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How practical is rolled pipe?

In fact, the work of rolling pipes is simply to reduce the surface roughness of the workpiece, but many people do not know how honing and rolling pipes work. Let's briefly understand how rolling pipes work.
        When the rolling pipe is working, there will be a sand bar. A lot of abrasive grains will be placed on the sand bar. If enough pressure is given to these abrasive grains, the rolling tube will rub against the surface of the workpiece at a certain speed. This kind of extrusion and side hanging can finely reduce the surface roughness of the workpiece.
        Also, when the sand bar is running and moving up and down, those abrasive grains will form a certain movement trajectory on the surface. The cutting speed of the honing tube is relatively low, which can greatly improve the honing efficiency.
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