Project

3D printing of wax patterns for the Lost Wax process

Publisher

Supervisor

Location

Greater Copenhagen area

Are you interested in studying optimisation of the 3D printing process? In that case, this project may be of interest to you.

The 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 various sorts.

3D 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.

Further, 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.

A 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.

We 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 surace quality.

We would also like students to develop fill-in structures for solid parts that minimise wax consumption and reduces thermal distortion to a minimum.






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Contact

Company / Organization

DTU Mekanik

Name

Niels Skat Tiedje

Position

Lektor

Mail

nsti@mek.dtu.dk

Supervisor info

BSc in Design & Innovation

Supervisor

Niels Skat Tiedje

ECTS credits

5 - 35

Type

Final project, Other, BSc project, Course project, MSc thesis, Course-related projects, Special course

BSc in Mechanical Engineering

Supervisor

Niels Skat Tiedje

ECTS credits

5 - 35

Type

Final project, Other, BSc project, Course project, MSc thesis, Course-related projects, Special course

Maskin

Supervisor

Niels Skat Tiedje

ECTS credits

5 - 35

Type

Final project, Other, BSc project, Course project, MSc thesis, Course-related projects, Special course

Mechanical Engineering

Supervisor

Niels Skat Tiedje

ECTS credits

5 - 35

Type

Final project, Other, BSc project, Course project, MSc thesis, Course-related projects, Special course

Production Engineering

Supervisor

Niels Skat Tiedje

ECTS credits

5 - 35

Type

Final project, Other, BSc project, Course project, MSc thesis, Course-related projects, Special course

MSc in Design & Innovation

Supervisor

Niels Skat Tiedje

ECTS credits

5 - 35

Type

Final project, Other, BSc project, Course project, MSc thesis, Course-related projects, Special course

MSc in Materials and Manufacturing Engineering

Supervisor

Niels Skat Tiedje

ECTS credits

5 - 35

Type

Final project, Other, BSc project, Course project, MSc thesis, Course-related projects, Special course

Technical University of Denmark

For almost two centuries DTU, Technical University of Denmark, has been dedicated to fulfilling the vision of H.C. Ørsted – the father of electromagnetism – who founded the university in 1829 to develop and create value using the natural sciences and the technical sciences to benefit society.


Today, DTU is ranked as one of the foremost technical universities in Europe, continues to set new records in the number of publications, and persistently increases and develops our partnerships with industry, and assignments accomplished by DTU’s public sector consultancy.

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Denmark



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