Reason, Effects And Improvement Of Ripples On The Precision Machined Parts Surface

DALIAN, China - Feb. 25, 2024 - PRLog -- The causes of ripples on the surface of workpieces

Insufficient stiffness of the machine:

Machine need to withstand a large amount of cutting force during processing. If the stiffness of the machine is not enough, it will cause the vibration of the machine to intensify, leading to the appearance of ripples on the surface of the workpiece. This phenomenon is particularly evident when processing thin-walled parts and long and thin rods.

Uneven clamping force:

Clamping is an essential part of mechanical processing, and uneven clamping force can easily lead to ripples on the surface of the workpiece. Excessive or uneven clamping force can generate bending stress, resulting in ripples during processing.

Excessive tool wear:

The degree of tool wear has a significant impact on the machining results. If the tool wears excessively, it can lead to an increase in cutting force and even unstable cutting, resulting in ripples on the surface of the workpiece.

Improper cutting conditions:

Improper cutting conditions are also an important reason for the appearance of ripples on the surface of the workpiece. For example, if the cutting speed is too fast or the feed rate is too large, it can easily lead to serious cutting vibration, which in turn can cause ripples on the surface of the workpiece.

Scratches on the machined surface:

If there are scratches or other defects on the surface of the workpiece, ripples are likely to appear during processing. Therefore, before processing, the workpiece should be cleaned and inspected to ensure the flatness of the machining surface.

Process issues:

Uneven wear of the cutting edge, excessive cutting force, and fast feed rate can all cause ripples on the surface of the workpiece.

Equipment issues:

Insufficient rigidity of the machine tool, damage to the spindle bearings, insufficient tool clamping force, unstable tool speed, and other factors may also cause surface ripples on the workpiece.

Material issue:

If the hardness of the processed material is uneven, internal stress is too high, and other factors can cause ripples on the surface of the workpiece.

The Effect of Surface Ripples on Parts

Impact the appearance quality of the parts.

The ripples on the surface of the parts can make their appearance appear uneven, affecting the overall aesthetics. Especially in some high demand products, such as automotive parts, precision instruments, etc., surface ripples can be considered defects, reducing the market competitiveness of the product.
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