How to achieve Ra0.2 of surface roughness on pulley crank shaft of car engine with OD stepped shaft burnishing tool?

How to achieve Ra0.2 of surface roughness on pulley crank shaft of car engine with OD stepped shaft burnishing tool?

The customer wants to polish the surface pulley crank shaft of car engine, which achieves Ra0.2 of surface roughness. Because good surface roughness will reduce wear on the workpiece, and then improve work efficiency. Requirements The surface roughness achieves Ra0.2μm after rolling burnishing. 1) Workpiece Material: Gray Cast Iron 2) Workpiece Diameter: 41mm 3) Workpiece Tolerance: 25μm 4) Workpiece Hardness: 18-22HRC 5) Shank Size of Tool: Morse Taper #2 Solution   As the customer’s requirements, RBT provides the OD stepped...

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