Apply metallurgy practices to jewellery or silversmithing work

This standard covers the skills required to practice metallurgy methods relating to jewellery or silversmithing work being undertaken.  You will select and prepare different metal alloys and apply specialist techniques such as rolling, hammering, fluxing, soldering and polishing to your design work. You will need to take into account microstructural changes and porosity and be able to assess common faults with lost wax investment casting and ways to avoid these.

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1. describe the microstructural changes during solidification, cold working and annealing in line with industry best practice
2. select different precious metal alloys to meet the needs of specific projects in line with industry best practice
3. calculate the amounts of precious metal alloys to make a specific alloy composition in line with project needs
4. practice rolling, hammering, fluxing, soldering and polishing techniques in line with industry best practice
5. check porosity in line with project needs
6. take preventative action against porosity in line with project needs
7. assess common faults associated with lost wax investment casting in line with project needs
8. take preventative action against common lost wax casting faults in line with project needs

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1. ​terminology used by the jewellery and silversmithing industry
2. safety precautions to be taken when applying metallurgy practices
3. processes of re-crystallization after melting and annealing
4. physical and mechanical properties of cast and cold worked metal
5. theories and techniques of rolling, hammering, fluxing, soldering and polishing
6. physical and mechanical properties of a range of metals
7. differences in the physical properties of precious metals compared to their alloys
8. differences in the mechanical properties of precious metals compared to their alloys
9. how to calculate precious metal alloys
10. absorption and expulsion of gasses during the melting and annealing processes
11. causes of contamination when melting and annealing metal
12. expansion and contraction of metal during the annealing and quenching process
13. theories and practice of carrying out pickling safely and effectively
14. causes and prevention of porosity particularly in lost wax investment casting
15. consequences of not initiating corrective action when porosity is identified 
16. hazards and risks pertaining to the metallurgical process as it impacts on the jewellery manufacture
17. how precious metal alloys are stamped according to assay requirements 
18. the consequences of incorrect identification and calculation of precious metal alloys

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2

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14 Aug 2018

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Current

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Original

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Creative & Cultural Skills

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CCSJ3.4

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Design Associate Professionals, Skilled Trades NEC

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5449

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Jewellery; design; technique; production; metallurgy; properties; silversmithing; manufacture; metal; metals

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