During the 2026 Formnext exhibition in Shenzhen, metal additive manufacturing once again emerged as a central focus for the industry chain. As laser powder bed fusion (LPBF), electron beam additive manufacturing, and other metal 3D printing technologies continue to advance, the sector is gradually transitioning from its early phases of “technology validation” and “small‑batch production” toward… High-performance materials, complex structures, lightweight design, and large-scale applications Step forward.

Judging from the materials, equipment, processes, and application trends showcased at this year’s exhibition, one increasingly clear direction is: The competitive focus in metal additive manufacturing is shifting from “can we print?” to “can we leverage additive manufacturing to truly achieve weight reduction, integration, and performance enhancement?” In particular, in sectors such as aerospace, embodied robotics, and consumer electronics, the demand for lightweight, highly structurally efficient, and complex integrated components continues to grow.

For magnesium alloys, this trend is particularly noteworthy. As one of the lowest‑density structural metals currently used in engineering applications, magnesium alloys, when combined with additive manufacturing technologies, hold the potential to unlock further advancements. Lightweight design, complex structures, and functional integration Potential in this area.

I. From “3D Printing” to “Lightweight Manufacturing”

In the past, metal additive manufacturing was often described as an advanced manufacturing technology capable of producing complex geometries.

However, as technology matures, the industry’s focus is shifting.

Today’s central question is no longer simply: Can we print it?

Rather: Can additive manufacturing make parts lighter, stronger, more integrated, and more efficient?

This means that additive manufacturing is gradually evolving from a mere manufacturing process into… An essential tool for product design and materials innovation Through topology optimization, lattice structures, biomimetic designs, and integrated design approaches, engineers can rethink the structural form of components.

Conventional machining is typically constrained by the following factors:

• Tool accessibility
• Mold structure
• Material removal rate
• Multi-part assembly

Moreover, metal additive manufacturing can, to a certain extent, overcome these limitations, enabling complex internal channels, lattice structures, and monolithic components. Therefore: Lightweight design + high-performance materials + LPBF An important technological portfolio for the metal additive manufacturing industry is taking shape.

II. Aerospace: Lightweighting is emerging as a key value proposition of additive manufacturing.

Aerospace is one of the earliest fields to realize high-value applications of metal additive manufacturing.

For aircraft, satellites, unmanned systems, and future low‑altitude flying vehicles, reducing structural weight typically means:

Lower energy consumption, higher payload capacity, longer endurance, and greater system efficiency.

Therefore, the aerospace sector not only focuses on the intrinsic strength of materials but is also increasingly concerned with:

• Specific performance per unit weight
• Structural efficiency
• Part integration level
• Internal complex structure
• Thermal management capability
• Manufacturing cycle

This is also a key reason why additive manufacturing of magnesium alloys deserves close attention. With its low density, magnesium alloy—when further integrated with topology optimization and lattice‑structure design through additive manufacturing—enables the exploration of even more efficient lightweight structures.

For aerospace components, what deserves attention in the future is not merely “the use of magnesium alloys,” but rather: How much structural weight reduction can ultimately be achieved through additive manufacturing of magnesium alloys? This could become one of the key metrics for assessing the value of additive manufacturing of magnesium alloys.

III. Embodied Robotics: Lightweight Design Is Evolving from an “Advantage” to a “Requirement”

With the rapid advancement of humanoid robots, industrial robots, and other embodied intelligent devices, robotic structural components are encountering new design requirements.

Robots require frequent motion, and their joints, robotic arms, end effectors, and structural support components all need to: Weight, stiffness, strength, inertia, and manufacturing complexity Achieving a balance between them. For robots, structural weight is not an isolated metric. Lighter structural components mean: Lower weight → Lower inertia → Reduced actuator load → Potentially higher efficiency. Accordingly, the robotics industry’s demand for lightweight metal structural components is on the rise.

Additive manufacturing can further reduce part weight through complex geometries, topology optimization, and integrated manufacturing. This enables: Lightweight magnesium alloy + metal additive manufacturing It holds promise as one of the promising directions for future structural materials in robotics.

In particular, in the following robotic applications, the importance of material density and structural efficiency is becoming increasingly pronounced:

• Robotic arm structure
• Periarticular structural components
• End effector
• Lightweight housing
• Internal support structure

IV. Consumer Electronics: Thinner, Lighter, and More Complex

Consumer electronics is another key market driving innovation in lightweight materials.

Smartphones, AR/VR devices, wearable gadgets, and next-generation smart terminals are continuously evolving toward: Thinner, lighter, and more highly integrated Development. Meanwhile, the internal space available in consumer electronics is becoming increasingly limited.

Traditional manufacturing methods face certain limitations when it comes to complex internal structures, locally reinforced features, and highly integrated designs.

Metal additive manufacturing enables the realization of complex geometries:

• Component Integration
• Localized reinforcement
• Space Optimization
• Lightweighting
• Function Integration

Moreover, the low-density nature of magnesium alloys further enhances their potential for weight reduction at the material level.

In the future, competition in metal additive manufacturing for consumer electronics may hinge not merely on “whether one can print metal casings,” but more importantly on: Can material and structural design be jointly leveraged to reduce product weight while maintaining adequate structural performance and manufacturing reliability?

V. Why are magnesium alloys worth paying attention to?

Among lightweight metallic materials, one of the most distinctive features of magnesium alloys is Low density This makes it naturally well-suited for applications that are highly sensitive to weight.

However, traditional magnesium alloy manufacturing simultaneously faces the following challenges:

• Complex structures are difficult to machine.
• Material utilization rate
• Manufacturing Constraints for Complex Internal Structures
• Cost of small-batch complex parts
• Processing of Special Materials and Safety Requirements

And additive manufacturing offers another approach: Material lightweighting + structural lightweighting + manufacturing innovation

The integration of these three approaches enables a deeper exploration of the application potential of magnesium alloys in complex, lightweight components. Therefore, additive manufacturing of magnesium alloys is not merely a matter of substituting conventional magnesium alloys with 3D printing. The true technological value lies in: Redesign the part instead of simply replicating a conventional component.

VI. Tangshan Weihao: From Magnesium Alloy Powder to Additive Manufacturing Solutions

In the field of additive manufacturing of magnesium alloys, powder materials constitute a critical foundation of the entire technological chain.

Tangshan Weihao Magnesium Powder Co., Ltd. has long been dedicated to… High-purity magnesium and magnesium alloy spherical powders R&D and production, while continuously advancing the integration of magnesium alloy materials with metal additive manufacturing technologies. Centered on magnesium alloy additive manufacturing, Weihao focuses on:

01｜High-Quality Spherical Magnesium Alloy Powder

Spherical magnesium alloy powders suitable for metal additive manufacturing were obtained via atomization powder‑making technology, with particular emphasis on controlling:

• Particle size distribution
• Sphericity
• Liquidity
• Loose-packed/ tapped density
• Oxygen content
• Hollow noodles
• Powder Batch Stability

Provides a stable material foundation for metal additive manufacturing processes such as LPBF.

02｜Magnesium Alloy Material Systems for LPBF

For the application of magnesium alloys in LPBF, Weihao continues to develop and optimize, including: AZ91D, ZK61, AZ31, WE43, VW63K, GZ151K, as well as magnesium and magnesium alloy powder systems such as Mg–Gd, Mg–Y, and Mg–Nd. Different material systems can be developed to meet varying requirements for strength, heat resistance, biocompatibility, and lightweight design.

03 | Powder–Equipment–Process Synergy

Additive manufacturing of magnesium alloys is not merely a powder‑related issue. A truly stable printing process requires: Powder + Machinery + Process + Environment Collaborative matching. Therefore, Weihao is transitioning from a single‑source powder supply to… One-stop additive manufacturing solution for magnesium alloys Expansion. Through the collaborative development of materials, equipment, and printing processes, we provide customers with solutions ranging from: Material selection → Powder supply → Process development → Print validation → Application development Technical support.

VII. The Future as Seen at Formnext in Shenzhen

One important insight from this year’s Formnext in Shenzhen is:

Metal additive manufacturing is gradually evolving from a “manufacturing technology” to a “product innovation technology.”

In the future, truly competitive additive manufacturing applications may not simply involve replacing traditional parts with 3D‑printed ones. Instead, they will require re‑addressing three fundamental questions:

1. Can we make it lighter?

Can it be lighter?

2. Can we make it more integrated?

Can more functions be integrated into a single component?

3. Can we make it more efficient?

Can we jointly enhance system efficiency through materials, structure, and manufacturing processes?

These three issues happen to align closely with the future development needs of aerospace, embodied robotics, and consumer electronics.

VIII. The Next Stage of Additive Manufacturing for Magnesium Alloys

As metal additive manufacturing equipment, materials, and processes continue to mature, the future development priorities for magnesium alloy additive manufacturing will gradually shift from: “Can print” Direction: “Stable Printing” Then walk toward “Large-scale application” Ultimately, what determines whether a technology can truly be adopted in industrial applications goes beyond the printing equipment itself; it also includes: High-quality powder + Stable manufacturing process + Safe production + Data validation + Application scenarios The complete system.

Tangshan Weihao will continue to focus its R&D efforts on magnesium and magnesium alloy powders, LPBF additive manufacturing, and lightweight applications, exploring additional possibilities for magnesium‑based additive manufacturing in aerospace, embodied robotics, consumer electronics, low‑altitude aerial vehicles, the automotive industry, and other high‑end manufacturing sectors.

Conclusion

Lightweighting is no longer just a matter of material selection; it is increasingly becoming a system‑level product design strategy. From aerospace to embodied robotics and consumer electronics, more and more products are simultaneously striving for: Lighter weight | Higher performance | Greater integration | Smarter manufacturing. Meanwhile, the integration of magnesium alloys with metal additive manufacturing offers new materials and manufacturing pathways to advance this trend.

Tangshan Weihao will continue to advance the integration of magnesium alloy powder materials with additive manufacturing technologies, providing the material foundation and technical support for next-generation lightweight manufacturing.