- Part Design is important for function, market
success and can improve cost effectiveness
- New Part Designs / How to find them?
- Idea for new part properties / function
- But how to build the part?
- Designer / manufacturer discussion
- Dialog customer / mould maker / machine builder
- Networking for new solutions:
- competent partners are necessary
- and people to bring them together
- And somebody who is willing to take the risk
- Dialog customer / mould maker / machine builder
- Networking for new solutions:
- competent partners are necessary
- and people to bring them together
As we have gone through what is part design and mould
technologies let us have some case studies on it.
Case Studies 1
High-precision Medical Part:
Project REGUFLO with Smiths Medical:
Goal: New product for precise control of gravity driven
infusion
|
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more than 80% of the infusion
procedures is done gravity driven usually roller
clamp is used |
| Roller Clamp: roller clamp gives
pure accuracy of flow control with +/- 50%
Flow changes with material relaxation
readjustment is necessary |
 |
| Project REGUFLO: "
Infusion set REGUFLO
" Flow control in the range from 2- 350 mL/h
" Flow rate with 10% accuracy adjustable
" Liquid tight system
" Flow controlled via microstructure |
|
REGUFLO - The Device
| ACCURACY
b = 200 µm
with 5 µm tolerance
h = 200 -0 µm with 5 µm tolerance
In 4 different cavities |
|
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5 diameters of rotation axis:
Ø 7, 5 with 20 µm tolerance
Ø 9, 0 with 20 µm tolerance
on final part |
Moulds:
- 4-cavity moulds (all 3 parts)
- Full hot runner
- Needle shut off gating
- Buried slides for micro channel contour with
parting line across the channel structure
|
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Assembly of REGUFLO:
- Quality control of single parts
- Pad printing of scale on connector body
- Surface treatment of rotary element
- Assembly
- Quality tests (tightness and torque)
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