Sheet molding compound - Open Access .click

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1984
The use of lightweight fiber-reinforced plastics (FRP) in automotive applications offers a promising avenue towards achieving better fuel economy through weight reduction. In addition to their high strength-to-weight ratios, FRP ma-terials offer other potential advantages over sheet metals, such as a wide choice of thickness and shape, reduced cost ...
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Hygrothermal Degradation of Sheet Molding Compounds

1985
Environmental variables such as moisture and temperature degrade fiber-reinforced polymer composites to various levels. This paper characterizes the hygrothermal degradation of a sheet molding compound (SMC) containing 65% by weight of E-glass fibers. Six different environments were chosen for the study: room temperature (RT)/65% relative humidity (RH),
AB Hosangadi, HT Hahn
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Thermal and cure analysis in sheet molding compound compression molds

Polymer Engineering & Science, 1987
Abstract Sheet molding compound (SMC) compression molding growth will benefit from faster cycles and more uniform cure so as to reduce in‐plane thermal residual stress and resulting warpage in the molded part. These improvements require an in‐depth study of the mold thermal design.
J. M. Castro, C. C. Lee
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Simulation of Molding Flow of Sheet Molding Compound in Complicated Dies

Materials Science Forum, 2008
Based on generalized Hele-Shaw(GHS) model, numerical simulation of compression-molding flow of sheet molding compound (SMC) in complicated dies is realized by control volume/finite element method (CV/FEM). Finite element computing and post analysis programs have been written. The flow fronts of SMC charge during compression molding are tracked, and the
Qi Lin Mei +3 more
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Research on the Molding Parameters for Low Pressure Sheet Molding Compounds

Applied Mechanics and Materials, 2010
Molding parameters are significant for compression molding. In this paper, the molding process for low pressure sheet molding compounds thickened by crystalline unsaturated polyester was investigated. The optimal molding parameters such as molding temperature, molding pressure and curing time were determined by orthogonal test.
Jian Li, Xun Zhang Yu, Kai Zhang
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The effects of molding conditions on the surface composition of sheet molding compound

Polymer Composites, 1991
AbstractAn improved internal reflection infrared spectroscopy (ATR) technique (1) has been found to be effective for measuring the relative concentrations of polyester and polystyrene (resin) and calcium carbonate filler on sheet molding compound (SMC) surfaces.
D. J. McEwen, J. Newbould
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Numerical simulation of phenolic sheet molding compound in compression molding

Journal Wuhan University of Technology, Materials Science Edition, 2003
Based on generalized Hele-Shaw (GHS) model, a numerical simulation of phenolic sheet molding compound (P-SMC) in compression molding is realized by finite element step-by-step computing method. Finite elemental computing and post analysis programs have been written.
Mei Qi-lin, Yan Shi-lin, Huang Zhi-xiong
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INNOVATIVE SHEET MOLDING COMPOUND PROCESSES

SAE Technical Paper Series, 1979
<div class="htmlview paragraph">The automotive industry is in the process of reducing vehicle weight to meet the Federal mandate for gas mileage. Lightweight sheet molding compound (SMC) can make a significant contribution. However, to be competitive with other improved lightweight materials, several changes in the standard compression molding ...
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Processability study of in‐mold coating for sheet molding compound compression molded parts

Polymer Engineering & Science, 2019
In‐mold coating (IMC) is applied to compression molded sheet molding compound (SMC) exterior automotive or truck body panels as an environmentally friendly primer to make the part conductive for subsequent electrostatic painting operations. The coating is a thermosetting liquid that when injected onto the surface of the part cures and bonds to provide ...
Seunghyun Ko +4 more
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Electron pretreatment of sheet molding compounds (SMC)

Progress in Organic Coatings, 2011
Abstract Based on thermal investigations on Class-A SMC test panels that were molded at different conditions incomplete curing reaction of un-saturated resin and reactive thinner as well as the post-curing and out gassing during industrial coating processes are the two main reasons for the observed coating problems.
Michaela Gedan-Smolka +3 more
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