Answer Happy

What are some of the advantages of machining compared to
investment casting: (a) capable of creating more complex parts, (b)
capable of processing more types of materials, (c) can enhance the
mechanical properties of the processed materials, (d) capable of
higher dimensional accuracies, (e) fabricated part does not require
secondary post-processing, (f) better surface finish.
What are some of the signs of excessive tool wearing in
machining operations: (a) large humming noise; (b) large amount of
energy consumption; (c) reduced surface finish during steady
production; (d) warmer parts; (e) increased chattering of tools;
(f) loss of dimensional accuracy.
Which additive manufacturing processes use powder as feedstock:
(a) selective laser sintering, (b) material extrusion, (c) vat
photopolymerization, (d) electron beam melting, (e) material
jetting, (f) binder jetting, (g) direct write?
What are some of the challenges with additive manufacturing in
general? (a) cannot make parts of near-full density; (b) wasteful
of materials; (c) long fabrication times; (d) high initial
investment cost; (e) cannot use fiber-reinforced composite
material.