The dynamic stability of a workpiece in a fixture is a critical indicator of machining fixture performance and is affected by a variety of factors. This paper presents a parameter effect analysis of fixturing dynamic stability in machining based on a previously developed stability model. The effects of four major factors - spindle speed, static coefficient of friction, fixture layout, and clamping forces - on the dynamic stability of a fixtured workpiece are investigated and the predominant effects are identified. Further, the effect of imprecision of the static coefficient of friction on the fixturing dynamic stability is examined. A numerical example is presented and insightful interpretations are given.
Volume Subject Area:
Manufacturing (Research Oriented)
1.
Deng, H., Melkote, S.N., 2005, “Analysis of fixturing dynamic stability in machining,” 2005 IEEE/ASME International Conference on Advanced Intelligent Mechatronics (AIM2005), July 24–28, 2005, Monterey, California.
2.
Chou
Y. C.
Chandru
V.
Barash
M. M.
1989
, “A mathematical approach to automatic configuration of machining fixtures: analysis and synthesis
,” ASME Journal of Engineering for Industry
, Vol. 111
, No. 4
, pp. 299
–306
.3.
DeMeter
E. C.
1994
, “The min-max load criteria as a measure of machining fixture performance
,” ASME Journal of Engineering for Industry
, Vol. 116
, pp. 500
–507
.4.
Li
B.
Melkote
S. N.
1999
, “An elastic contact model for the prediction of workpiece-fixture contact forces in clamping
,” ASME Journal of Manufacturing Science and Engineering
, Vol. 121
, pp. 485
–493
.5.
Wang
M. Y.
Pelinescu
D. M.
2003
, “Contact force prediction and force closure analysis of a fixtured rigid workpiece with friction
,” ASME Journal of Manufacturing Science and Engineering
, Vol. 125
, pp. 325
–332
.6.
Kang
Y.
Rong
Y.
Yang
J. A.
2003
, “Geometric and kinetic model based computer-aided fixture design verification
,” ASME Journal of Computing and Information Science in Engineering
, Vol. 3
, pp. 187
–199
.7.
Shawki
G. S. A.
Abdel-Aal
M. M.
1965
, “Effect of fixture rigidity and wear on dimensional accuracy
,” International Journal of Machine Tool Design
, Res. 5
, pp. 183
–202
.8.
Daimon
M.
Yoshida
T.
Kojima
N.
Yamamoto
H.
Komatsu Ltd.
Hoshi
T.
1985
, “Study for designing fixture considering dynamics of thin-walled plate and boxlike workpieces
,” Annals of the CIRP
, Vol. 34
, No. 1
, pp. 319
–324
.9.
Serdyuk
L. M.
Mikityanskii
V. V.
1987
, “Analyzing the sensitivities of production systems to machine tool fixture dynamic characteristics
,” Mashinovedenie
, Vol. 4
, pp. 92
–96
.10.
Mittal
R. O.
Cohen
P. H.
Gilmore
B. J.
1991
, “Dynamic modeling of the fixture-workpiece system
,” Robotics & Computer-Integrated Manufacturing
, Vol. 8
, No. 4
, pp. 201
–217
.11.
Liao
Y. G.
Hu
S. J.
2000
, “Flexible multibody dynamics based fixture-workpiece analysis model for fixturing stability
,” International Journal of Machine Tools & Manufacture
, Vol. 40
, pp. 343
–362
.12.
Liao
Y. G.
Hu
S. J.
2001
, “An integrated model of a fixture-workpiece system for surface quality prediction
,” International Journal of Advanced Manufacturing Technology
, Vol. 17
, pp. 810
–818
.13.
Deiab
I. M.
Veldhuis
S. C.
Dumitrescu
M.
2002
, “Dynamic modeling of face milling process including the effect of fixture dynamics
,” Transactions of NAMRI/SME
, Vol. 30
, pp. 461
–468
.14.
Hockenberger
M. J.
DeMeter
E. C.
1995
, “A preliminary investigation into the use of meta-functions for the dynamic analysis of workpiece displacement within a machining fixture
,” Transactions of NAMRI/SME
, Vol. 23
, pp. 325
–330
.15.
Tao
Z. J.
Kumar
A. S.
Nee
A. Y. C.
Mannan
M. A.
1997
, “Modeling and experimental investigation of a sensorintegrated workpiece-fixture system
,” International Journal of Computer Application in Technology
, Vol. 10
, Nos. 3/4
, pp. 236
–250
.16.
Cai
W.
Hu
S. J.
Yuan
J. X.
1997
, “Variational method of robust fixture configuration design for 3-D workpieces
,” ASME Journal of Manufacturing Science and Engineering
, Vol. 119
, pp. 593
–602
.17.
Estrems
M.
Sßnchez
H. T.
Faura
F.
2003
, “Influence of fixtures on dimensional accuracy in machining processes
,” The International Journal of Advanced Manufacturing Technology
, Vol. 21
, pp. 384
–390
.18.
Liu
S. C.
Hu
S. J.
1997
, “Variation simulation for deformable sheet metal assemblies using finite element methods
,” ASME Journal of Manufacturing Science and Engineering
, Vol. 119
, pp. 368
–374
.19.
Camelio
J.
Hu
S. J.
Ceglarek
D.
2003
, “Modeling variation propagation of multi-station assembly systems with compliant parts
,” ASME Journal of Mechanical Design
, Vol. 125
, pp. 673
–681
.20.
Zhong
W.
2004
, “Unified modeling of variation propagation and tolerance synthesis for integrated machining-assembly systems part I: modeling variation propagation
,” Transactions of NAMRI/SME
, Vol. 32
, pp. 541
–548
.21.
Shen
Y.
Duffie
N. A.
1995
, “An uncertainty analysis method for coordinate referencing in manufacturing systems
,” ASME Journal of Engineering for Industry
, Vol. 117
, pp. 42
–48
.22.
Shimoga, K.B., Goldenberg, A.A., 1991, “Grasp admittance center: how sensitive is it to parameter imprecision?” Proceedings of IEEE International Conference of Robotics and Automation, pp. 619–624.
23.
Shimoga, K.B., Goldenberg, A.A., 1991, “Grasp admittance center: a concept and its implications,” Proceedings of IEEE International Conference of Robotics and Automation, April 7–12, Sacramento, CA, pp. 293–298.
24.
Hershkovitz
M.
Teboulle
M.
1998
, “Sensitivity analysis for a class of robotic grasping quality functionals
,” Robotica
, Vol. 16
, pp. 227
–235
.25.
Johnson, K.L., 1985, Contact Mechanics, Cambridge University Press, U.K.
26.
Bauchau, O.A., 2004, Aerospace Structural Analysis, Chapter 7 Variational and Energy Principles, Georgia Institute of Technology, Atlanta, U.S.A.
27.
Carr Lane Manufacturing Co., 1995, Modular Fixturing Handbook, 2nd Edition.
28.
Altintas, Y., 2000, Manufacturing Automation, Cambridge University Press.
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