NDLI: Optimization of parameters of processing by impulse pressure for decreasing a porosity of metals and alloys

Content Provider	IEEE Xplore Digital Library
Author	Kurlayev, N. Gulidov, A.
Copyright Year	2004
Description	Author affiliation: Novosibirsk State Tech. Univ., Russia (Kurlayev, N.; Gulidov, A.)
Abstract	The numerical modeling is carried out for research of major factors of load and physical-mechanical characteristics at impulse pressure processing of metals and alloys, in particular to impulse magnetic field (IMF), for decreasing a porosity arising in master schedules of manufacturing of parts. The full model of mechanics of a deformed solid in bivariate and axisymmetrical statement is used at a numerical modeling. Amplitude and valid time of impulsive load are major factors, which influence closing of fractures of pores. A fractional porosity and dynamic yield strength of metal or alloy determine the amplitude of load. The momentum of pressure in a zone of a pore (I/sub /spl Pi//) is the characteristic of process of closing of fractures of pores irrespective of a way of pulse processing. The momentum of pressure in a zone of a pore has extreme value. The maximum rating of value I/sub /spl Pi// meets to minimum load indispensable for the achievement of full closing of the fractures of pores. Thus, this property can be used for statement of problems of optimization. With the help of numerical calculations and the optimizations for an impulse forming of metals and alloys, in particular by pressure of IMP, the nomographs of definition of demanded technological modes taking into account properties of metals and alloys and parameters of processing can be executed.
Starting Page	34
Ending Page	38
File Size	2851165
Page Count	5
File Format	PDF
ISBN	0780383834
DOI	10.1109/KORUS.2004.1555663
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2004-06-26
Publisher Place	Russia
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Numerical models Magnetic fields Job shop scheduling Equations Solid modeling Deformable models Computer simulation Processor scheduling Computer aided manufacturing Virtual manufacturing
Content Type	Text
Resource Type	Article

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