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Tutorial: Engineering technology Topic: Precision investment casting Prepared by: Ing. Elena Nová Projekt Anglicky v odborných předmětech, CZ.1.07/1.3.09/04.0002.

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Prezentace na téma: "Tutorial: Engineering technology Topic: Precision investment casting Prepared by: Ing. Elena Nová Projekt Anglicky v odborných předmětech, CZ.1.07/1.3.09/04.0002."— Transkript prezentace:

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2 Tutorial: Engineering technology Topic: Precision investment casting Prepared by: Ing. Elena Nová Projekt Anglicky v odborných předmětech, CZ.1.07/1.3.09/ je spolufinancován Evropským sociálním fondem a státním rozpočtem České republiky.

3 Precision investment casting

4  Moulds for investment casting are made from easy melt-able materials like is wax or plastics.  Thanks to high temperature used during forming difficult moulds with small diameters and smooth surfaces can be made.  Moulds are accurate with smooth surface.

5  1) Manufacturing of forms for moulds.  2) Manufacturing of wax moulds.  3) Cluster casting of moulds.  4a) Manufacturing of shell moulds – soaking  of moulds into casting slip.  4b) Manufacturing of shell moulds –  powdering of wax moulds with refractory  material  5) Extraction of wax moulds.

6  6) Shell firing  7) Melting and Casting  8) Ceramic disposal  9) Parting of moulds from gating system  - cutting  10) Disposal of gating from moulds  – grinding  11) Completion work – sand blasting,  grinding, polishing  12) Monitoring

7  For wax mould manufacturing is used few wax mixtures differentiating according to final use and physical quality.  Wax for moulds – clean (non filled)  - filled  - emulsified  Waxes for gating systems  Re-cultivated waxes  Special waxes – adhesiv  - soaking  - reparative  - wax cores  - soluble waxes

8  20liti%20na%20vytavitelny%20model.pdf 20liti%20na%20vytavitelny%20model.pdf 


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