Precious metal processing

Various processing methods on precious metals such as gold, silver and platinum.

precious metals processing
processing of precious metals
processing platinum
processing gold
methods for processing precious metal
processing of precious metal
processing precious metal
processing silver
processing precious metals
precious metal processing methods

knowledge

sector-specific

Precious metal processing is an essential knowledge of the following occupations:

Metallurgical technician: Metallurgical technicians provide technical support in researching and performing experiments on minerals, metals, alloys, oil and gas. They also assist in improving the methods of extraction.
Chemical metallurgist: Chemical metallurgists are involved in the extraction of useable metals from ores and recycleable material. They study the properties of metal, such as corrosion and fatigue.
Process metallurgist: Process metallurgists study the characteristics of ores including copper, nickel and iron ores and the performance of various metals and alloys. 
Jewellery mounter: Jewellery mounters create the framework for a piece of jewellery, on which the precious stones are added to later.
Metallurgist: Metallurgists specialise in the extraction and processing of metals such as iron, steel, zinc, copper and aluminium. They work to mold or combine both pure and mixed metals (alloys) into new shapes and properties. Metallurgists handle the extraction of metal ores and develop their use in metal processing techniques. They may work in both manufacturing or do scientific research about the performance of metals.

Precious metal processing is optional for these occupations. This means knowing this knowledge may be an asset for career advancement if you are in one of these occupations.

Metal drawing machine operator: Metal drawing machine operators set up and operate drawing machines for ferrous and non-ferrous metal products, designed to provide wires, bars, pipes, hollow profiles and tubes with their specific form by reducing its cross-section and by pulling the working materials through a series of drawing dies.
Solderer: Solderers operate various equipment and machinery such as gas torches, soldering irons, welding machines, or electric-ultrasonic equipment in order to solder together two or more items (usually metals), by melting and forming a metal filler in between the joints, the filler metal has a lower melting point than the adjoining metal. 
Engraving machine operator: Engraving machine operators set up, programme, and tend engraving machines designed to precisely carve a design in the surface of a metal workpiece by a diamond stylus on the mechanical cutting machine that creates small, separate printing dots existing from cut cells. They read engraving machine blueprints and tooling instructions, perform regular machine maintenance, and make adjustments to the precise engraving controls, such as the depth of the incisions and the engraving speed.
Tumbling machine operator: Tumbling machine operators set up and operate tumbling machines, often wet or drie tumbling barrels, designed to remove excess material and burrs of heavy metal workpieces and precious metals and to improve surface appearance, by rotating the metal pieces in a barrel together with grit and potentially water, allowing for the friction between the pieces mutually and with the grit to cause a rounding, smooth effect.
Casting machine operator: Casting machine operators operate casting machines to manipulate metal substances into shape. They set up and tend casting machines to process molten ferrous and non-ferrous metals to manufacture metal materials. They conduct the flow of molten metals into casts, taking care to create the exact right circumstances to obtain the highest quality metal. They observe the flow of metal to identify faults. In case of a fault, they notify the authorised personnel and participate in the removal of the fault.
Casting mould maker: Casting mould makers create metal, wooden or plastic models of the finished product to be cast. The patterns are then used to create moulds, eventually leading to the casting of the product of the same shape as the pattern.
Mouldmaker: Mouldmakers manually create moulds for the production of metal products. They mix sand and hardening materials to obtain a specialised mixture. They then use a pattern and one or more cores to produce the right shape impression in this material. The shaped material is then left to set, later to be used as a mould in the production of ferrous and non-ferrous metal castings.
Computer numerical control machine operator: Computer numerical control machine operators set-up, maintain and control a computer numerical control machine in order to execute the product orders. They are responsible for programming the machines, ensuring the required parameters and measurements are met while maintaining the quality and safety standards.
Laser marking machine operator: Laser marking machine operators set up and tend laser marking or engraving machines designed to precisely carve a design in the surface of a metal workpiece by use of a moving controller and an engraving laser beam point attached to it that traces patterns on the metal workpiece’s surface. They make adjustments to the machine in terms of laser beam intensity, direction and speed of movement. They also ensure the laser table, used to perform laser machine engravings on and guides the laser beam, is properly set up.
Metal engraver: Metal engravers make incisions of a design onto a metal surface by carving grooves into it, usually for decorative purposes, including metal weaponry. To cut the design into the surface they use tools such as gravers or burins.

 
Mechanical forging press worker: Mechanical forging press workers set up and tend mechanical forging presses, designed to shape ferrous and non-ferrous metal workpieces including pipes, tubes and hollow profiles and other products of the first processing of steel in their desired form by use of preset, compressive forces provided by cranks, cams and toggles at reproducible strokes.
Ornamental metal worker: Ornamental metal workers use finishing equipment and machinery to shape and finish fabricated ornamental metal workpieces, often used for the installation process in construction, such as railings, staircases, open steel flooring, fences and gates, and others.
Foundry moulder: Foundry moulders manufacture cores for metal moulds, which are used to fill a space in the mould that must remain unfilled during casting. They use wood, plastic or other materials to create the core, selected to withstand the extreme environment of a metal mould.
Metal polisher: Metal polishers use metal working equipment and machinery to polish and buff almost finished metal workpieces in order to enhance their smoothness and appearance and to remove oxidisation, tarnishing the metal after the other fabrication processes. They may operate equipment using diamond solutions, silicon-made polishing pads, or working wheels with a leather polishing strop, and tend to these materials ensuring their effectiveness.
Swaging machine operator: Swaging machine operators set up and tend rotary swaging machines, designed to alter round ferrous and non-ferrous metal workpieces into their desired shape by first hammering them into a smaller diameter through the compressive force of two or more dies and then tagging them using a rotary swager, a process through which no excess material is lost.
Foundry operative: Foundry operative manufacture castings, including pipes, tubes, hollow profiles and other products of the first processing of steel, by operating hand-controlled equipment in a foundry. They conduct the flow of molten ferrous and non-ferrous metals into moulds, taking care to create the exact right circumstances to obtain the highest quality metal. They observe the flow of metal to identify faults. In case of a fault, they notify the authorised personnel and participate in the removal of the fault.
Jewellery polisher: Jewellery polishers ensure that finished jewellery pieces are cleaned by customer demand or prepared for sale. They may also perform minor repairs. They use either hand tools such as files and emery paper buff sticks and/or hand held polishing machines. They also use mechanised polishing machines such as barrel polishers. 
Blacksmith: Blacksmiths heat metal, usually steel, in a forge and shape it with a hammer, chisel, and an anvil. Contemporarily, they predominantly create artisanal metal products, including ornamental work, as well as horse shoes, one of the sole metal fabricating processes that has not been industrialised.

References

1. Precious metal processing – ESCO