Roll machining with solid CBN
2018.08.27More SuperHard Products Co., Ltd26
Rolls are almost universally used in every manufacturing process in the world. the roll is the main part of the rolling machine, will often add some metal element (such as chromium, nickel ... ) in the processing in order to make sure the usage lifetime and obtain the rolls durability. the materials of the rolls include, cast steel roll, cast iron roll, carbide roll and ceramic roll, etc.
Cutting Parameters Of Roll Turning
During roll turning, cutting edge is to retain its sharpness over an extended period. It is also required to retain the toughness of the insert so that there is no failure of the tool on account of turning large roll diameters.
Roll Material Hardness (HS) Cutting Conditions
V (m/ min) F (mm/ Rev) D (mm)
carbide HRA81-86 5 - 30 0.1 - 0.3 0.1 - 0.5
high speed steel Over 85 20 - 50 0.1 - 0.3 0.1 - 2.5
high speed steel 70 - 85 50 - 80 0.1 - 0.4 0.1 - 3.0
die steel HRC 55 - 62 60 - 120 0.1 - 0.3 0.1 - 0.5
Ni Grain Iron 70 - 85 40 - 100 0.1 - 0.5 0.2 - 3.0
High Chromium Iron 70 - 85 40 - 100 0.1 - 0.5 0.2 - 3.0
65 - 85 40 - 100 0.1 - 0.5 0.2 - 3.0
Nodular Iron 40 - 70 50 - 120 0.1 - 0.5 0.3 - 3.0
Steel Based Adamite 40 - 60 50 - 130 0.1 - 0.5 0.2 - 3.0
The tool materials for machining rolls include carbide insert, ceramic inserts and cbn inserts. CBN insert is the hardest tool material for the processing ferrous metal materials and is the preferred tool for heavy duty cutting rolls.
More SuperHard company PCBN inserts have excellent performance, high fracture toughness and cutting edge strength , good balance of wear and fracture resistance in processing gray cast iron,nodular cast iron,hardened steel and sintered metal, etc.
HSS Roll Machining Case
HSS roll machining
Workpiece: HSS High Speed Steel RollRCMX 120700 solid CBN
Position: Roll Slot
Hardness: HSD 80
Solid CBN Model: RCMX 120700 YS10010
Cutting Type: Dry Cutting
Cutting Parameter: AP=1.7mm, Fr=0.2mm,Vc= 70m/min
Inserts Materials Tool Life Cutting depth Speed (m/min)
Solid CBN 24 slots/ edge 1.7 mm 70
Carbide Inserts 6 slots/ edge 0.6 mm 16
Tool life of solid CBN is 4 times that the carbide inserts. The efficiency improve 6 times
Cast Iron Roll Machining Case
cast iron roll machining
Workpiece : Cast Iron RollRNMN solid CBN
Solid CBN Model: RNMN251000
Cutting Type: Dry Cutting
Cutting Parameter: AP=4mm, Fr=0.5mm, Vc=55m/min
The tool life of solid CBN is 6 times that of ceramic inserts.
More SuperHard company solid cbn inserts for machining roll include, RCMX060500, RCMX090700, RCMX120700, RNMN090700, RNMN120700, RNMN201000, SNMN090308, SNMN120712,SNMN150704, etc. other tools for machining roll, such as pcd notching, ceramic inserts and cbn notch insert, etc