| 释义 |
Advantages vs. disadvantages Advantages Disadvantages - See also
- References
{{AFC submission|d|nn|u=ProfessorCui|ns=118|decliner=Jovanmilic97|declinets=20181206182835|ts=20181206175431}} {{AFC submission|d|nn|u=Drawnnow|ns=118|decliner=Frayae|declinets=20181114111140|small=yes|ts=20180916213102}} {{AFC comment|1=One reference certainly is not enough here. Add more in, please. Jovanmilic97 (talk) 18:28, 6 December 2018 (UTC)}}
Microheater array powder sintering (MAPS) is an additive manufacturing (AM) technique that uses an array of microheater as the power source to selectively sinter powdered material to create 2D or 3D structures. It is similar to Selective laser sintering (SLS) but differs in energy sources. Compared to laser, an microheater can deliver a heat pattern onto the powder particles in a large area simultaneously by selectively turning on and off individual microheaters in a timescale of milliseconds, which can help improve the printing speed compared to SLS. This technology is selected as one of the top 5 manufacturing technologies for the 2018 IET Innovation Awards[1]. Advantages vs. disadvantages Advantages - Scalability: A distinct advantage of the MAPS process over SLS process is that the microheater array can be scaled to thousands of heating elements with little additional cost whereas laser is mostly used for pointwise scanning.
- Cost: The microheater array is made with MEMS process and can be made much cheaper than a laser. Like a thermal inkjet printhead, the microheater array printhead can be made disposable due to its low cost.
- Power: An individual microheater only consumes ~100s mW to ~1 W of power during operation while a laser would consume ~10s W or ~100s W power for similar applications.
- Process Control: A microheater is also a temperature sensor and therefore can provide precise temperature control while a laser cannot.
Disadvantages - MAPS requires the microheater array to be put close to the powder particles over a small air gap for efficient delivery of heat, although constraints of the air gap can be mitigated by using a gaseous medium with higher thermal conductivity (e.g., Helium, or Plasma), or by increasing the operating temperature of the microheater.
See also - 3D printing
- Desktop manufacturing
- Digital fabricator
- Direct digital manufacturing
- Fab lab
- Fused deposition modeling (FDM)
- Instant manufacturing, also known as direct manufacturing or on-demand manufacturing
- Rapid manufacturing
- Rapid prototyping
- RepRap Project
- Solid freeform fabrication
- Stereolithography (SLA)
- Von Neumann universal constructor
References 1. ^http://www.ietinnovationawards.org/manufacturing.html
|