How to choose cutting tool for gray cast iron with casting d
1. The common casting problems of the cast iron in the casting process
Gray cast iron production process include melting casting, modeling core, sand processing, etc., which will result in casting defects, it also include sand quality except above defects.
It will cause stomata, sticky sand, sand, trachoma, iron beans (small holes in the stomata) problems in the sand process.
It will cause stomatal, shrinkage, hot/cold crack, slag ect smelting pouring process problems in the Smelting pouring process.
It will cause stomatal, trachoma, sand, sticky sand, deformation, shrinkage problems and so on in the process of producing the core.
It will result in surface quality failure, cold cracking, deformation in the cleaning process.
2. What can we do when meet these gray cast iron parts with defects?
If Gray cast iron parts have serious casting casting defects, they will be directly scrapped. But more of them exist small casting problems, which will finally lead to a number of parts of hardness higher, or have some other problems, such as sand, porosity and other defects. For above problems, common traditional cutting tools are not suitable for processing such products.
Halnn, as a professional manufacturer of cubic boron nitride cutting tools, devote to offering cutting tools and solutions for processing high hardness and difficult to process materials. Since establishment, there are many gray cast iron manufacturers finding us to help them solve the problems.
Specific for different processes, Halnn will recommend to choosing different cutting tools.
For roughing process, Halnn will recommend you to choose CBN Inserts BN-S30, which belong to solid polycrystalline cubic boron nitride insert, not only can be used for processing high hardness gray cast iron parts, but also can be used for roughing the workpiece with large working allowance to improve the working efficiency and the impact resistance.
For the finishing process, we recommend to using Halnn PCBN inserts BN-K20, small margin will guarantee a high degree of smoothness and parallelism.
If the manufacturer wants more wear-resistant products, Halnn super-hard tool engineers will recommend BN-S300 solid cbn inserts, which belong to solid polycrystalline cubic boron nitride insert, the durability is higher than BN-S30 grades, impact toughness is lower than the BN-S30 solid cbn inserts.