Machining cast iron rolls and turning hardened steel rolls with Halnn Solid CBN inserts The mill roll is the main part of the rolling machine industry, the performance of the rolls depend the efficiency of the rolling mill, the consumption cost affect product quality and production costs. While roll itself has high hardness, especially large casting roll surface exist sand, porosity and others casting defects, therefore, we put forward higher requirements for turning insert, it not only needs good wear resistance, but also meets strong impact toughness.
Halnn, as a professional Brand Manufacturer of researching and producing CBN Insert, always devote to offering service for manufacturers in automotive, steel, petroleum, chemicals, machinery ect industry, accumulate lots of successful application case and famous customers.
The difficult process problem of cast iron roll is casting defects and large margin, it puts higher requirements for the impact toughness of the inserts, we recommend BN-K1 solid cbn insert, which belongs to solid CBN insert, and mainly used in casting and powder metallurgy industry, and can be used for both finishing and roughing. When BN-K1 Solid CBN inserts rough machining alloy rolls, it will have good chipping resistance and fracture-resistance in a high temperature. Application Case as follows, Part: cast iron roll Hardness: HSD80 Insert grade: BN-K1 RNMN200800 Cutting Type: Dry Cutting Cutting parameter: ap=4mm, fr=1mm/r, vc=55m/min Insert material
Feed rate(mm/r)
Lifetime/cutting edge
Failure mode
Halnn BN-K1
1
3
Normal wear
Ceramic insert
0.5
0.5
Chipping