Machining Force Models for Aluminum and Magnesium based MMC

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Machining force models developed for Aluminum based MMC, Magnesium based MMC
The cutting process of metal matrix composites (MMCs) has been significantly challenging
because of the extremely abrasive nature of the reinforcement causing rapid tools to wear
and the high machining cost [1]. In this literature review, three aluminum-based metal matrix
composites are produced by the use of high-pressure infiltration. All the machining tests are
carried out by the face milling on the Metal Matrix Composites by the use of the coated
Carbide cutting tools at different values feed rates , the width of the cut and the depth of the
cut under a constant cutting speed.
A Metal composite refers to a multiphase material which consist of the basic material which is
an embedding and the integrating so-called matrix and the second phase which is intended
for the reinforcement , with very high strength and very high elastic modulus. Hence the
components to offer the basic the composite is the basic material of the lower strength, and the
load bearing and load mediating components are a granular or a continuous metal [2].
Definitions
Cutting force: This refers to the force which is generated by the cutting tools as it is the machines
the workpieces. The cutting force can be divided into two categories i.e. The primary and the
secondary cutting forces [3].
Primary cutting force: This refers to the cutting force which is directly produced by the relative
the cutting tools with respect to the workpiece during the machining process. The primary
cutting forces mainly takes place in the same direction as the cutting tool movement.
Secondary cutting force: this refers to the force which is produced in response to tote primary
cutting forces, for instance, the vibration which occurs during the machining periods.

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Cutting force modeling: This refers to the mathematical representation of a machining process in
order to study the impacts of the varying process parameters on the cutting forces.
Metal matrix composites: This refers to a material which has a minimum of two constituents
parts, one being a metal essentially, and the other material may different metal or another
material, for instance, the organic or ceramic compound. In the scenarios where there are three
materials present, they form a hybrid composite [4].
Chip forming process
The chips are formed as part of the metal cutting through mechanical means, this involves the
use of tools such as lathes, milling cutters, and saws. The chip formation process is normally
described according to the three-way model which was developed by Franz, The model is well,
known within the field of tool and machine design, also it is widely used in the woodworking.
The type of chips that are formed greatly depends on many factors such as the angle formed by
the edge of the faces of the tools and the angle at which this is presented to the surface. [5]
Type I chip: This is usually formed when a material is split ahead of the cutting edge, resulting to
some upward wedge of the tool exceeding the tensile strength of the metal, which is
perpendicular to the surface.
Type II Chip: This type of chip is formed when a shearing force is generated by the edge of the
tool angle.
Type III chip: This type of the chip is formed when a compression failure of the material, ahead
of the cutting angle.
Planning for the face milling Experimentation