Preventing burrs and tool marks on workpiece surfaces is a key factor in ensuring final product quality in mechanical machining. Here are some effective recommendations to minimize these defects during processing:

1. Select Suitable Tools
   Use cutting tools with sharp edges and smooth surfaces to reduce the tendency for burr formation. Proper tool selection minimizes friction between the tool and workpiece, thereby decreasing the risk of burrs.

2. Optimize Cutting Parameters
   Set appropriate cutting speed, feed rate, and depth of cut according to the workpiece material. Improper parameters—whether too high or too low—can lead to surface burrs. Conduct trial cuts and fine-tune parameters to determine optimal machining conditions.

3. Apply Proper Coolant
   Coolants serve both cooling and lubricating functions, reducing friction and heat generation. Selecting the right cutting fluid and ensuring consistent supply helps lower surface temperature, slow tool wear, and prevent burr formation.

4. Maintain and Sharpen Tools Regularly
   Keep cutting tools sharp through regular grinding and maintenance. Dull tools tend to deform material and generate burrs. Replace worn tools promptly and maintain blades in good condition.

5. Implement Chip Removal Systems
   Chip removal devices help clear away machining chips in real time, preventing them from adhering to the workpiece and causing burrs. Maintain a clean working area to ensure effective chip evacuation.

6. Perform Pre‑Processing Treatments
   Before machining, properly prepare the workpiece by removing initial burrs, rust, or other surface imperfections. This reduces the likelihood of burr generation in subsequent operations.

7. Utilize Vibration‑Assisted Equipment
   For certain materials, vibration‑assisted machining can effectively reduce frictional resistance and suppress burr formation. This method has shown good results in specific specialized processes.

8. Apply Precision Finishing Processes
   For workpieces requiring high surface quality, employ precision machining methods such as grinding or polishing. These processes further enhance surface finish and eliminate burrs and tool marks.

By comprehensively applying these measures, burrs and tool marks on workpiece surfaces can be effectively minimized, leading to improved machining quality and efficiency.