Short answer

Consider material extrusion additive manufacturing with highly-filled polymers for designs requiring intricate geometries in metallic or ceramic materials, especially for low-to-medium volume production.

Field: Commercial Production
Source: Materials (2018)
Method: Literature Review
Evidence: Strong effect

Material extrusion additive manufacturing (MEAM) using highly-filled polymers offers a versatile and potentially cost-effective pathway for producing intricate metallic and ceramic components, bridging the gap between traditional manufacturing and advanced material fabrication. This commercial production research insight is drawn from a 2018 study published in Materials. Using Literature review, researchers explored how this design variable affects real-world outcomes. The key design takeaway: Consider material extrusion additive manufacturing with highly-filled polymers for designs requiring intricate geometries in metallic or ceramic materials, especially for low-to-medium volume production.

Study

Commercial ProductionHigh ImpactStrong effect

Material Extrusion AM enables cost-effective production of complex metal and ceramic parts

Materials · 2018

Key Findings

01MEAM with HP is an indirect process that utilizes sacrificial polymeric binders to shape metallic and ceramic components.
02The process involves filament extrusion, part building, binder removal, and a final sintering step to fuse powder particles.
03MEAM-HP offers a versatile method for fabricating complex geometries in metals and ceramics.

Application

Design takeaway

How to apply

When designing a component that requires a complex internal structure or unique external form in a ceramic or metal, investigate the feasibility of using MEAM with highly-filled polymers as a production method.

Project actions

01When researching manufacturing processes, consider indirect additive manufacturing methods for complex geometries.
02Investigate the trade-offs between traditional manufacturing and advanced additive techniques for specific material requirements.

Method & Evidence

AimWhat are the current capabilities and future potential of material extrusion additive manufacturing with highly-filled polymers for producing metallic and ceramic components?

MethodLiterature Review

ProcedureThe review systematically analyzed existing research and industrial practices related to material extrusion additive manufacturing (MEAM) of metallic and ceramic components using highly-filled polymer (HP) formulations. It covered aspects of MEAM techniques, HP binder and powder systems, compounding and filament fabrication, shaping, debinding, sintering processes, and compared the resulting parts with those from other manufacturing methods.

ContextAdditive Manufacturing, Materials Science, Industrial Production

Variables

IVMaterial composition (highly-filled polymer formulations), printing parameters, debinding parameters, sintering parameters.

DVComponent geometry, material properties (density, strength, microstructure), dimensional accuracy, production cost, production time.

CVType of metal/ceramic powder, type of polymer binder, ambient conditions during printing.

Strengths & Limitations

Strengths

+Provides a comprehensive overview of MEAM-HP for metallic and ceramic components.
+Discusses various stages of the process from material formulation to final part production.

Limitations

The process requires specialized equipment for compounding, printing, debinding, and sintering. Achieving consistent material properties can be challenging due to the multi-stage nature of the process.

Reliability & validity

The validity of the findings is based on a comprehensive review of existing literature and industrial practices. Reliability is enhanced by the systematic analysis of various aspects of the MEAM-HP process. However, as a review, it does not present new experimental data, and the practical applicability of findings may vary depending on specific material systems and equipment.

Think critically

How does the multi-stage nature of MEAM-HP (printing, debinding, sintering) impact overall production time, cost, and potential for defects compared to single-stage manufacturing processes?

Design Principles

"Leverage indirect additive manufacturing techniques to achieve complex material forms that are inaccessible through direct subtractive or formative methods."

This approach allows for the creation of complex geometries that are difficult or impossible to achieve with conventional methods, opening new possibilities for product design and functionality. The indirect nature of the process, involving binder removal and sintering, provides a scalable manufacturing solution for specialized components in various industries.

What This Means for Your Design

You can 3D print complex metal or ceramic parts by first printing them with a special plastic that burns away, and then heating the remaining material to fuse it together.

How to use in your project

1.Reference this paper when discussing the potential of additive manufacturing for producing complex components, particularly in materials like metals and ceramics, and when exploring indirect manufacturing pathways.

Add to My Project

Quick Cite

Paragraph starter

The research by González-Gutiérrez et al. (2018) highlights the potential of material extrusion additive manufacturing (MEAM) with highly-filled polymers as an indirect process for fabricating complex metallic and ceramic components. This method involves printing a sacrificial polymer binder, followed by binder removal and sintering, offering a versatile pathway to achieve intricate geometries that are often unattainable with conventional manufacturing techniques. This approach is particularly relevant for producing high-value, low-volume parts where traditional tooling costs are prohibitive, and it enables greater design freedom in material selection and form.

Source

Materials

Additive Manufacturing of Metallic and Ceramic Components by the Material Extrusion of Highly-Filled Polymers: A Review and Future Perspectives

journal · 2018

View source

Questions About This Research

What does the research say about material extrusion am enables cost-effective production of complex metal and ceramic parts?: Consider material extrusion additive manufacturing with highly-filled polymers for designs requiring intricate geometries in metallic or ceramic materials, especially for low-to-medium volume production. Evidence: Materials (2018).
Why does "Material Extrusion AM enables cost-effective production of complex metal and ceramic parts" matter for design?: This approach allows for the creation of complex geometries that are difficult or impossible to achieve with conventional methods, opening new possibilities for product design and functionality. The indirect nature of the process, involving binder removal and sintering, provides a scalable manufacturing solution for specialized components in various industries.
How can designers apply this research?: Consider material extrusion additive manufacturing with highly-filled polymers for designs requiring intricate geometries in metallic or ceramic materials, especially for low-to-medium volume production.
What were the main findings?: MEAM with HP is an indirect process that utilizes sacrificial polymeric binders to shape metallic and ceramic components.. The process involves filament extrusion, part building, binder removal, and a final sintering step to fuse powder particles.. MEAM-HP offers a versatile method for fabricating complex geometries in metals and ceramics.
What research method was used?: Literature Review.
How strong is the evidence?: Evidence strength is rated Strong effect, based on a 2018 journal from Materials.
What should I do differently in my next project?: When designing a component that requires a complex internal structure or unique external form in a ceramic or metal, investigate the feasibility of using MEAM with highly-filled polymers as a production method.
What are the limitations?: The indirect nature of the process introduces multiple steps (printing, debinding, sintering), each with potential for failure or quality degradation. Achieving optimal material properties requires careful control over binder composition, powder characteristics, and sintering parameters.