Halnn provide different CBN tool solutions for Roll industry
Halnn Superhard CBN tools are mainly used for machining parts with high hardness and difficult processing rolls, such as rebar rolls, wire rolls, sheet rolls, etc. According to the material of the roll, hardness and processing conditions, Halnn solid CBN tool is recommended. In the metallurgical steel industry, the most difficult to process is high-speed steel rolls（HSS）, Halnn has more than 60% of the global CBN tool market share, and has good customer reputation and brand value in the overseas roll industry, especially in high-speed steel rolls and hard alloys rolls, high-alloy high-hardness cast iron roll and its repair processing, with rich CBN tool manufacture experience, the following are Halnn CBN tools solutions for rolls industry:
|
Roll material |
Roll hardness |
Recommended cutting parameters |
|
Alloy cast iron |
HSD60-85 |
BN-K1 |
Vc=40-60m/min，ap=2-10mm，Fr=0.5-1.5mm/r |
|
Vc=60-90m/min，ap=1mm，Fr=0.5-1.0mm/r |
|
Casting semi-steel |
Vc=30-60m/min，ap=1-10mm，Fr=0.5-1.5mm/r |
|
Vc=50-80m/min，ap=1mm，Fr=0.5-1.0mm/r |
High carbon semi-steel
|
Vc=35-50m/min，ap=3mm，Fr=0.5-1.5mm/r |
|
Chilled cast iron |
Vc=25-50m/min，ap=1-10mm，Fr=0.5-1.5mm/r |
|
Cast high speed steel |
HSD85-92 |
BN-S10 |
Vc=20-45m/min，ap=4mm，Fr=0.5-1.5mm/r |
|
Tungsten carbide roll ring |
HRA88 |
HLCBN |
Vc=10-15m/min，ap=1mm，Fr=0.3-0.7mm/r |
|
Forged steel cold roll |
HRC65 |
BN-S20 |
Vc=90m/min，ap=0.2-7mm |
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Halnn CBN tools drawing for machining Rolls |
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(1) Machining High Nickel-Chromium alloy cast iron roll: Halnn BN-K1grade solid CBN tool can be used for large-capacity cutting to
improve production efficiency, while cutting performance is stable and cost-effective.
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Halnn BN-K1 grade CBN tool machining High Nickel-Chromium cast iron Rolls |
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Roll material：High Nickel-Chromium cast iron roll (HSD80)
Tool type：BN-K1 RNMN200800
Cutting parameters：ap=4mm，Fr=0.7mm/r，Vc=45m/min
Processing method：Dry cutting |
|
Tool materials |
Cutting speed |
Tool life |
Failure modes |
|
Halnn BN-K1 grade CBN tool |
45m/min |
3pcs |
Normal wear |
|
A brand of CBN tool |
35m/min |
2pc |
Collapse damage |
(2) Machining High-speed steel roll: Halnn BN-S20 grade CBN tool can be used for machining High-speed steel roll with double the efficiency.
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Halnn BN-S20 grade CBN tool machining High-speed steel roll |
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Roll material：High-speed steel roll(Hardness HSD90)
Tool type：BN-S20 RCMX120700
Cutting parameters：Fr=0.2mm/r，Vc=35m/min
Processing method：Dry cutting |
|
Tool materials |
Tool life |
Failure modes |
|
Halnn BN-S20 grade CBN tool |
25 Groove/edge |
Normal wear |
|
A brand of CBN tool |
12 Groove/edge |
Collapse damage |
(3) Machining Infinite chilled cast iron roll: Halnn BN-S20 grade CBN tool is twice as efficient as traditional cutting tools and the tool life is increased by 3 times.
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Halnn BN-K1 grade CBN tool machining Infinite chilled cast iron roll |
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Roll material：Infinite chilled cast iron roll ,Hardness HSD67
Tool type：BN-K1
Cutting parameters：Fr=0.5mm/r，Vc=66m/min，ap=2mm
Processing method：Dry cutting |
|
Tool materials |
Efficiency |
Tool life |
|
Halnn BN-K1grade CBN tool |
2 times |
3 times |
|
A brand of traditional carbide tool |
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