Metals have always been used in abundance for the different
manufacturing processes. Almost every industry makes use of metals for
production. The machines, spare parts, automobiles, electronic goods, and a lot
of other goods make use of metals. Metals usually undergo the casting process
to shape it into the given requirements and put into use. Precision casting is most commonly
used for the purpose. It is actually the first process that was used by man to
create intricate artifacts and metal parts. It is commonly used in the
aerospace industry for component production, and also plays a major part in
technology development.
Among the different kinds of precision
casting processes available, die casting is found to be most effective.
The advantages it has got over the other processes and the ease of production
make it preferred among most industries.
A precision die cast
is said to have the following benefits:
·
A number of finishing techniques
The casts created can be of a smooth and
textured surface, and can be easily plated and finished. The surface
preparation required is very little.
·
Weight
The castings made with the process are
lighter than those made with other processes.
·
Strength
The die casts are said to be stronger than
the moldings of same dimensions made from plastic injection techniques. They
have thinner walls and are much stronger than all other casting processes.
These die castings do not have any separate parts that are fastened or welded.
So, the strength they have is of the alloy, and not the joining process.
·
Assembly is simpler
Bosses, studs, and other integral fastening
elements are provided by the die castings. It is possible to core holes and tap
them to drill sizes. External threads can also be cast.
·
Accuracy
Close tolerances can be maintained for all
the precision
die cast elements. They maintain high rates of accuracy.
·
Stable
Stability is a very important factor of die
cast products. They are dimensionally stable and highly durable. They are even
known to be heat resistant.
·
High production rate
Complex shapes with really close tolerances
can be provided by the die casting method. The tolerance achieved is higher
than all other mass production processes. You require very little or no
machining at all. Before any additional is required, thousands of identical
castings can be produced.
Different kinds of elements and alloys can be used to
produce parts using the precision die casting process. Commonly used ones are
zinc, aluminum and magnesium. As compared to all other processes, you get
highly accurate and good quality metal parts from this process. That is the
reason why most industries prefer to use this process over all the other
processes available for mass production.
