Aluminium Alloy Die casting Product with Polishing Finish
发布时间: 2018-12-12 13:59
Injection mold construction11
Die casting is
a metal casting process
that is characterized by forcing moltenmetal under
high pressure into a mold cavity.
The mold cavity is created using two hardened tool steeldies which
have been machined into shape and work similarly to an injection mold during
the process. Most die castings are made from non-ferrous metals,
specifically zinc, copper, aluminium, magnesium, lead, pewter,
and tin-based
alloys. Depending on the type of metal being cast, a hot- or cold-chamber
machine is used.The casting equipment and the metal dies represent large
capital costs and this tends to limit the process to high-volume production.
Manufacture of parts using die casting is relatively simple, involving only
four main steps, which keeps the incremental cost per item low. It is
especially suited for a large quantity of small- to medium-sized castings,
which is why die casting produces more castings than any other casting process. Die
castings are characterized by a very good surface finish (by
casting standards) and dimensional consistency.
