The Hinge Of The Apple IPhone Duo Uses 3D-printed Titanium Alloy

On September 10th Beijing time, Apple officially launched its first foldable phone, iPhone Duo, at its 2026 autumn launch event. The starting price is $1999. Besides the folding form itself, this product has left a more worthy attention point for the titanium industry: its hinge cover is made of 100% recycled 5-level titanium metal through 3D printing. This is the first time that Apple has introduced the 3D printing "large component" process in a mobile phone.

For the titanium industry, the significance of this event may be much greater than the phone itself.
1. Apple's "Ten-Year Wait": The Path from Case to Hinge
According to 3Dnatives, Apple stated that it has been experimenting with additive manufacturing for ten years and has been waiting for this technology to meet its quality and scale requirements.
Previously, Apple used the laser powder bed fusion (LPBF) process to 3D print the titanium metal cases of Apple Watch Ultra 3 and Series 11, and the USB-C interface of iPhone Air was also produced through 3D printing. Apple Watch Series 12 also used a recycled titanium 3D-printed case. From the case, interface to the foldable screen hinge, the position of Apple's use of additive manufacturing in products is moving from the periphery to the core.
The hinge of iPhone Duo is composed of over 100 precise components. Apple has self-developed a variable torque structure for it and added a magnetic-assisted closing function. Among them, the core rotating shaft component uses amorphous alloy (liquid metal), while 3D printing is used on the hinge cover - the material is 100% recycled 5-level titanium, with a matte sandblasting finish on the surface, creating a texture contrast with the rest of the body's mirror finish.
What is more notable is what happened after 3D printing. Apple's senior vice president of hardware technology, Johny Srouji, explained in the product introduction: The system will use confocal laser scanning to scan the topology structure of each device, and then print up to 25 layers of micro layers, developed by Apple, using optically polymerized materials to eliminate residual waves. In addition, the AI algorithm will match the most suitable shell for each hinge.
Apple is not the first company to use 3D-printed titanium alloy in the foldable screen hinge. In 2023, Honor used the LPBF process of titanium alloy hinges on Magic V2, becoming the first consumer electronics to use additive manufacturing for mass production. But Apple's entry means that the scaling turning point of this technology route has arrived.
2. What Does It Mean for Titanium Powder: From "Million Pieces Level" to "Ten Million Pieces Level"
The foldable screen hinge structure is complex and has extremely high precision requirements. The batch implementation of 3D-printed titanium parts marks the completion of the key leap from "million pieces level" to "ten million pieces level" in metal additive manufacturing in the consumer electronics sector.
This is followed by the certainty pull on the upstream titanium powder. The mass production of the hinge directly raises the expected purchase of 15-53 μm fine-grained titanium powder, and the requirements for batch stability, fluidity, oxygen content, etc. in consumer electronics are far higher than those in industrial applications. Whether one can obtain the dedicated grade certification and ensure the consistency of batch delivery is becoming a new threshold for titanium powder suppliers to enter Apple's supply chain.
In terms of price, the threshold for consumer electronics-grade titanium powder is rapidly decreasing. The price of 3D-printed titanium alloy powder for domestic use has dropped from 600 yuan/kg in 2023 to below 300 yuan/kg in 2024, and recycled TC4 titanium alloy powder is expected to further drop to 200 yuan/kg. Hassenwitt's 3D-printed titanium powder (15-53 μm) is priced at only 139 yuan/kg.
The cliff-like reduction in price thresholds is pushing titanium alloy 3D printing from "small-scale high-end" to the broad market of consumer electronics structural components and other "medium-scale batches".
III. The "invisible threshold" of upstream billets: Where does the quality of powder originate from?
When all attention is focused on titanium powder and 3D printing equipment, one aspect is often overlooked - powder-processed billets.
The quality of titanium powder is determined by the billets from the very beginning. The quality control of sponge titanium, the uniformity of the melting composition, and the consistency of the forging structure directly affect the purity, sphericity, and fluidity of subsequent powder production, and ultimately determine the density and mechanical properties of 3D printed parts. The purity of the powder is essentially a continuation of the purity of the billets.
The requirements of consumer electronics for 3D printed titanium parts are driving the upstream billet standards to be comprehensively upgraded. Batch stability, oxygen content control, and tissue uniformity - these indicators that were "adequate for the job" in industrial applications have become strict mandatory thresholds in the mass production scenarios of millions of pieces for consumer electronics.
In other words: There are many enterprises that can produce a good batch of billets, but only those that can ensure that every batch is the same are the true threshold.
The demand for titanium materials in consumer electronics is fundamentally different from that in traditional aerospace and chemical fields. Aerospace-grade titanium materials pursue ultimate performance, with small batches and long verification cycles; consumer electronics pursue consistency, delivery schedules, and cost control, with large batches and fast iterations. This means that titanium material enterprises entering the consumer electronics supply chain need not only technical capabilities but also the ability to manage quality on a large scale.
From Apple Watch cases to iPhone folding screen hinges, from aerospace to consumer electronics, titanium alloy 3D printing is completing a crucial "downward shift".
Apple spent ten years waiting for this technology to mature. For upstream titanium material enterprises, the window has opened - it's not a question of "whether to participate", but "are you ready?".
When millions of pieces of consumer electronics orders start pouring in, the consistency of powder-processed billets will determine who can stand on the starting line of this new race.