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Help CenterSaiwant Inner Hole Diamond Roller Tool for Improving Surface Finish of Small Holes, Dia50-in-r1.0-zb25
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Savant Internal Diamond Rolling Tool, Extrusion Tool, Rolling Head
Product Introduction:
The main accessories of SAVANT Diamond (Diamond) Rolling Tool are made of imported materials. It can be used on lathes to roll the outer circle, inner hole (greater than a certain diameter), end face, etc. Except for the inner hole, it is not limited by the diameter size and has wide applicability.
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Usage parameters (The following parameters should be determined according to the specific situation in actual processing)
Workpiece allowance: 0.01mm
Rolling amount: 0.01 - 0.05mm
Lubrication: Emulsion or oil; Filtered lubricant (
Surface of the previous process: The surface roughness reaches below Rz15 μ m
Workpiece hardness: Below HRC65
Cutting speed: 100m/min
Feed speed: 0.05 - 0.2mm/rev
Smooth Surface
It can improve the surface finish by 2 - 3 grades (related to the previous process). For example, if the surface finish of the previous process is Ra3.2, our diamond rolling tool can generally achieve Ra0.4 - Ra0.8.
Usage Method
1. Install the diamond tool on the lathe tool post to align the center of the diamond ball with the center of the workpiece.
2. Set the load of the built-in spring in the tool according to the material and hardness of the workpiece to be processed.
3. Rotate the workpiece, manually make the diamond ball contact the workpiece surface, perform radial feed, visually inspect the surface roughness, perform a trial machining section with axial feed, visually inspect or measure the roughness value with an instrument, and adjust the indentation amount according to the roughness value.
4. Rotate the workpiece and perform machining with the feed amount of the trial machining from the front of the machining part (about 1mm).
5. Stop the feed when reaching the machining end position, let the diamond ball leave the workpiece, and end the machining.
Principle of Diamond Burnishing
Under the microscope, during the cutting process of the workpiece, the tool tip will leave tool marks like steps on the surface. The diamond slides on the workpiece surface under the action of the spring force, overcoming the yield point of the material, causing plastic deformation on the material surface, making the high points of the tool marks flow into the low points, thus obtaining a flat and smooth mirror surface. During the burnishing process, the material will be hardened due to plastic deformation, thus improving the fatigue strength of the workpiece surface. To achieve the burnishing effect, the surface finish of the previous cutting process of the workpiece should be within about Ra3.2um.
Advantages:
1. Burnishing does not produce cutting chips compared with grinding and honing operations.
2. The surface finish of the workpiece after burnishing can reach a roughness of Rz1.0 or less.
3. After rolling, the control of dimensional accuracy is improved, and the tolerance can be adjusted within a smaller range.
4. The hardness is increased after surface burnishing.
5. The fatigue life is improved after burnishing.
6. The burnishing tool can eliminate the residual tool marks and small surface defects after burnishing.
7. The workpiece surface of the burnishing tool can reduce friction, lower the noise level, and enhance the anti-corrosion and anti-rust ability.
Precautions
When starting to test the cutting tool, the cutting speed can be reduced for testing, and the feed rate can remain unchanged. When machining under conditions unfavorable for rolling, such as high-hardness materials or insufficient lubrication, the cutting speed should be reduced.
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