CBN for high carbide high vanadium?

huntyukon

huntyukon

Joined
Dec 30, 2023
Messages
185
Hello folks,
I gotta ask you guys another question. I’m wondering if CBN stones will work well on steels like s90v, s110v, magnacut, m390 and the likes? Will diamond be a lot faster than CBN? Thanks.
 
For the steels you mentioned, elbors will work fine.
In my experience, elbor and diamond work pretty much the same. Although there is a popular opinion that elbors supposedly work softer than diamonds due to the shape of the crystals, diamond has fewer faces, so it works more aggressively. But in the technical literature, I found only that elbors are used in the case when high temperatures occur during processing.
There is a nuance when working with diamonds or elbors: if rough stones are used to form the edge, they will form deep furrows that will be very difficult to destroy with subsequent stones. Therefore, it is better to form the edge with medium stones, then the lines will not be so deep and it will be easier to remove them.
 
vlodko_lviv said:
For the steels you mentioned, elbors will work fine.
In my experience, elbor and diamond work pretty much the same. Although there is a popular opinion that elbors supposedly work softer than diamonds due to the shape of the crystals, diamond has fewer faces, so it works more aggressively. But in the technical literature, I found only that elbors are used in the case when high temperatures occur during processing.
There is a nuance when working with diamonds or elbors: if rough stones are used to form the edge, they will form deep furrows that will be very difficult to destroy with subsequent stones. Therefore, it is better to form the edge with medium stones, then the lines will not be so deep and it will be easier to remove them.
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Thank you so much for your response. I have heard a lot about CBN stones lately and so was wondering how well it worked on high carbide high vanadium steels. Thank you for clearing that up
 
For steels with a lot of vanadium, such as c90v, c110v, c125v, rex121, v10, v15 and others, from my experience, ONLY diamonds or elbors can be used to form an edge. Then you can work with silicon carbide, aluminum oxide does not work, or to be more precise, it works very, very slowly
 
vlodko_lviv said:
For steels with a lot of vanadium, such as c90v, c110v, c125v, rex121, v10, v15 and others, from my experience, ONLY diamonds or elbors can be used to form an edge. Then you can work with silicon carbide, aluminum oxide does not work, or to be more precise, it works very, very slowly
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Would diamond work better tha cbn though?
 
Another question is which diamonds you will use: on a galvanic bond, or on a formaldehyde bond, or on a copper-tin bond. Diamonds on a galvanic bond work the fastest, but they leave the deepest furrows. They work a little slower on a copper-tin connection, but they have a very large resource, they must be properly prepared before work. Formaldehyde bond works the most delicately, it should be used in the final stages of sharpening, its resource is significantly less than that of copper-tin bond
Formaldehyde bond is otherwise called resin bond
 
If you want to take a full set of diamonds or elbors, then at the initial stages you should take a copper-tin bond, and then a resin bond, for example: 200/160, 100/80, 50/40 - copper-tin, 20/14, 10/7, 5/3, 3/2 - resin bond
 
CBN and diamond at a practical level should be considered more or less the same. As the previous poster said, resin bonded diamond/CBN will generally be better for refinement at the expense of some speed. Metallic bonded diamond/CBN is the opposite. I don't know much about hybrid bonds.
 
vlodko_lviv said:
If you want to take a full set of diamonds or elbors, then at the initial stages you should take a copper-tin bond, and then a resin bond, for example: 200/160, 100/80, 50/40 - copper-tin, 20/14, 10/7, 5/3, 3/2 - resin bond
Click to expand...
Thank you for all this info! Your input helped me a lot. Much appreciated.
 
chalby said:
CBN and diamond at a practical level should be considered more or less the same. As the previous poster said, resin bonded diamond/CBN will generally be better for refinement at the expense of some speed. Metallic bonded diamond/CBN is the opposite. I don't know much about hybrid bonds.
Click to expand...
Thank you C chalby .
 
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