Where Are We in the Gartner Hype Cycle for Sinter-Based Additive Manufacturing

Where Are We in the Gartner Hype Cycle for Sinter-Based Additive Manufacturing?

By Stefan Joens, President, Elnik Systems & DSH Technologies

Introduction

Every transformative manufacturing technology follows a predictable path from early excitement to widespread industrial adoption. Few models illustrate this journey better than the Gartner Hype Cycle, which has become a valuable framework for understanding how emerging technologies mature over time.

Over the past decade, I have watched sinter-based additive manufacturing evolve from a promising concept into an increasingly practical production technology. As both an equipment manufacturer at Elnik Systems and a provider of commercial debinding and sintering services through DSH Technologies, we have had a unique vantage point across virtually every stage of this evolution.

Today, I believe the industry has entered one of its most important phases, not the initial excitement that captures headlines, but the Slope of Enlightenment, where real manufacturing value begins to replace speculation.

Understanding the Gartner Hype Cycle

The Gartner Hype Cycle describes five stages that nearly every emerging technology experiences:

1. Technology Trigger

2. Peak of Inflated Expectations

3. Trough of Disillusionment

4. Slope of Enlightenment

5. Plateau of Productivity

Looking at sinter-based additive manufacturing through this lens helps explain not only where the industry has been, but where it is headed next.

Technology Trigger: A New Manufacturing Opportunity

The technology trigger for sinter-based additive manufacturing began in the late 2000s and accelerated throughout the 2010s as multiple printing technologies emerged that relied on powder metallurgy rather than laser melting.

Unlike laser powder bed fusion, these technologies leveraged a manufacturing principle that had already been proven for decades through metal injection molding (MIM): shape a "green" part, remove the binder, and densify the component through sintering.

This familiar metallurgical foundation made the technology particularly attractive because manufacturers could leverage existing knowledge of powder behavior, alloy development, and furnace processing.

Several technologies quickly emerged as promising solutions.

Binder Jetting became the most widely adopted sinter-based process. With processing principles derived from metal injection molding, binder jetting demonstrated strong potential for industrial production of stainless steels, Inconel, titanium, and numerous specialty alloys. It has proven especially effective for components ranging roughly from golf-ball to baseball size, where dimensional predictability and production scalability provide clear advantages.

Lithography based metal manufacturing (LMM) printing technologies, like Incus, have proven quality in small, detailed part making using technology created by a company called Lithoz and applying it to metal part making.  Highly detailed, fine small parts became achievable using this technology. 

MoldJet technology introduced another compelling approach by printing sacrificial wax molds that are subsequently filled with metal powder slurry. Think of it as “Casting” in layers. This process minimizes or eliminates support structures while creating opportunities for producing dense, difficult-to-machine alloys such as Inconel. Alot of the powder management steps throughout Binder Jetting were eliminated with this process.

Additive screen printing has also emerged as an exciting technology for high-volume production of more straight wall, thinner and more detailed parts. The process is particularly attractive for filtration media, semiconductor components, fluidic devices, ceramics, and other high-temperature applications where precision and miniaturization are becoming increasingly important.  Recent adoption in the electronics industry has helped this part making technology see early successes.

Cold Metal Fusion rounds out our sinter based additive manufacturing technologies.  With a slower start and adoption, this technology of using SLS style low power laser printers from the plastics industry to fuse the polymer of a blended feedstock made by Headmade Materials is also a unique solution to powder management issues posed by Binder Jet.  Especially when working alloys like Titanium which pose potential hazards in their raw form.  

Alongside equipment innovation came rapid advancements in materials. Stainless steels remain the workhorse alloy, but successful processing of MAR247, tungsten carbide, titanium, and other advanced materials continues expanding the range of viable applications.

Even during these early years, the potential applications were evident:

• New product development

• Part consolidation and assembly reduction

• On-demand manufacturing without tooling

• Spare parts production

• Cost reduction through manufacturing simplification

The possibilities appeared nearly limitless.

Peak of Inflated Expectations

As with many disruptive technologies, enthusiasm eventually outpaced reality.

Throughout the mid-to-late 2010s and into the early 2020’s, investment capital flowed rapidly into additive manufacturing companies. New machine platforms were introduced at an extraordinary pace, ambitious production forecasts became commonplace, and expectations often exceeded what industrial manufacturing could realistically deliver.

Many organizations viewed additive manufacturing as an immediate replacement for conventional production rather than another manufacturing tool with specific strengths and limitations.

The excitement generated important innovation, but it also created unrealistic timelines for adoption.

Manufacturers soon discovered that printing a component was only one part of the process. Achieving dimensional consistency, material properties, repeatability, and production economics required expertise in debinding, sintering, metallurgy, and process optimization.

The furnace, not simply the printer, became one of the defining factors for production success (or failure). 

The Trough of Disillusionment

Like many technologies before it, additive manufacturing eventually encountered a period of recalibration.

Around 2021, economic uncertainty, changing investment priorities, and more realistic production expectations forced many companies to reassess their strategies. 

Some startups struggled to scale.

Others shifted away from aggressive equipment expansion and toward solving practical manufacturing challenges.

Rather than chasing technology for technology's sake, manufacturers began asking better questions:

• Which applications genuinely benefit from additive manufacturing?

• Which materials offer sustainable production advantages?

• Where can additive outperform conventional manufacturing?

• How can production risks be minimized?

Perhaps the industry's biggest realization was that success depended on much more than owning a printer.

Companies increasingly recognized the value of outsourcing highly specialized portions of production, including debinding, sintering, metallurgical consulting, process development, troubleshooting, and operator training.

This allowed manufacturers to remain focused on their core competencies while leveraging experienced partners for the complex thermal processing required to achieve consistent production quality.

In many ways, this shift represented maturity rather than failure.

The Slope of Enlightenment

Today, I believe sinter-based additive manufacturing has firmly entered the Slope of Enlightenment.

The conversation has changed dramatically.

Instead of asking whether additive manufacturing will replace traditional manufacturing, companies are identifying where it creates measurable value and equipment makers are looking to be value-add application and solutions providers not just equipment sellers.

The industry's success stories are increasingly driven by applications rather than equipment specifications. 

Companies such as FreeForm Technologies continue demonstrating how binder jetting can successfully transition into repeatable industrial production. Organizations like Azoth 3D have shown how strategic partnerships, process expertise, and application engineering create sustainable business growth rather than short-term excitement.

Large manufacturers including Indo-MIM and GKN continue expanding production capabilities while validating the commercial viability of sinter-based manufacturing across multiple industries.

Equally important, materials continue advancing. Stainless steel remains the industry standard, but titanium, copper, high-temperature superalloys, tungsten carbide, and numerous specialty materials are steadily becoming more accessible and production-ready.

Perhaps most encouraging is the industry's mindset.

Customers are asking smarter questions.

Investment decisions are based on return rather than novelty.

Application engineering has become more important than machine specifications.

Partnerships between equipment suppliers, service providers, metallurgists, and manufacturers are replacing isolated technology purchases.

This collaborative ecosystem is exactly what long-term industrial adoption requires.

Looking Ahead: The Plateau of Productivity

The final stage of the Gartner Hype Cycle is the Plateau of Productivity, where technology becomes an accepted and dependable manufacturing solution.

While we are not fully there yet, the direction is becoming increasingly clear.

Emerging opportunities continue to grow in titanium, copper, refractory metals, and advanced ceramics.

Industries such as semiconductors are demanding smaller and more intricate components that traditional manufacturing often struggles to produce economically. Data centers require increasingly sophisticated thermal management solutions. Heat exchangers, fluidic devices, filtration media, and medical technologies continue pushing the boundaries of geometric complexity.

These applications align exceptionally well with the strengths of sinter-based additive manufacturing.

Just as importantly, the supporting ecosystem continues maturing. Better furnace technologies, improved process controls, advanced simulation software, more predictable material systems, and experienced outsourcing partners are making production implementation significantly less risky than it was only a few years ago.

Experience Over Excitement

After decades working in debinding and sintering, one lesson has remained remarkably consistent: manufacturing success is rarely driven by hype.

It is built through process knowledge, disciplined engineering, realistic expectations, and strong partnerships.

The Gartner Hype Cycle reminds us that every transformative technology experiences periods of excitement and disappointment before finding its true industrial role.

Sinter-based additive manufacturing has successfully navigated those earlier stages.

Today, the industry is no longer chasing possibilities, it is delivering measurable production results.

That is why I believe we are firmly on the Slope of Enlightenment, where practical applications, material advancements, and collaborative manufacturing expertise are creating the foundation for long-term adoption.

The next chapter will not be defined by headlines.

It will be defined by production.