.25mm,Fr=0.2mm/r,Vc=800m/min
Machining Effect:
|
Insert Models |
Insert Models |
Linear Speed |
Tool Life/blade |
|
Halnn BN-S300 |
SCGN090408 |
800m/min |
300 |
|
Coating Carbide Insert |
CNMG120408 |
300m/min |
15 |
If you would like to know more details, please click http://www.halnncbn.com/Products/solid_cbn_inserts/ ,Or feel free to contact with us info@halnntools.com, whatsapp:+8615617635382