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Shaping metal with a hammer is the archetypical component of smithing. Often the hammering is done while the metal is hot, having been heated in a forge . Smithing can also involve the other aspects of metalworking , such as refining metals from their ores (traditionally done by smelting ), casting it into shapes ( founding ), and filing to ...
Permanent mold casting is a metal casting process that employs reusable molds ("permanent molds"), usually made from metal. The most common process uses gravity to fill the mold. However, gas pressure or a vacuum are also used. A variation on the typical gravity casting process, called slush casting, produces hollow castings.
The converting process occurs in a converter. Two kinds of converters are widely used: horizontal and vertical. Horizontal converters of the Peirce-Smith type (which are an improvement of the Manhès-David converter ) prevail in the metallurgy of non-ferrous metals. Such a converter is a horizontal barrel lined with refractory material inside.
Traditional metal working in Mexico dates from the Mesoamerican period with metals such as gold, silver and copper. Other metals were mined and worked starting in the colonial period. The working of gold and silver, especially for jewelry, initially declined after the Spanish conquest of the Aztec Empire. However, during the colonial period ...
Walmart is keeping track of its 100 most popular deals for Black Friday weekend, including TVs, AirPods, HP laptops, and more.
A red-hot metal workpiece is inserted into a forging press. Plastic deformation involves using heat or pressure to make a workpiece more conductive to mechanical force. Historically, this and casting were done by blacksmiths, though today the process has been industrialized. In bulk metal forming, the workpiece is generally heated up. Cold ...
An Arizona produce company is recalling whole cucumbers distributed in 26 states and Canada because they could contain salmonella. In a filing posted by the Food and Drug Administration on ...
As the 2024 holiday season is in full swing, make room for creative gifting when starting your seasonal shopping list. Of course, store-bought trinkets, gadgets, and apparel are the expected norms ...