Process Of Manufacturing A Mould Design
An injection mould is the key to
creating a successful one-piece finished plastic or metal component. Melted
material is forced from the injection moulding machine into the mould (which is
usually cool) where it sets. The result is a solid piece of the material which
may be a component to, or the whole of, a finished product.
Injection moulds,
or dies, have two halves that, when combined, create a whole that contains a
hollow. It is into this hollow that the hot plastic or metal is injected and
cooled, resulting in an exact physical copy of the 3D model. The two halves are
commonly referred to as the mould core and mould cavity. The mould core
corresponds to the inside surface area of the finished product, whereas the
mould cavity corresponds to the outside surface area. The line which divides the
two halves of the mould is called the parting line. This must be carefully
chosen and designed around so as to allow the mould to separate properly.
Serious damage can be caused if the mould contains an undercut or overcut,
caused by a protruding portion of the mould which snags on the mould core or
mould cavity respectively. There are countless ways to work around these design
limitations.
An injection mould may seem a simple tool Rigid flex PCB, but the complexity of
the modern injection mould goes way beyond putting two hollows together to
create a whole. Injection moulds are highly advanced pieces of technology. Once
programmed, they are able to run autonomously day in and day out without any
assistance. Moulds are set up with their own feeding system for the raw plastic
and temperature control system to measure with precision exactly how the
material is maintained - heated for injection and cooled for setting. They
contain ejector systems to release the parts once they are complete. All of
these systems reduce the need for personnel and can be left to run overnight,
reducing costs dramatically.
As with any product, the quality of the mould
design and materials used dictates the quality and consistency of the parts that
they will produce. Sundry plastic items like free coat hangers from department
stores or DVD cases will be relatively cheaply produced as they will be made by
the thousands, the quality of materials will not be considered a worthwhile
investment and the variance in consistency will be negligible. For more
consumer-attractive products, such as the dashboard for a limited edition car,
the manufacturers will be certain that the plastic is of a high quality to
ensure consistency and quality in their product.
Plastic injections moulds
are based on a basic idea that has been refined to an art. Adaptable and so
often used, the products created in injections moulds are all around us.There
are different types of mould designs like Rubber Mould Design, Plastic Mould
Design, Metal Mould Design, etc
Dienamics is the only company in Brisbane to
offer the complete service of Industrial Design, Toolmaking and Manufacturing.
We specialise in the custom moulding of components using engineering
thermoplastic resins
For more information visit Prototype
PCB
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