CCSJ4.3 Apply your advanced knowledge of metallurgy to jewellery or silversmithing work Overview This unit covers the skills and knowledge required to apply a good knowledge of metallurgy to the work that you undertaking. You will be expected to select and prepare the materials for your work and apply specialist techniques to your work. CCSJ4.3 Apply your advanced knowledge of metallurgy to jewellery or silversmithing work 1 CCSJ4.3 Apply your advanced knowledge of metallurgy to jewellery or silversmithing work Performance criteria You must be able to: P1 carry out the annealing process on a range of materials P2 carry out the quenching process P3 carry out the pickling process P4 carry out hammering of a range of materials P5 carry out rolling of a range of a range of materials P6 carry out fluxing and de-oxidising of a range of materials P7 identify porosity and take preventative action P8 carry out identification of precious metal alloys P9 carry out soldering of a range of materials P10 identify the problems associated with lost wax investment casting P11 identify the metal porosity that can result from lost wax investment casting CCSJ4.3 Apply your advanced knowledge of metallurgy to jewellery or silversmithing work 2 CCSJ4.3 Apply your advanced knowledge of metallurgy to jewellery or silversmithing work Knowledge and understanding You need to know and K1 terminology used by the industry understand: K2 the physical and mechanical properties of a range of metals K3 the differences in the mechanical properties of precious metals compared to their alloys K4 re-crystallization after melting and annealing K5 the absorption and expulsion of gasses during the melting and annealing processes K6 the causes of contamination when melting and annealing metal K7 the expansion and contraction of metal during the annealing and quenching process K8 the theory and practice of rolling, hammering, fluxing, soldering and polishing K9 the theory and practice of carrying out pickling safely and effectively K10 the causes and prevention of porosity particularly in lost wax investment casting K11 the consequences of not initiating corrective action when porosity is identified K12 how precious metal alloys are stamped according to assay requirements K13 the consequences of incorrect identification, calculation and stamping of precious metal alloys CCSJ4.3 Apply your advanced knowledge of metallurgy to jewellery or silversmithing work 3 CCSJ4.3 Apply your advanced knowledge of metallurgy to jewellery or silversmithing work Developed by Creative and Cultural Skills Version number 1 Date approved April 2010 Indicative review April 2012 date Validity Current Status Original Originating Creative and Cultural Skills organisation Original URN J4.3 Relevant Mathematics and statistics; Engineering and manufacturing technology; Crafts, occupations creative arts and design; Science and Engineering Technicians; Artistic and Literary Occupations; Metal Forming, Welding and Related Trade Suite Jewellery Manufacture, Silversmithing and Allied Trades Key words metallurgy, silversmithing, goldsmith, jewellery, gold, silver, precious metal CCSJ4.3 Apply your advanced knowledge of metallurgy to jewellery or silversmithing work 4 .