Composites Manufacturing - Materials, Product, and Process Engineering Part 13 ppt

... McGraw-Hill, New York, 1974, 336–337. 26. Dara, P.H. and Loos, A.C., Thermoplastic Matrix Composite Processing Model, Center for Composite Materials and Structures, Report CCMS-8 5-1 0, VPI-E-8 5- 21, ... labor-intensive process; a special proce- dure is followed to make the joint. 3. Joints add manufacturing time and cost to the structure. In an ideal product, there is only o...

Ngày tải lên: 10/08/2014, 11:22

... Composites Processing 6.6.4 Disadvantages of Thermoplastic Composites Processing 6.7 Composites Manufacturing Processes 6.8 Manufacturing Processes for Thermoset Composites 6.8.1 Prepreg Lay-Up ... Cataloging-in-Publication Data Mazumdar, Sanjay K. Composites manufacturing : materials, product, and process engineering / by Sandjay K. Mazumdar. p. cm. Includes bibli...

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... steel and alumi- num parts with composite materials for fuel and weight savings. The aero- space industry is utilizing more and more composite materials to increase payload capacities and fuel ... literature, suppliers’ brochures, and handbooks. In the published literature, single-value data is given on the property without any standard deviation. During the final design process, mo...

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... dimen- sional stability. 8. Net-shape or near-net-shape parts can be produced with composite materials. This feature eliminates several machining operations and thus reduces process cycle time and ... dimen- sional stability. 8. Net-shape or near-net-shape parts can be produced with composite materials. This feature eliminates several machining operations and thus reduces process cy...

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... thermoset composites is a complicated process, requiring adhesives and careful surface preparation. Thermoplastic compos- ites typically require higher forming temperatures and pressures than com- parable ... application, design and manufacturing consider- ations begin. 3.2 The Need for Material Selection With the technological advancements, new material systems and processe...

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... braiding would impart distinct stiffness, damping, and mass characteristics due to different fiber and resin distribu- tions and fiber volume fractions. Composites manufacturing processes create distinct ... metals, standard sizes of blanks, rods, and sheets are machined and then welded or fastened to obtain the final part. In composites, machining of standard-sized sheets or bla...

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... 2002 by CRC Press LLC FIGURE 6.6 Tooling for carbon fiber tennis racquet. (Courtesy of Radius Engineering, Inc.)

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... Making of the Part The processing steps used in the spray-up process are very similar to those in the wet lay-up process. In this process, the release agent is first applied to the mold and then ... in this process is identical to that used in the wet lay-up process. Male and female molds are used, depending on the application. Tubs and showers utilize male molds, whereas boat...

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... and then forming it under heat and pressure. Once a shape is formed, the preform maintains its shape. In conformal mats, fabrics or chopped strand mats are placed on the outer layer and spun-bonded ... to the desired size and formed under heat and pressure to the shape of the mold. In this process, scraps are produced to get the final shape preform because complicated three-dimensio...

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... pre-cut, pre-weighed pieces of sheet composite materials, called blanks, for processing. TABLE 6.6 Part Cycle Time for Various Manufacturing Processes Manufacturing Process Part Cycle Time (s) Compression molding ... manufacturing processes. 7.2 The Importance of Models in Composites Manufacturing A process model is very helpful in analyzing a manufacturing process,...

Ngày tải lên: 10/08/2014, 11:22