you interested in studying optimisation of the 3D printing process? In that
case, this project may be of interest to you.
lost wax technology is used in our laboratories for research in special
materials and to investigate effects of controlled solidification on the
structure and properties of metals. We also use it to produce protptypes of
printing can be a straightforward method to produce wax patterns that are used
to make ceramic shells for lost wax castings. However, it is well known that
printing wax is difficult because of its low melting point that restricts the
printing temperature putting restrictions on printing speed and –strategy.
when the shell is produced using the printed wax pattern, the difference in
thermal expansion between the two materials often leads to cracking of the
shell. Some of this can be avoided by optimising the heating procedure for wax
removal, but still cracking is a common problem.
solution to this coud be to print wax patterns with an internal structure that
allows thermally induced stresses to be relieved internally in the pattern so
that the shell is left stress-free during heating.
would like students to investigate and optimise printing procedures for wax
materials in filament printers. This includes optimisation of proces parameters
with regard to printing speed accuracy of printed parts and optimisation of
would also like students to develop fill-in structures for solid parts that
minimise wax consumption and reduces thermal distortion to a minimum.