Composites Manufacturing - Materials, Product, and Process Engineering Part 1 pptx
Composites Manufacturing - Materials, Product, and Process Engineering Part 1 pptx
... Metals
1. 1.2 Plastics
1. 1.3 Ceramics
1. 1.4 Composites
1. 2 What Are Composites?
1. 3 Functions of Fibers and Matrix
1. 4 Special Features of Composites
1. 5 Drawbacks of Composites
1. 6 Composites Processing
1. 7 ... Manufacturing Processes
11 .6 .1 Hand Lay-up Technique for Aerospace Parts
11 .6.2 Filament Winding for Consumer Goods
11 .6.3 Compression Molded SMC...
Composites Manufacturing - Materials, Product, and Process Engineering Part 2 pps
... mold-
ing) process. Materials with embedded sensors are known as
“smart” materials.
3. Composite materials have a high specific stiffness (stiffness-to-den-
sity ratio), as shown in Table 1. 1. Composites ... 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 proces...
Composites Manufacturing - Materials, Product, and Process Engineering Part 3 pps
... isocyanate and polyol are generally mixed in a ratio of 1: 1 in a reaction
chamber and then rapidly injected into a closed mold containing short or
long fiber reinforcements. RRIM and SRIM processes ... thermoset composites is a complicated process,
requiring adhesives and careful surface preparation. Thermoplastic compos-
ites typically require higher forming temperatures and p...
Composites Manufacturing - Materials, Product, and Process Engineering Part 4 ppt
... 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 ... initial stage of the design process (conceptual stage), approximate data
for wide range of materials is gathered and design options are kept open.
Table 3 .1 and Tables 2 .1 and 2....
Composites Manufacturing - Materials, Product, and Process Engineering Part 5 docx
... 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...
Composites Manufacturing - Materials, Product, and Process Engineering Part 6 pot
... 2002 by CRC Press LLC
FIGURE 6.6
Tooling for carbon fiber tennis racquet. (Courtesy of Radius Engineering, Inc.)
Composites Manufacturing - Materials, Product, and Process Engineering Part 7 potx
... 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...
Composites Manufacturing - Materials, Product, and Process Engineering Part 8 doc
... 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...
Composites Manufacturing - Materials, Product, and Process Engineering Part 10 pps
... 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 ... models for
composites manufacturing processes are described to gain more insight into
these manufacturing processes.
7.2 The Importance of Models in Composit...
Composites Manufacturing - Materials, Product, and Process Engineering Part 11 pps
... the part. Similarly, for thermoplastic composites, uniform cool-
ing should take place to avoid residual stress build-up.
• The finished part should have minimum residual stress to mini-
mize part ... debonding
6,7
• Release of volatiles and void growth
8
7.4 Process Models for Selected Thermosets
and Thermoplastics Processing
For composites processing, various analytic...