Summary
A drill spindle with multi-layer construction to minimize vibration is proposed, and the performance of an extremely slender drill spindle made by this method is reported. The spindle consists of an outer pipe and inner rod. The gap between the pipe and the rod is filled with thin adhesive set in place under pressure so that the rigidity of the spindle is hardly compromised. Drill bits were installed at the tops of the spindles. The outer diameter of the pipes was 10mm and the overall length of the spindles 290mm. Various spindles with different gap dimensions and different types of adhesive were made and the performance of each was tested and compared. It was found that a spindle with a 0.1mm gap filled with silicon resin adhesive best absorbed vibration energy and that vibration was drastically reduced over a wide range of cutting speed.
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References
R. N. HAMME (1961), Vibration Control by Applied Damping Treatments, Shock and Vibration Handbook Vol. 2 (McGraw Hill Book Co. Inc.), p. 37–1
B. J. LAZAN and L. E. GOODMAN (1961), Material and Interface Damping, Shock and Vibration Handbook Vol. 2 (McGraw-Hill Book Co. Inc.), p. 36–1
M. F. SPOTTS (1958), Design of Machine Elements (Prentice-Hall Inc.), p.7
H. FUJII, S. EMA and E. MARUI (1984), Whirling Vibration in Drilling; Part 1: Cause of Vibration and Role of Chisel Edge and Part 2: Influence of Drill Geometries, Particularly of the Drill Flank, on the Initiation of Vibration, presented at Winter Annual Meeting of A.S.M.E., 1984, PE-3C-MACHINING-2
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© 1986 Department of Mechanical Engineering University of Manchester Institute of Science and Technology
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Fujii, H., Kato, S., Nagata, T., Yamada, M. (1986). Development of a Multi-Layer Spindle Capable of Absorbing Vibration. In: Davies, B.J. (eds) Proceedings of the Twenty-Sixth International Machine Tool Design and Research Conference. Palgrave, London. https://doi.org/10.1007/978-1-349-08114-1_34
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DOI: https://doi.org/10.1007/978-1-349-08114-1_34
Publisher Name: Palgrave, London
Print ISBN: 978-1-349-08116-5
Online ISBN: 978-1-349-08114-1
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