Evidence map›Paper›PMID 34092883›Full record

ReviewThe International journal, advanced manufacturing technology2021

Screw-assisted 3D printing with granulated materials: a systematic review.

Joaquim Manoel Justino Netto, Henrique Takashi Idogava, Luiz Eduardo Frezzatto Santos, Zilda de Castro Silveira, Pedro Romio, Jorge Lino Alves

Abstract readReview
In one paragraph

Review in The International journal, advanced manufacturing technology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

21 citing papers in PubMed.

  1. Article
  2. Pellet Printing for Soft Robotic Devices.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2026
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

6 authors.

Joaquim Manoel Justino NettoDepartment of Mechanical Engineering, São Carlos School of Engineering, University of São Paulo, Sao Paolo, Brazil.ORCID 0000-0003-0251-4729
Henrique Takashi IdogavaDepartment of Mechanical Engineering, São Carlos School of Engineering, University of São Paulo, Sao Paolo, Brazil.
Luiz Eduardo Frezzatto SantosDepartment of Mechanical Engineering, São Carlos School of Engineering, University of São Paulo, Sao Paolo, Brazil.
Zilda de Castro SilveiraDepartment of Mechanical Engineering, São Carlos School of Engineering, University of São Paulo, Sao Paolo, Brazil.
Pedro RomioDepartment of Mechanical Engineering, Faculty of Engineering of University of Porto, INEGI, Porto, Portugal.
Jorge Lino AlvesDepartment of Mechanical Engineering, Faculty of Engineering of University of Porto, INEGI, Porto, Portugal.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

This paper presents a systematic review on extrusion additive manufacturing (EAM), with focus on the technological development of screw-assisted systems that can be fed directly with granulated materials. Screw-assisted EAM has gained importance as an enabling technology to expand the range of 3D printing materials, reduce costs associated with feedstock fabrication, and increase the material deposition rate compared to traditional fused filament fabrication (FFF). Many experimental printheads and commercial systems that use some screw-processing mechanism can be found in the literature, but the design diversity and lack of standard terminology make it difficult to determine the most suitable solutions for a given material or application field. Besides, the few previous reviews have offered only a glimpse into the topic, without an in-depth analysis about the design of the extruders and associated capabilities. A systematic procedure was devised to identify the screw-assisted EAM systems that can print directly from granulated materials, resulting in 61 articles describing different pieces of equipment that were categorized as experimental printheads and commercial systems, for small- and large-scale applications. After describing their main characteristics, the most significant extruder modifications were discussed with reference to the materials processed and performance requirements. In the end, a general workflow for the development of 3D printers based on screw extrusion was proposed. This review intends to provide information about the state-of-the-art screw-assisted EAM and help the academy to identify further research opportunities in the field.

Indexed as

Additive manufacturingFused particle depositionFused pellet modelingMaterial extrusionPowder melt extrusion

Identifiers

PMID34092883
PMCPMC8169388

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.