Results 101 to 110 of about 201 (142)
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Air entrapment in sheet molding compounds (SMC)
Polymer Composites, 1986AbstractEntrapped air can commonly lead to large delaminations in thick walled sheet molding compound (SMC) products. In this work different sources of air entrapment in SMC are investigated. The critical process is shown to be the impregnation of the fibers. If no surface active additives are used, large volumes of air may be entrapped in this process,
Dag Slotfeldt‐Ellingsen +4 more
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Numerical simulation of non‐isothermal SMC (sheet molding compound) molding
Polymer Composites, 1993Abstract Design of molding tools and molding cycles for sheet molding compounds (SMC) is often expensive and time consuming. Computer simulation of the compression molding process is a desirable approach for reducing actual experimental runs.
J.‐T. Twu +3 more
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Simulation‐based design of sheet molding compound (SMC) compression molding
Polymer Composites, 1994AbstractThe design of moding tool and molding cycle for sheet molding compounds (SMC) is often expensive and time consuming. Computer simulation of the compression molding proces is a desirable approach to reduce experimental prototypes. The focus of this work is to develop an automatic optimization scheme utilizing an earlier developed SMC plrocess ...
Jun‐Tien Twu +2 more
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Introducing cellulose nanocrystals in sheet molding compounds (SMC)
Composites Part A: Applied Science and Manufacturing, 2016Abstract The mechanical properties of short glass fiber/epoxy composites containing cellulose nanocrystals (CNC) made using sheet molding compound (SMC) manufacturing method as well as the rheological and thermomechanical properties of the CNC-epoxy composites were investigated as a function of the CNC content. CNC up to 1.4 wt% were dispersed in the
Amir Asadi +4 more
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Polymer Composites, 2003
Abstract One of the fastest‐growing applications of SMC compression molding is the manufacture of truck body panels. Because of their large size, the molding forces required are substantial and have a major influence on the molding cycle.
Sarah Boylan +2 more
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Abstract One of the fastest‐growing applications of SMC compression molding is the manufacture of truck body panels. Because of their large size, the molding forces required are substantial and have a major influence on the molding cycle.
Sarah Boylan +2 more
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Decreasing paint cost for sheet molding compound (
Abstract Finishing, in most cases, is the most expensive step for manufacturing plastic parts in automotive and truck industry; being electrostatic painting is the desired approach for improved quality. For plastic parts to be painted electrostatically, a conductive primer needs to be applied first.
Kaiyu Cai +6 more
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Powder coating of sheet molding compound (SMC) body panels
Polymer Composites, 2001AbstractSheet Molding Compound (SMC) compression molded parts are prone to porosity. During top coat baking, trapped air in the surface porosity expands and often blows through the paint leaving unacceptable craters in the final finish. The accepted solution to this problem in the SMC industry is to use a coating compound on the SMC part.
Lisa M. Abrams, Jose M. Castro
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Polymer Engineering & Science, 2019
In‐mold coating (IMC) is a thermosetting liquid applied to compression molded sheet molding compound (SMC) exterior automotive or truck body panels as an environmentally friendly primer to improve surface quality and make the part conductive for subsequent electrostatic painting.
Mohammad S.K. Bhuyan +5 more
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In‐mold coating (IMC) is a thermosetting liquid applied to compression molded sheet molding compound (SMC) exterior automotive or truck body panels as an environmentally friendly primer to improve surface quality and make the part conductive for subsequent electrostatic painting.
Mohammad S.K. Bhuyan +5 more
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Polymer Composites, 1987
AbstractA package of procedures have been developed to collect and analyze the response of dynamic variables such as pressure, temperature, and mold separation during the compression molding of Sheet Molding Compound (SMC). From the dynamic responses, the molding process was found to consist of two regions: the flow and the subsequent curing reaction ...
Hua‐tie Kau, Edward M. Hagerman
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AbstractA package of procedures have been developed to collect and analyze the response of dynamic variables such as pressure, temperature, and mold separation during the compression molding of Sheet Molding Compound (SMC). From the dynamic responses, the molding process was found to consist of two regions: the flow and the subsequent curing reaction ...
Hua‐tie Kau, Edward M. Hagerman
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Variability in static strengths of sheet molding compounds (SMC)
Polymer Composites, 1983Abstract In this paper, the variability in static strengths of six glass fiber‐reinforced sheet molding compounds (SMC) is reported. This variability was shown not to be caused by macroscopic variations in fiber, resin, filler, or void content nor gross fiber anisotropy.
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