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  2. Chisel - Wikipedia

    en.wikipedia.org/wiki/Chisel

    A cold chisel is a tool made of tempered steel used for cutting 'cold' metals, [2] meaning that they are not used in conjunction with heating torches, forges, etc. Cold chisels are used to remove waste metal when a very smooth finish is not required or when the work cannot be done easily with other tools, such as a hacksaw, file, bench shears ...

  3. Rewari metal work - Wikipedia

    en.wikipedia.org/wiki/Rewari_metal_work

    Other than this to join the shaped pieces of various utensils soldering materials "suhaga" (it is a mixture of borax and water used to join metal pieces), brass, copper and zinc are used. Industries mainly copper & brass rolling mills are continuously producing best quality coils, strips, sheets, plates, and circles by the hot rolling and cold ...

  4. Brass - Wikipedia

    en.wikipedia.org/wiki/Brass

    Islamic Golden Age brass astrolabe Brass lectern with an eagle. Attributed to Aert van Tricht, Limburg (Netherlands), c. 1500.. Brass is an alloy of copper and zinc, in proportions which can be varied to achieve different colours and mechanical, electrical, acoustic and chemical properties, [1] but copper typically has the larger proportion, generally 2 ⁄ 3 copper and 1 ⁄ 3 zinc.

  5. Metallurgy in pre-Columbian America - Wikipedia

    en.wikipedia.org/wiki/Metallurgy_in_pre...

    Copper was traditionally regarded as sacred by many historic period Eastern tribes. Copper nuggets are included in medicine bundles among Great Lakes tribes. Among 19th century Muscogee Creeks, a group of copper plates carried along the Trail of Tears are regarded as some of the tribe's most sacred items. [57]

  6. Arsenical bronze - Wikipedia

    en.wikipedia.org/wiki/Arsenical_bronze

    Egyptian and Nubian objects made of arsenical copper were identified in the collections in Brussels, [16] and in Leipzig. [17] In the Middle Kingdom, use of tin bronze is increasing in ancient Egypt and Nubia. [18] One of the largest studies of such material was the research of the Egyptian and Nubian axe blades in the British Museum, and it ...

  7. Tombac - Wikipedia

    en.wikipedia.org/wiki/Tombac

    Piggot states the brass used for machinery and locomotives in England was composed of copper 74.5%, zinc 25%, and lead 0.5%, which would make it a tombac according to Ure. [6] Piggot's own definition of tombak is problematic at best: "red brass, or tombak, as it is called by some, has a great preponderance of copper, from 5 ounces of zinc down ...

  8. Metals of antiquity - Wikipedia

    en.wikipedia.org/wiki/Metals_of_antiquity

    Copper was probably the first metal mined and crafted by humans. [8] It was originally obtained as a native metal and later from the smelting of ores. Earliest estimates of the discovery of copper suggest around 9000 BC in the Middle East. It was one of the most important materials to humans throughout the Chalcolithic and Bronze Ages.

  9. Repoussé and chasing - Wikipedia

    en.wikipedia.org/wiki/Repoussé_and_chasing

    Many metals can be used for chasing and repoussé work, including gold, silver, copper, and alloys such as steel, bronze, and pewter. These techniques are very ancient and have been extensively used all over the world, as they require only the simplest tools and materials, and yet allow great diversity of expression.

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