Time to read: 2 min
3D打印技术有4种主要类型：FDM，SLS，SLA和PolyJet。在这篇文章中，我将概述每个3D打印技术的优势和缺点，帮助您选择最适合您的原型需求。
Picking the Right Technology
类似于挑选合适的材料，了解您的技术选项可以帮助加快开发，节省成本，最重要的是，生产更高质量的硬件产品。下面是一个图表比较重要指标在决定用于原型的3D打印技术时：
FDM. |
SLS |
SLA |
Polyjet |
|
Materials |
pl, ABS, Thermoplastics |
Nylon |
Visiclear/VisiJet |
Vero，Veroclear，橡胶 |
Process |
塑料/金属长丝从喷嘴挤出以构建3D对象 |
High power laser fuses particles of plastic/metal/ceramic/glass powder |
Ultraviolet laser cures liquid resin layer by layer |
Photopolymer deposited onto bed, UV light cures resin after each layer |
表面纹理 |
低分辨率，可见层线 |
略微粗糙的表面感觉 |
Smooth, often shiny |
Smooth, high resolution, matte finish |
功能 |
Strong and durable |
Strong and parts with some flex |
Strong and brittle |
Capable of both rigid and flexible parts |
关于机械故障 |
直到突然的骨折直到没有变形 |
Gradual deformation until fracture |
直到突然的骨折直到没有变形 |
Slight deformation until fracture |
Post-process |
Hand remove support material |
抛光 |
Heated to melt support material |
Hand cleaned by water-jet |
成本 |
$ |
$$ |
$$$ |
$$ |
何时使用FDM
- Rapid prototyping
- Low-cost models
- Strong and durable parts
- When precision and surface finish are not crucial
何时使用SLS
- 坚固且功能的部件
- When surface finish is not crucial
- 设计将使用大量的支持材料来应对复杂性
When to Use SLA
- Translucent pieces
- 用于制造用于铸造以促进大规模生产的模具
- 当复杂的细节和/或非常光滑的表面光洁度至关重要
- When strength and durability of the model is not crucial
When to Use Polyjet
- 丙烯酸塑料，弹性体和透明选择
- Smooth surface finish and fine details
- 最终产品的外观和感觉，非常适合视觉模型
- Multi-material printing
查看个人页面Polyjet,SLA,SLS， 和FDM.to learn more about their specific properties, and as always if you have any further questions feel free toreach out to the Fictiv support team!
