In considering injection moulding as a prototyping solution, there
are many factors that have to be addressed and many alternatives
that must be considered. The most important issue to consider is
whether the production intent material is really a requirement, if
it is, then understanding the available time and attention to the
CAD model are both paramount.
Tolerances vary depending on material, filler, tooling strategy,
geometry etc. It is always recommended to identify critical
dimensions and make these available at the quotation phase.
Minimum Feature Size
With the advent of micro moulding any comments on minimum feature
sizes became redundant! This is linked to a number of features in
the geometry as well as the tooling strategy selected.
The most common sized moulding machine is around 80 tonnes, and
access to presses up to 250 tonnes is straightforward. From 250 to
1000 tonnes access becomes more difficult and more expensive, but
Negligible post processing is usually required, unless quantities
are sufficiently low that some features are to be post machined to
minimise tooling costs. Resins are pigmented and any texturing is
included in the tooling.
Some critical issues to clarify before searching for tooling are
1. The realistic leadtime that you seek. Speed will cost a premium,
so an accurate appreciation of the available leadtime after making
allowances for the time to raise a purchase order, is a necessity.
2. The number of parts required both initially and over the life of
the tool. This is important as if the initial batch is small enough
it may be more economic to meet each requirement from a different
3. Critical dimensions and their associated tolerances as these may
preclude some approaches immediately.
4. Textures, are they required and if so where and to what
5. Changes will frequently occur and most suppliers acknowledge
this. However, if there are recognised areas of high risk within
the tool, these should be highlighted to the supplier. This may
result in a different approach and save time later on, if changes
are indeed required.
6. Materials, evaluating different materials (or fillers) may be a
possibility so long as there is an appreciation of the effect this
can have on shrinkage and hence dimensional accuracy.
If you are new to injection moulding it is best to involve a
supplier from an early stage as this will ensure that the design
matures as efficiently as possible and avoids any last minute
We provide very low cost Rapid Plastic Molds and Plastic Molding to
challenge some high quantity vacuum casting applications and
delivery can come down to 2 weeks or less. These two issues cannot
always be achieved simultaneously, however injection moulding must
now be considered as a prototyping solution with the potential to
also address early production requirements.
The greatest upside to using this process is that it delivers the
production intent material and, once the tooling is in place, parts
are available quickly and at low cost.
AIRCRAFT MODEL STAR(INTERNATIONAL) CO., LIMITED founded in 2011,at
DongGuang GuangDong, 2000 square meters',Specialize
in,develop,produce,Foreign trade,rc model,plane model,quad copter
UAV plane,precision component metal accessories process etc.
Aircraft model star( international) co., limited from ZXmade team.
ZXTECH (HK) CO.,LTD was set up by Doctor Yang (Young) in March, 2005. ZXTECH started rapid tooling manufacturing since
it was founded and got involved in rapid CNC prototyping one year
later, after another year endeavor, ZXTECH decided to focus on
rapid precision engineering for complex prototyping to improve its
competitiveness, which has led the Chinese RP field since the
second half year of 2007. Now, ZXTECH has combined rapid tooling,
rapid prototyping and rapid precision engineering technologies in
the rapid manufacturing field, which is unique in China. In
September, 2008, a very famous western-owned prototyping company
found ZXTECH and made ZXTECH as their key supplier for precision
prototyping, metal forming and machined extrusion parts for
exports. This has helped ZXTECH greatly in improving their quality
standards and management to meet standards, international standard,
but with 100% Chinese costing.
Please do not hesitate to contact us for more details: firstname.lastname@example.org skype: yuping8510