... Abstract This paper proposes a novel strategy to enhance dynamic stability of turning processes. It presents a novel assistive strategy, which combines Spindle Speed Variation (SSV) and Sinusoidal Tool Modulations to dramatically improve chatter stability of high-speed turning. Chatter...

... Abstract This paper presents novel adaptive spindle speed control strategies to minimize machining vibrations. Machining processes suffer from forced and chatter vibrations that deteriorate surface finish, reduce tool life and can damage the machine components. Model-based process planning...

... Abstract Unstable self-excited vibrations in machining are known as chatter and must be avoided by selecting appropriate machining parameters (e.g. spindle speed and cutting depth). Nonetheless, even when the machining parameters are carefully selected according to chatter models, vibrations...

... Abstract A flank textured cutting tool has been proposed to improve the chatter stability in cutting. Although excellent stability improvement effects have been reported through experimental studies, a simulation method to estimate the effects has not been established so far. In this study, we...

... Abstract When chatter vibrations occur during cutting, a characteristic pattern called chatter mark appears on the machined surface. In our previous studies, it was estimated that this chatter mark is formed by the tool (or workpiece) vibration in the normal direction with respect...

... Abstract The stability lobe diagram (SLD) is an important expression way of milling stability prediction result. The SLD obtained by only selecting the most flexible mode fails to predict the chatter if the milling process is dominated by multiple modes. To reveal the relationship between...

... relating to the milling of titanium alloys. titanium milling tool condition monitoring signal processing vibration chatter machining processes Proceedings of the ASME 2021 16th International Manufacturing Science and Engineering Conference MSEC2021 June 21-25, 2021, Virtual, Online MSEC2021...

... Abstract A number of analysis methods for the process with chatter vibration have been proposed so far. These methods can be used to improve processes stability resulting in better production efficiency. However, the poor estimation accuracy of the phenomenon severely limits the performance...

...VARIABLE HELIX CUTTER DESIGN TO SUPPRESS REGENERATIVE EFFECT Norikazu Suzuki1, Rikiya Ishiguro, Tomoki Morita, Eiji Shamoto Nagoya University Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan ABSTRACT Regeneration is a major mechanism to generate self-excited chatter vibration in cutting. Variable helix...

... This paper presents a model-based computationally efficient method for detecting milling chatter in its incipient stages. Based on a complex exponentials model for the dynamic chip thickness, the chip regeneration effect is amplified and isolated from the cutting force signal for early chatter...

... and secular distortion are measured and analyzed by using the MISTRAL 775 coordinate measuring machine (CMM), respectively. Influences of chatter on machining distortion are investigated. It is shown that, both machining distortion and secular distortion are smaller in stable case; in unstable case, machining...

... 22 09 2010 Micro milling operations utilize miniature tools to remove workpiece material, in order to create the desired 3D miniature components. One of the challenges in a micro milling operation is the unstable phenomenon called regenerative chatter. The occurrence of chatter...