Work

A bi-material FDM system with reinforced mixing and cooling for uniform material mixing and broad functionality

Year: 2024

Type: article

Abstract: This work presents a single-nozzle/bi-extrusion FDM technology featuring two material inputs and heating sections connected with a mixing device with a reinforced mixing mechanism. The device ensures uniform mixing of materials, consistent print quality, and functionality, while an air-cooling system allows printing with materials having different solidification temperatures. Trials with six Dryflex TPEs demonstrated precise regulation of material flows, enabling dynamic adjustment of material blends and creation of multiple functionalities in one product. The technology also creates functionally graded materials (FGMs) in transition zones, improving interlayer adhesion and mechanical performance. This advancement enhances production flexibility, efficiency, and product quality, and expands material availability for additive manufacturing.

Source: Progress in Additive Manufacturing

DOI: 10.1007/s40964-024-00926-0

Authors: Li Yang, Henrik Petterson, Jonathan Olofsson, Philip Palmaer

Institution: RISE Research Institutes of Sweden

Language: English

Topic: Additive Manufacturing and 3D Printing Technologies

Subfield: Automotive Engineering

Field: Engineering

Domain: Physical Sciences

SDG: Industry, innovation and infrastructure

Open Access status: hybrid

Estimated APC paid: $3,390