ESA Tinkercad 2020: Difference between revisions
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(Created page with "== INtroduction == == Catia Cardoso == Materials and processes for space. Challenges for space materials and procesesses. * Low mass (when launched from Earth) * Small production series * Very high reliability * Limited manufacturing processes (automation) * Small to large geometries * Very high performances * Challenging material procurement * On-demand manufacturing (exploration, repair) * Efficient use of material. Additive manufacturing: 3d CAD model, slicing, l...") |
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| Line 21: | Line 21: | ||
Not that simple | Not that simple | ||
* End-to-end process: several steps | * End-to-end process: several steps | ||
# Design | # Design: Design limitations (angles, overhangs, thin walls). Need for support structures | ||
# Material supply | # Material supply: Powder is not perfect. Contamination: effect all the way to the end product | ||
# Processing | # Processing | ||
# Post processing | # Post processing: Surface polishing, cleaning.Heat treatment to improve strength, remove defects | ||
# Testing/ qualification | # Testing/ qualification | ||
* Challenges at every step | * Challenges at every step | ||
What can it do for us | |||
* Lower mass: put material only where is is needed. | |||
* Fewer parts: less manufacturing steps | |||
* Very large parts | |||
* | |||
Revision as of 18:18, 19 January 2022
INtroduction
Catia Cardoso
Materials and processes for space. Challenges for space materials and procesesses.
- Low mass (when launched from Earth)
- Small production series
- Very high reliability
- Limited manufacturing processes (automation)
- Small to large geometries
- Very high performances
- Challenging material procurement
- On-demand manufacturing (exploration, repair)
- Efficient use of material.
Additive manufacturing: 3d CAD model, slicing, layer-wise assembly, complete part
- No tool
- Design freedom: any shape is possible(?)
- Many materials can be used
Not that simple
- End-to-end process: several steps
- Design: Design limitations (angles, overhangs, thin walls). Need for support structures
- Material supply: Powder is not perfect. Contamination: effect all the way to the end product
- Processing
- Post processing: Surface polishing, cleaning.Heat treatment to improve strength, remove defects
- Testing/ qualification
- Challenges at every step
What can it do for us
- Lower mass: put material only where is is needed.
- Fewer parts: less manufacturing steps
- Very large parts
