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60 Cătălin Fetecău et al.
Table 1
The plan of the experiments
PROCESS PARAMETERS
TOOL
feed, f, speed, v, depth, t,
PARAMETERS
mm/rev rev/min mm
Clearance angle, α, º 7 0.083
Side rake angle, γ, º -5 0.208
Lead angle, χ, º 45 0.416
Nose radius, r, mm 0.4 0.5
78.54
157.08
314.16
The mechanical properties and chemical composition of work-piece
material, AISI 1060, are show in Table 2.
Table 2
The chemical composition and mechanical properties of AISI 1060
Chemical composition, % Yield Ultimate Tensile Hardness
Material
Cu Mn P S
strenght,
MPa
Strenght
MPa Bhn
AISI
1060
0.605 0.75 0.04 0.05 370 625 179
For meshing were used triangular elements with 3 nodes, both for piece and
for the tool. AdvantEdge TM program automatically generates the finite element
network after that specified a maximum length of finite element, mean that the
smallest and most finite element of edge length [5].
Fig. 4 – The finite element network for the whole piece-tool-chip.
The Druker-Prager model was used to simulate the process of chip breaking.
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