Productivity Increase at the Customer:
Process Optimization through Burr-Minimized Drilling in Stainless Steel
In the series production of tubes made from stainless, austenitic steel 1.4580, burr formation at bores posed a significant problem. A customer in mass production faced burr heights of up to 0.4 mm, with recurring disruptive drill caps. The previously used methods—including circular interpolation for burr removal—did not deliver satisfactory results and led to increased rework effort.
Seeking a more efficient and process-reliable solution, the customer turned to our team of experts. Through extensive testing, significant optimization was achieved using the ExBurrDrill solid carbide (VHM) tool.
The tool delivered impressive results at the following cutting parameters:
- Spindle speed (n): 3,000 rpm
- Feed per revolution (f): 0.15 mm/rev
- Feed rate (Vf): 450 mm/min
The Results
- No more drill caps at the bore exits
- Reduction of burr height to a maximum of 0.050 mm
By adjusting the cutting parameters to a spindle speed of 2,000 rpm and a feed rate of 0.08 mm/rev, the burr height was further reduced to only 0.025 mm – an outstanding value that significantly exceeded the customer's requirements.
Conclusion
The use of the ExBurrDrill
not only enables a drastic reduction of burr formation and drill caps when machining austenitic stainless steel but also significantly increases manufacturing efficiency and process reliability. This minimizes the need for time- and cost-intensive rework.
Are you also facing challenges in drilling demanding materials?
Contact us – together we will find the optimal solution for your requirements.