View source for Worcester Polytechnic Institute (20240208141). HOLLOW EXTRUSION NOZZLE simplified abstract

=HOLLOW EXTRUSION NOZZLE=


==Organization Name==

[[:Category:Worcester Polytechnic Institute|Worcester Polytechnic Institute]]


[[Category:Worcester Polytechnic Institute]]

==Inventor(s)==

[[:Category:ETHAN R. Wilke of Fort Collins CO (US)|ETHAN R. Wilke of Fort Collins CO (US)]][[Category:ETHAN R. Wilke of Fort Collins CO (US)]]

[[:Category:Loris Fichera of Boston MA (US)|Loris Fichera of Boston MA (US)]][[Category:Loris Fichera of Boston MA (US)]]

[[:Category:Nicholas E. Pacheco of Westport MA (US)|Nicholas E. Pacheco of Westport MA (US)]][[Category:Nicholas E. Pacheco of Westport MA (US)]]

==HOLLOW EXTRUSION NOZZLE - A simplified explanation of the abstract==


This abstract first appeared for US patent application 20240208141 titled 'HOLLOW EXTRUSION NOZZLE

The abstract describes a nozzle apparatus for a 3D printer that extrudes a circumferential, tubular form with a central void around a center post, allowing for the creation of hollow cylindrical segments or tube-shaped articles.

* Nozzle employs a center post to extrude a hollow tubular form around it.
* Radial arrangement of prongs or supports around the center post allows for molten print medium to flow in a 360° form.
* Can lay tube-shaped articles on a print bed or deposit high-resolution, hollow cylindrical segments for lightweight articles.
* Air or gas stream can be emitted into the center of the extrusion to maintain a tubular shape.
* Different shapes can be achieved by altering the contour of the center post and the bore.

Potential Applications:
- 3D printing of lightweight articles
- Creation of hollow cylindrical segments
- Manufacturing tube-shaped objects

Problems Solved:
- Efficient use of print medium due to hollow extruded shape
- Ability to create complex tubular forms

Benefits:
- Reduced material usage
- High-resolution printing capabilities
- Versatile in creating different shapes

Commercial Applications:
- Additive manufacturing industries
- Prototyping and product development companies
- Aerospace and automotive sectors

Questions about the technology:
1. How does the nozzle apparatus improve the efficiency of 3D printing processes?
2. What are the potential limitations of using a hollow extruded shape in 3D printing applications?


==Original Abstract Submitted==

a nozzle apparatus for a 3d printer employs a center post or shape and extrudes a circumferential, tubular form having a central void. the nozzle includes a radial arrangement of prongs or supports around a center post, which provides space for molten print medium to flow in a 360� form around the center post. the nozzle extrudes a hollow tubular form around the post that can lay a tube shaped article on a perpendicular print bed, or can be used to deposit high resolution, hollow cylindrical segments for forming lightweight articles with less volume of print medium required due to the hollow extruded shape. a stream of air or gas may be emitted into the center of the extrusion for maintaining a tubular shape. other suitable shapes may be employed by altering the contour of the center post and the bore.



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