A First Prototype of an Active Boring Bar Tested in Industry

Document type: Conference Papers
Peer reviewed: No
Author(s): Henrik Åkesson, Tatiana Smirnova, Lars Håkansson, Ingvar Claesson, Andreas Sigfridsson, Tobias Svensson, Thomas L Lagö
Title: A First Prototype of an Active Boring Bar Tested in Industry
Translated title: En första prototyp av en aktiv svarvbom testad i industrin
Conference name: Thirteenth International Congress on Sound and Vibration
Year: 2006
City: Vienna
Organization: Blekinge Institute of Technology
Department: School of Engineering - Dept. of Signal Processing (Sektionen för teknik – avd. för signalbehandling)
School of Engineering S- 372 25 Ronneby
+46 455 38 50 00
Authors e-mail: henrik.akesson@bth.se
Language: English
Abstract: Metal cutting is a common process in the manufacturing industry. Vibration problem during metal cutting is a reality for these manufactures. The vibration level depends on many different parameters such as material type, dimensions of the workpiece and boring bar, cutting data and operation mode. Internal cutting is one of the most troublesome operation modes, without any continuous monitoring and control from an operator grave vibration levels quickly arises. From the industry point of view this is an expense in the production line. The reduced tool life and the coarse surface finishing caused by the large vibration will force the operator to stop the cutting process, either to change tool when it is broken or change cutting data like decreasing the cutting depth. Any interference like this increases the working time for each component tremendous. These problems have been located and examined in an industry producing and renovating components using a lathe. One lathe was chosen for further investigation by experimental modal analysis and analysis during operational mode. The examination was done in an environment with machining processes in full operation mode and also during non-working ours. After analyzing the problem different solution where scrutinized and a first prototype where constructed. The solution to the problem is an active boring bar. This paper will present the procedure from analyzing a problem in industry to the test of the first prototype of the solution.
Subject: Signal Processing\Active Noise and Vibration Control
Mechanical Engineering\Structural Dynamics
Keywords: Active, Adaptive, Control, Industry