Assignment on Research Methodology PDF

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RESEARCH METHODOLOGY
By Name
Course
Instructor
Institution
Location
Date

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EXPERIMENT AND FINITE ELEMENT ANALYSIS OF CARBON FIBRE
REINFORCED POLYMER
Literature Review
Carbon fiber polymers are used in applications which are in structural form because of their
features these features include their possession of light weight, their high strength, possession of
specific higher stiffness , stability on conventional alloys and metals and also low thermal
expansion [1].
One of the most commonly applied process of removing materials in the CFRPs manufacture is
milling. But unlike metal milling that is featured by high rates of material removal, in FRPs
milling operation system it is usually done only at a lower scale. Normally, manufacturing of
composites is done with specific and modern methods of manufacturing. Though, they require
machines in limited numbers that are traditional in nature [1]. These machines include milling
and drilling process machines in order to achieve the required shape. Milling and drilling
complexities is in orientation terms, chip size and forces of cutting that vary continuously with
the rotation of the tool. However, the CFRP features may have difficulties during composite
machining which can lead to unwanted damages in the surface that is machined. The machining
precision and damage of the laminate depend greatly on machining measurements especially the
feed rate and cutting velocity [2].
Even though it is expensive and time consuming studying the machining processes, it is
important to carry out an experimental study analysis in order for us to overcome difficulties
involved in machining.

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Experimental study
The experiments of milling were done on a NAMMIL XL602AV, a vertically milling machine
with a spindle power 2 HP and a 1700 rpm maximum speed. A TiAIN coated solid carbide mill
cutter that was a 10 mm diameter which is the most favorite one that was attached in its universal
three-jaw chuck. Slot milling operation was conducted for various cutting feeds and speeds [3].
The speed recorded were 10.99m/min, 18.84m/min, 28.26m/mm and 53.38m/mm, for the feeds
they were 50mm/min, 150mm/min and 350mm/min.
IEICOS four channel dynamometer, model number 6306 was used to mine thrust force data. The
signal found was converted and transmitted to the computer through the analogue-digital
converter. Model 6306 S IEICOS indicator software of a multi component digital force was used
in capturing the thrust force data when the milling was operating, as shown in fig. 1 below.
Fig: Model 6306 S IEICOS indicator software [4]