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The following article was published in our article directory on June 11, 2015.
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Die Casting used in Audio Parts

Article Category: Business

Author Name: Castings Aluminum

Casting Metal Parts is a process that involves making metal parts by melting metal and forcing them into steel molds. It is one of the original and most important methods in metal developing, a common process in the manufacturing industry.

The first recorded use of this process dates back to 1838, where die casting was used to create equipment (movable type) in the printing industry. Patent rights for the device were awarded in the same year to a man named Sturges, the inventor of the first manually controlled casting print type. By the next century, the commercial production and use of die casting spread widely in multiple countries. Currently, after several years of being present in the manufacturing trade, die casting showed to be extremely useful in many other trades such as in manufacturing parts for sound speakers, pump housing, vehicles and show light fixtures.

The manufacturing approach helps in producing simple and complicated metal parts for different devices. However, before the production of parts can begin, it is necessary to ensure that the mold is precise, so that the resulting metal part is workable.

To create the parts, non-ferrous metals like copper, aluminum or zinc should be used. Take note that working with these metals for die casting is quite difficult. Aluminum is rarely used well in its pure form while zinc should be used in critical ratios with aluminum. An example of the common application of this procedure is audio speaker parts die casting.

Before audio speaker parts die casting became popular, developers worked with plastic parts produced via soft molds to become frames and fixtures for speakers. Though they are relatively less expensive and easier to manufacture than using aluminum for sound speaker parts die casting, plastic needs a lot of treatment in order to attain the right toughness. Moreover, these plastic parts were later discovered to have toxic effects, and they were not practical in terms of recyclability. Hence, manufacturers moved to using aluminum for audio speaker parts die casting.

The toughness and durability of aluminum make it better for sound speaker parts die casting. These features of aluminum permit it to have more elasticity and less bitterness after undergoing cold-chamber sound speaker parts die casting. It is also not heavy, making speaker units as lightweight as they could be.

Audio speaker parts die casting makes metal parts by yielding aluminum under high pressure molding. After melting the metal, it is put into a pair of dies or molds which will later on be pressed together under 10 to 175 megapascals (about 1450 to 25,831 psi) - depending on the size of a given part - until the metal returns to its solid form. The resulting metal part is now stiff and non-toxic - it can easily be undone and reused whenever needed.

Most of the parts used in audio speakers that undertook die casting include the back and top plates, the spider, the coil and the pole. The price of creation for these parts starts from as low as 10 cents per piece in the US.

Keywords: die castings manufacturing parts tooling aluminum zinc production

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