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sheet molding compound

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Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003035
EISBN: 978-1-62708-200-6
...Abstract Abstract Sheet molding compounds (SMCs) refers to both material and process for producing glass-fiber-reinforced polyester resin items. This article discusses the material components incorporated into the resin paste for desirable processing and molding characteristics and optimum...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003019
EISBN: 978-1-62708-200-6
... closing, compressing material to fill cavity Fig. 5 Size of charge in relation to tool Abstract Abstract The compression molding process is most commonly called the sheet molding compound (SMC) process in reference to the precursor sheet molding compound material it uses. This article...
Book Chapter

Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003370
EISBN: 978-1-62708-195-5
... for sheet molding compounds with 15 to 30 wt% glass fiber Table 1 Typical mechanical properties for sheet molding compounds with 15 to 30 wt% glass fiber Tensile modulus, GPa (10 6 psi) 11–17 (1.6–2.5) Tensile strength, MPa (ksi) 55–138 (8–20) Elongation at failure, % 0.3–1.5...
Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003415
EISBN: 978-1-62708-195-5
... of three main groups of composite materials, namely, glass-fiber-mat-reinforced thermoplastics, long-fiber-reinforced thermoplastics, and sheet molding compounds. The article also presents information on the application examples and market volume of compression molding. References References 1...
Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003474
EISBN: 978-1-62708-195-5
... RTM and SRIM 20–50 50–80 Fiber preforms Polyester, others Low pressure, tooling issue Compression molding (sheet molding compound) 20–50 50–80 Long, random Polyester, others Fiber orientation, surface finish issues Stamping 20–60 40–80 Random coiled, continuous aligned...
Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003366
EISBN: 978-1-62708-195-5
.... (a) As determined by dynamic mechanical analysis (DMA) loss modulus. (b) phr, parts per hundred parts resin Typical composition of a phenolic sheet molding compound Table 9 Typical composition of a phenolic sheet molding compound Material Content, parts by weight Phenolic resin (GP 652D58...
Series: ASM Handbook
Volume: 20
Publisher: ASM International
Published: 01 January 1997
DOI: 10.31399/asm.hb.v20.a0002492
EISBN: 978-1-62708-194-8
...) displayed many new products in major and emerging end-use markets. Examples included a front-end apron for passenger cars that replaces 44 steel parts at a 25% weight savings and a sheet molding compound cross-vehicle beam that consolidates 20 steel and plastic pieces with a 10% weight savings...
Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003471
EISBN: 978-1-62708-195-5
...; RIM, reaction injection molding; SMC, sheet molding compound The processes for recycling of thermoset-matrix composites listed in Table 1 fit into several broad categories. These include regrind processes, chemical processes, energy recovery processes, and other thermal processes for fiber...
Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003395
EISBN: 978-1-62708-195-5
... at a 25% weight savings and a sheet molding compound, cross-vehicle beam that consolidates 20 steel and plastic pieces with a 10% weight savings. Such examples indicate the advantages of integrating large structures through the use of composites. Almost all processes can be improved once implemented...
Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.9781627081955
EISBN: 978-1-62708-195-5
Series: ASM Handbook
Volume: 20
Publisher: ASM International
Published: 01 January 1997
DOI: 10.31399/asm.hb.v20.a0002491
EISBN: 978-1-62708-194-8
... n y y n n y n n Thermoset plastics Compression  Powder 60 8.7 30 3370 0.5 5 y y y y n n y n y y  Sheet molding compound 6–20 0.85–3 30 3370 4–5 45–55 y y y y n n y n y y  Cold-press molding 1 0.15 30 3370 … … n n y y...
Series: ASM Handbook
Volume: 20
Publisher: ASM International
Published: 01 January 1997
DOI: 10.31399/asm.hb.v20.a0002465
EISBN: 978-1-62708-194-8
... processes Chopped, continuous short-fiber reinforcement for molding compounds, injection or resin-transfer molding, and bulk- or sheet-molding compound as a charge for compression molding Coupling agents are added to assist the binding of organic and inorganic fibers to the resin matrix. Types...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003002
EISBN: 978-1-62708-200-6
... Bulk molding compound, glass filled 1.7–2.3 26–69 4–10 11.0–17.2 1.6–2.5 0.80–8.5 1.5–16 205–230 400–450 150–175 300–350 Sheet molding compound, glass filled 1.7–2.1 55–139 8–20 11.0–17.2 1.6–2.5 4.3–11.7 8–22 205–230 400–450 150–175 300–350 Glass cloth reinforced 1.3–2.1...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003012
EISBN: 978-1-62708-200-6
... each molding cycle) or semipermanent. Mold-release agents can also be internal (compounded into the plastic). Internal mold-release agents can offer other advantages in terms of mold flow, uniformity of coverage, and cost control. Lubricants are used to decrease internal and external friction...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003032
EISBN: 978-1-62708-200-6
.... , Vol 18 ( No. 2 ), 1984 24. Resinox SC1008 Phenolic Product Data Sheets , Plastics Division, Monsanto Chemical Company 25. “Reinforced Molding Compounds,” Fiberite Corporation 26. 1970 Guide to Plastics, Modern Plastics Encyclopedia 27. Lubin G. , Ed., Handbook...
Book Chapter

Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003360
EISBN: 978-1-62708-195-5
...-preformance applications (including aerospace applications) and those to be used in lower-performance molding compounds. Aerospace applications demand high-performance, high-quality composites and moldings. The lower-performance applications use sheet molding prepregs for automotive components and appliance...
Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003447
EISBN: 978-1-62708-195-5
... , Jan 1953 23. Wang S.S. , Goetz D.P. , and Corten H.T. , J. Compos. Mater. , Vol 18 ( No. 2 ), 1984 24. Resinox SC1008 Phenolic Product Data Sheets , Plastics Division, Monsanto Chemical Company 25. “Reinforced Molding Compounds,” Fiberite Corporation 26...
Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003351
EISBN: 978-1-62708-195-5
... choppers to make sheet molding compounds. After the request was made and the potential market was found to be significant, large multiple-strand bundles in center-pull packages were developed. In the case of carbon fibers, the need for woven fabrics to form complex shapes brought a request for smaller tows...
Series: ASM Handbook
Volume: 20
Publisher: ASM International
Published: 01 January 1997
DOI: 10.31399/asm.hb.v20.a0002433
EISBN: 978-1-62708-194-8
... material in terms of resource use, impact on global climate, and recyclability. The four options were steel sheet; primary aluminum sheet; an injection-molded polymer blend of polyphenylene oxide and nylon (PPO/PA); and sheet molding compound (SMC), a glass-fiber reinforced unsaturated polyester resin...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003007
EISBN: 978-1-62708-200-6
... Primary Secondary Sheet steel Stamped Welded fabrication Sheet molding compound (SMC) or thermoplastic. SMCs offer 30% weight savings at similar room-temperature performance. Cost comparison depends on steel complexity. Sheet stainless steel Stamped Welded fabrication As above, except SMCs...