International Research Journal of Engineering and Technology (IRJET)
e-ISSN: 2395 -0056
Volume: 04 Issue: 02 | Feb -2017
p-ISSN: 2395-0072
www.irjet.net
EXPERIMENTAL INVESTIGATIONS OF MILLING ON FIBER COMPOSITES M. Sairanga 1, Mr.N.Phani raja rao 2, Mr.D.Harsha Vardhan 3 1P.G
Scholar, Sri Venkateswara Institute Of Technology, Anantapuram
2Asst.Professor,
Sri Venkateswara Institute Of Technology, Anantapuram
3Asst.Professor,
Sri Venkateswara Institute Of Technology, Anantapuram
---------------------------------------------------------------------***---------------------------------------------------------------------
Abstract - A composite material is made by combining two
Key Words: Fiber, Resin, Composite, Milling, Machining
or more materials – often one of that have very different
parameters, Failure mechanisms
mechanical properties, Composites are one of the most widely
1. INTRODUCTION
used materials. Fiber-reinforced polymers consist of a
Composite materials are constructed from two materials;
combination of two separate phases within a single material
one material is called the reinforcement or discrete phase.
microstructure, typically a fiber and resin. Machining of fiber
The other is called a matrix or continuous phase. The fiber
reinforced composite materials is a complex task due to its
and the matrix have two different properties but When
heterogeneity in inner structure and attracts many
combined together they form a material with significantly
researchers to undergo such work and analyze the machining
different properties that are not found in either of the
parameters. Milling is used as a corrective operation for
individual materials, such as high strength per weight
removing excess amount of materials after manufacturing the
ratio, high corrosion and thermal resistance and high
composite materials and Milling can be done with a wide
stiffness, which are markedly superior to those of
range of machine tools. In this work the influence of speed,
comparable metallic alloys. The duty of the matrix phase is
feed and depth of cut on the machining forces namely, thrust
to hold the reinforcement in order to form the desired
force and torque were studied. The focus of this thesis will
shape; while the function of the reinforced is to carry the
remain on studying the fiber failure mechanisms occurring in
major external load thus improves the overall mechanical
the machining process and how these are affected by process
properties of the matrix. When the two phases are mixed
parameters such as tool geometry and fiber orientation. The
properly, the new combined material present better
three machining responses used to validate the proposed fiber
strength than would each individual material. The
failure model were chip morphology, delamination, and
simplest explanation of a composite material is shown in
cutting forces. The responses were analyzed using Materials of
figure 1.
experiments to examine the most influencing factors aiming to reduce the cutting forces. The results showed that all three factors chosen have a significant effect on the responses. The experiments were conducted according to Materials. The four cutting parameters selected for this investigation are milling strategy, spindle speed, feed rate and depth of cut. Response table of grey relational grade for four process parameters is used for the analysis to produce the best output.
Figure 1: Formation of composite material using fibers and resins
Š 2017, IRJET
|
Impact Factor value: 5.181
|
ISO 9001:2008 Certified Journal
|
Page 1900