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What is the constant pressure of large-diameter thick-walled honing pipes?
What is the constant pressure of large-diameter thick-walled honing pipes?
1. In the shedding cutting stage, this kind of constant-pressure quilting starts. Due to the rough hole wall, the contact area between the oilstone and the hole wall is very small, the contact pressure is large, and the protruding part of the hole wall is quickly worn away. Due to the high contact pressure on the surface of the whetstone and the wear of the whetstone binder by chips, the bonding strength between the abrasive grains and the binder decreases. Therefore, some abrasive grains fall off on their own under the action of cutting pressure, and new abrasive grains are exposed on the whetstone surface, which is self-sharpening of the whetstone.
2. In the crushing and cutting stage, as the quilting progresses, the surface of the hole becomes brighter and smoother, the contact area with the oil stone becomes larger and larger, the contact pressure per unit area decreases, and the cutting efficiency decreases. At the same time, the chips cut are small and fine, and the wear of these chips on the binder is also very small. Therefore, the whetstone abrasive grains fall off very little. At this time, grinding does not rely on new abrasive grains, but cutting on the abrasive grains. Therefore, the load on the abrasive grains is very large, and the abrasive grains are easy to break and collapse to form new cutting edges.
3. In the clogging cutting stage, when honing continues, the contact area between the whetstone and the hole surface becomes larger and larger. Very fine chips accumulate between the whetstone and the hole wall and are difficult to clean, causing the whetstone to become clogged and become very smooth. Therefore, the cutting ability of whetstone is low, which is equivalent to polishing. If you continue to quilt and the whetstone is seriously clogged and adhesive blockage occurs, the whetstone loses its cutting ability and becomes severely heated, and the accuracy of the hole and surface roughness will be affected. At this point, honing should be completed as soon as possible.
Please indicate the source when reprinting:http://www.fdzsw.cn
1. In the shedding cutting stage, this kind of constant-pressure quilting starts. Due to the rough hole wall, the contact area between the oilstone and the hole wall is very small, the contact pressure is large, and the protruding part of the hole wall is quickly worn away. Due to the high contact pressure on the surface of the whetstone and the wear of the whetstone binder by chips, the bonding strength between the abrasive grains and the binder decreases. Therefore, some abrasive grains fall off on their own under the action of cutting pressure, and new abrasive grains are exposed on the whetstone surface, which is self-sharpening of the whetstone.
2. In the crushing and cutting stage, as the quilting progresses, the surface of the hole becomes brighter and smoother, the contact area with the oil stone becomes larger and larger, the contact pressure per unit area decreases, and the cutting efficiency decreases. At the same time, the chips cut are small and fine, and the wear of these chips on the binder is also very small. Therefore, the whetstone abrasive grains fall off very little. At this time, grinding does not rely on new abrasive grains, but cutting on the abrasive grains. Therefore, the load on the abrasive grains is very large, and the abrasive grains are easy to break and collapse to form new cutting edges.
3. In the clogging cutting stage, when honing continues, the contact area between the whetstone and the hole surface becomes larger and larger. Very fine chips accumulate between the whetstone and the hole wall and are difficult to clean, causing the whetstone to become clogged and become very smooth. Therefore, the cutting ability of whetstone is low, which is equivalent to polishing. If you continue to quilt and the whetstone is seriously clogged and adhesive blockage occurs, the whetstone loses its cutting ability and becomes severely heated, and the accuracy of the hole and surface roughness will be affected. At this point, honing should be completed as soon as possible.
Please indicate the source when reprinting:http://www.fdzsw.cn