User:SummJ9385/sandbox

Overview:

Metal casting has been used to make tools, weapons, and religious objects. These items were frequently made from a copper alloy laced with lead. In the early years of metallurgy the majority of castings were simple one to two piece molds fashioned from either stone or ceramics. However, there is evidence of lost wax castings in numerous ancient civilizations. MRS4H9 (talk) 01:19, 18 March 2020 (UTC) India:

Early civilizations discovered lead aided in the fluidity of molten copper, allowing them to cast more intricate designs. For example, the dancing girl of Mohenjo-daro is a copper alloy casting that most likely utilizes the lost wax technique. Lost wax casting can be dated back to 4000 BC or the Chalcolithic period. One of the oldest studied examples of this technique is a 6,000-year old amulet from Indus valley civilization. MRS4H9 (talk) 01:19, 18 March 2020 (UTC)

India is attributed as one of the first civilizations to use casting methods to mass produce coins. Around the middle of the first millennium BC (1000 BC - 1 BC), coins used were made from silver but as the millennium progressed the coins shifted to a cast copper alloy. New technology was developed to mass produce the new copper coins. MRS4H9 (talk) 01:19, 18 March 2020 (UTC)

In the Middle East and West Africa the lost wax technique was used very early in their metallurgy traditions while China adopted it much later. In Western Europe lost wax techniques are considered to have been hardly used especially in comparison to that of the Indus valley civilization. SummJ9385 (talk) 01:27, 18 March 2020 (UTC)

China:

There were no pieces of lost wax found in the capital of Anyang during the Shane dynasty (1600-1040 BC) while a large amount (100,000 pieces) of piece-mould fragments were found. This led to the conclusion that lost wax was not performed in the capital during this dynasty. However, the discovery of a mask made using the investment moulding dated at around 1300 BC indicated that the lost wax technique may have influenced other regions in China. SummJ9385 (talk) 01:27, 18 March 2020

Historians debate the origin of the development of the cannon but most evidence point toTurkey and Central Asia in the 18th and 19th century. The casting process of a cannon is a bit more complex with the use of a clay core, a template which has clay moulded around it and then broken out followed by an assembly in a casting pit that involves binding the casting with iron bands. SummJ9385 (talk) 21:01, 7 April 2020 (UTC)