Machinability and Surface Integrity Part 2 docx
Machinability and Surface Integrity Part 2 docx
... accelerated machinability test, illustrating how ank wear and
surface texture degrades, with the number of facing-o passes
.
Machinability and Surface Integrity
tions. For a practical machinability ...
Figure 149. Flow chart indicating the desigh philosophy for unbiased and ranked machinability trials.
Machinability and Surface Integrity
... to
each ot...
Machinability and Surface Integrity Part 9 docx
...
•
Temperature and thermal eects – can be utilised
to improve tool life and part quality,
•
Tool wear analysis – predicts the eects of tool
ank wear and how this wear land inuences sub-
sequent: ... vector directions have been reversed and some terms have been modied from the original
work. [Source: Ernst & Merchant, 1941]
.
Machinability and Surface Integrity...
Machinability and Surface Integrity Part 1 ppt
... University.
.
Machinability and Surface Integrity
7
Machinability and Surface Integrity
‘It is common sense to take a method and try it.
If it fails, admit it frankly and try another. ... which it appears.
Machinability and Surface Integrity
Figure 144. The major factors that inuence a machined component’s condition.
Machinability and Surface In...
Machinability and Surface Integrity Part 3 pps
... the order to ‘break-rank’ (i.e randomising both their
pacing and steps) when proceeding over a structure such as a
bridge was mandatory.
Machinability and Surface Integrity
is either ‘pearled’ ... by either
Whitehouse (1997), or Smith (20 02) .
23 ‘Programmable and xed steadies’ are oen used to give addi-
tional support to the long and slender parts, to minimise ‘bar-...
Machinability and Surface Integrity Part 4 pps
... deviation of a sample from a production
batch run.
Machinability and Surface Integrity
depending upon whether a ne, medium, or coarse
surface texture is obligatory. Due to the variability ... such surface texture values do not reect the
likely in-service performance of the part. Neither the
surface topography, nor its associated integrity has
been quantied by assign...
Machinability and Surface Integrity Part 5 pot
... processes.
Machinability and Surface Integrity
the surface topography, if used in conjunction with the
Ra value (Fig. 164). is is particularly true for many
machining applications and where ... following
expression:
Machinability and Surface Integrity
the point, that all of these two-dimensional surface pa-
rameters can be classied into three distinct groupi...
Machinability and Surface Integrity Part 6 potx
... min
–1
and the
machinability trials used an in-cut time of just 6 seconds – in
order to maintain a sharp cutting edge on the tools.
Machinability and Surface Integrity
Figure 168. In face- and ... substituting σ (i.e. the standard deviation
of the distribution) with Rq, the beta-function param-
eters ‘a’ and ‘b’ become:
a =
Rv (Rv Rp – Rq
2
/Rt Rq
2
)
b =
Rp (Rv R...
Machinability and Surface Integrity Part 7 pptx
... 2. 8 1.8
Ground 0.1-0 .25 2- 4 1 .2 1.9 2. 8 1.8
Super-nished 0.03 0.4 1 .2 1.9 2. 8 1.8
* When
s/k is <0.5, an asperity is totally elastic – if the plasticity index is <5 and totally plastic ... insert surface texture and contact stress severity data.
← 10k
local
/E* [°] →
Tool finish: Surface texture data:
Al/HSS: Cu/HSS: Brass/WC Steel/WC
Ra [µm] ∆q [°]
CVD-coated 0...
Machinability and Surface Integrity Part 8 pps
... types of
machinability investigation. In the former case, it is
Machinability and Surface Integrity
Tool-life Diagrams
Machinability is a subject that has yet to be fully-de-
ned and analysed, ... appropriate cali-
Machinability and Surface Integrity
Figure 178. Multi-axis non-rotating dynamometers, used for: milling, drilling and turning
experimental data-ga...
Machinability and Surface Integrity Part 10 ppsx
... enter-
ing the surface leading to greater thermal damage and
poorer part surface integrity. e chemical mechanism
is dominant across all classes of production process to
some degree and that surfaces ... the component(s).
Machinability and Surface Integrity
Figure 185. The cross-section of an anisotropic (i.e. periodic) surface, illustrating surface contaminants (...