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Machineable materials include no
heat treated low carbon steels, and
alloys of Al, Brass, Bronze, Copper,
Nickel and non-metallic materials
excluding ceramics.
No
Machineable material?
Yes
No
Size and weight limits to be defined
by user.
Size & weight within limits?
Yes
No
Limit could be revised by user.
Material thickness ≥ 3 mm?
Yes
No
All drilling related
machining features?
Yes
No
Limits could be revised by user.
All hole dia between 3 to 40 mm?
Yes
No
Accuracy > 0.02 mm?
Limit could be revised by user.
Yes
No
Limit could be revised by user.
Surface roughness ≥ 0.08 µm?
Yes
Suitable for
SPM
Not suitable
for SPM
End
Fig. 9. Flowchart for technical feasibility analysis
3.2 Machining sequence planning
Properly determination of machining sequence is a key point in successful SPM
utilization. A poor machining sequence plan leads to lower quality of production and/or
increased machining times and consequently higher production costs. Often it is possible
to combine and perform a number of operations in a single setup lowering machining
times and costs while also improving production quality. Indeed machining sequence
planning determines the overall configuration of the machine and required machining
units and accessories.
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