The Effect of Feed Rate and Cutting Speed on Surface Roughness in Milling

Running head; SURFACE ROUGHNESS IN MILLING
The Effect of Feed Rate and Cutting Speed on Surface Roughness in Milling
Name
Institution

SURFACE ROUGHNESS IN MILLING 2
The Effect of Feed Rate and Cutting Speed on Surface Roughness in Milling
The Effect of Feed Rate and Cutting Speed on Surface Roughness in Milling
Name
Institution

SURFACE ROUGHNESS IN MILLING 3
The Effect of Feed Rate and Cutting Speed on Surface Roughness in Milling
Reflection 1
This exercise made it clear to me that reducing the cutting speed of the machine tends to increase
the surface roughness due to the impact of built up edge on the surface of the specimen. This is
because the low cutting speeds prevent the occurrence of the built up edge during the milling
process which generates a large burr quantity on the machined surface. The impact of this is
improving the surface roughness and thus the quality of the surface finish of the specimen being
milled. The machine used to mill the specimen through increasing the cutting speed thus leads to
the advantages of surface roughness such as reduced loss of material, high tensile strength,
precision and high production rates. The cutting speed ought to be low in order to create groves
on the surface of the material, which contribute to surface roughness required for the different
advantageous benefits of machining in enhancing the corrosion resistance, strength and
resistance to creep (Özel, Hsu, & Zeren, 2005).
Reflection 2
Further I became aware that ensuring that the feeding rate remains high guarantees that the
cutting forces and the residual stresses from milling processes increases the dynamic stability of
the surface being milled thus increasing the surface roughness of the specimen. (Benardos &
Vosniakos, 2003). The feed rate refers to the speed at which the tool of milling machine
advances along its own cutting path to interact with the specimen being milled (Asiltürk &
Akkuş, 2011). Milling allows the specimen to have a more applicable desired shape contributing
to a good quality of surface finishing due to the high feed rate thus a reduction in the costs of
metal parts manufacturing in terms of the sizing tolerances that may be required for high