Efficient determination of stability lobe diagrams by in-process varying of spindle speed and cutting depth

Abstract

The experimental determination of stability lobe diagrams (SLDs) in milling can be realized by either continuously varying the spindle speed or by varying the depth of cut. In this paper, a method for combining both these methods along with an online chatter detection algorithm is proposed for efficient determination of SLDs. To accomplish this, communication between the machine control and chatter detection algorithm is established, and the machine axes are controlled to change the spindle speed or depth of cut. The efficiency of the proposed method is analyzed in this paper.

Keywords

Chatter detection / Poincaré / Cutting depth variation / Spindle speed

Funding

Deutsche Forschungsgemeinschaft http://dx.doi.org/10.13039/501100001659(BR 2905/73-1)