|  CAMSAD
- Computer Aided Material Selection
and Design
Computer aided material selection and design using expertise
to provide the optimum material in technical applications.
For further information please complete and submit the appropriate
design guide:
• Bearing Design Guide
• Gear Design Guide
• Monocast Polyamide Cable Sheaves
• RITA
- Röchling's Integrated Tank Building Assistant
CAD/CAM Design and Manufacture
Dotmar have technical people available to assist you in the
early brain-storming stages of your design. Additionally, the focus
and knowledge of Dotmar will help you use the best engineering thermoplastic
for your applications.
CNC Machining - Milling, Routing, Spindle
Moulding
Dotmar has a team of highly trained engineering machinists who
work exclusively with Polymers on state of the art equipment. CNC
machining supported by well developed CAD/CAM systems form the backbone
of Dotmar's advanced capabilities in the production of technical
engineering components.
Dotmar Materials and Capabilities
With the ever changing face of engineering comes the need to
"step-up" the search for new materials and improved ways to make
products to suit applications and opportunities. Throughout the
five Dotmar distribution locations around Australia you will find
the personnel ready to discuss the next generation in applications
for FluoroPolymers and Thermoplastics.
Custom Engineering
- Technical Centres
Machining facilities equipped with "state of the
art" equipment converting Stock Shapes to Finished Parts are
available both in-house and through highly specialised and competent
Engineering "Partner" Technical Centres across Australia.
Things to Watch - Machining of Plastics
-
Keep heat to a minimum and ensure heat build-up in the part is
avoided.
- Keep tools sharp at all times.
- Ensure
that only the cutting edge contacts the material.
- Apply
coolants (per guidelines) where heat is generated.
- The
lower rigidity of plastics may require support or plugging to
avoid deflection in thin walled sections.
- Cutting
tools should be high speed steel or carbide tipped for production
runs, especially on graphite or glass filled materials.
- Machining
Tolerance
- It
is much larger than for metal.
- Watch
stress relieving where a large body of material is removed.
- Thermal
conditioning may be required after pre-machining on some parts.
- Allow
a tolerance of 0.1 - 0.2% of nominal size.
- Be
aware of thermal expansion in larger parts or panels where
fixings are required.
- Refer
"Solutions" on this website.
- Minimum
tolerance for small dimensions 0.05mm.
- Speed
and Feed charts and other support information is available form
Dotmar.
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