berkaitan dg mata kuliah Proses Produksi with Dr.Eng.Ir. RUDI SUHRADI RACHMAT, M.Eng
Die casting is a manufacturing process that can produce geometrically complex metal parts through the use of reusable molds, called dies. The die casting process involves the use of a furnace, metal, die casting machine, and die. The metal, typically a non-ferrous alloy such as aluminum or zinc, is melted in the furnace and then injected into the dies in the die casting machine. There are two main types of die casting machines – hot chamber machines (used for alloys with low melting temperatures, such as zinc) and cold chamber machines (used for alloys with high melting temperatures, such as aluminum). The differences between these machines will be detailed in the sections on equipment and tooling. However, in both machines, after the molten metal is injected into the dies, it rapidly cools and solidifies into the final part, called the casting. The steps in this process are described in greater detail in the next section.
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Die casting hot chamber machine overview |
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Die casting cold chamber machine overview |
The castings that are created in this process can vary greatly in size and weight, ranging from a couple ounces to 100 pounds. One common application of die cast parts are housings – thin-walled enclosures, often requiring many ribs and bosses on the interior. Metal housings for a variety of appliances and equipment are often die cast. Several automobile components are also manufactured using die casting, including pistons, cylinder heads, and engine blocks. Other common die cast parts include propellers, gears, bushings, pumps, and valves.
Jan 20, 2013 @ 09:51:17
mhon info dan masukan nya.
saya pernah melakukan proses casting, tapi sering kali terdapat kegagalan pada hasil nya (sirip, ada nya centilan, keropos, atau hasil mudah patah, bahkan kerap kali menimbulkan warna di luar warna yang yg tidak sesuai). untuk jenis material yang saya gunakan adalah zinc dengan segala sesuatu nya sudah sesuai dengan standar seperti suhu peleburan, tekanan,,
menurut analisa saya kegagalan tersebut terdapat pada susu material dan ruang yang tidak stabil, tercampur dengan unsur lain (tidak murni), dan spray yg digunakan untuk melepaskna hasil produk dengan dies, dll. tetapi sya punya kesulitan ketika menganalisa kegagalan dalam warna (warna hasil produk tidak sesuai), mohon info apa faktor untuk kegagalan tersebut apakah faktor mekanik atau spray yg digunakan atau ada kemungkinan faktor lain.
terima kasih
nofri.kurniawan99@gmail.com
SukaSuka
Jan 20, 2013 @ 10:12:26
saya coba tanyakan ke dosen saya dulu,
SukaSuka