What factors will affect the surface roughness of lathe parts
Release time:
2022-12-08
What are the factors that affect the surface roughness of parts processed by large CNC lathes?
1. Geometric factors: From the geometric perspective of surface roughness, the shape and geometric angle of the tool, especially the radius of the tool tip, main deflection angle, auxiliary deflection angle, and feed rate in cutting parameters, have a significant impact on surface roughness.
2. Physical factors: From the perspective of the physical properties of large-scale CNC lathe machining, the rounded corners of the cutting edge and the extrusion and friction behind the tool cause plastic deformation of the metal material, seriously deteriorating the surface roughness. When using a large CNC lathe to process plastic materials, high hardness chip nodules are easily formed on the front surface of the cutting tool. It can replace the front cutting surface and blade for cutting, allowing the geometric angle and back cutting amount of the tool to be changed. The contour of the chip nodules is very irregular, so the surface of the workpiece constantly changes the depth and width of the cutting. Some chip nodules are embedded on the surface of the workpiece, increasing the surface roughness. During the cutting process, vibration is generated, which increases the surface roughness parameter value of the workpiece.
Processing factors: From the perspective of processing technology of large CNC lathes, the impact on the surface roughness of workpieces is mainly related to tool factors, workpiece material factors, and CNC machining conditions.
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