3081U Drilling in POM Burr removal and a stable process even with cross-holes

Challenge

A customer in the general mechanical engineering sector involved Silmax to improve drilling quality and process stability on several POM parts. The main issues were well known:

• Very thick burrs, which required manual deburring
• Stringing on the entry and exit edges of the hole
• Abrasive material behavior, impacting tool life
• Further deterioration in quality when cross-holes are present

Solution

A careful tool selection, identifying the new PHM drill line as the most suitable solution, combined with a dedicated cutting parameter optimization to stabilize the process and improve hole quality.

Results

The results achieved showed a clear improvement in the process:

✅Clean holes, free of burrs and stringing
✅ Elimination of manual deburring operations
✅ Higher process productivity
✅ Excellent tool life

A result that confirms the effectiveness of Silmax solutions also in machining engineering polymers, where quality and process repeatability are essential.

Test data excerpt				Value
D	Cutting diameter [mm]			4.8
S	Spindle speed [rpm]			9950
Vf	Feed rate [m/min]			3480