Civil Engineering Reference
In-Depth Information
FIGURE 4.23
Software organization of decision-support system for component/tool design.
4.6
Conclusions
FEM has been applied to injection forging to analyze forming-force requirements, to simulate the
development of flow-dependent flaws, to determine the limiting pdz aspect ratios, to design preforms to
extend the process-range, to design the forming-sequences to improve component-quality, and to quan-
tify component-form errors. These have been possible because several FE-modeling procedures were
developed for injection forging. The success in analyzing injection forging suggests that FE is an efficient
tool for the design of processes and tools to achieve nett-form of engineering components. Efficiency of
the design and analysis will further be improved by using a decision-support system for component/tool
design in which FE analysis, CAD, CAM, expert knowledge, and Neural Networks techniques are to be
integrated. The integration of these functions will enable more efficient use of FE simulation for analyzing
forming-processes and more efficient assessment of the design, so that the design will meet performance
and manufacturing requirements.
References
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2.
Geiger, R., Near-nett shape forming by radial extrusion, Proc. 7th Int. Cold Forging Congress,
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3.
Alexander, J. M. and Lengyel, B., “On the cold extrusion of flanges against high hydrostatic
pressure”, J. of the Institute of Metals, 93:137, 1965.
4.
Aliev, I. S., Radial extrusion process, Sov. Forg. Met. Stamping Technology, Part 3, p. 54, 1988.
5.
Balendra, R. and Qin, Y., Pressure-assisted Injection Forging of thick-walled tubes, Int. J. of Mach.
Tools Manfact., 35:11:1481, 1995.
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Rozhkov, S. I. and Kirsanov, K.A., One- and two-directional extrusion of parts with one branched
rod element, Soviet Forging and Sheet Metal Forming Stamping Technology, No. 3, p. 5, 1988.
7.
Enghave, C., Tvaerflydepresning af roerflanger (in Danish), Procesteknisk Institut, DtH, MM-
rapport ny. 91.08, 1991.
8.
Osen, W., Variation, of the transverse impact extrusion process, Wire , 35:3:109, 1985.
 
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