On November 20, 2025, the latest technical analysis revealed that Apple has applied advanced 3D printing technology in the manufacturing of the USB-C interface for the iPhone Air. Researchers conducted detailed observations of the device using the DSX2000 microscope and discovered a unique circular chain-link texture on the surface of the interface, characterized by a regular and fine structure with distinct technical features.
Initially, there were speculations that this component might be formed using a binder jetting method, which involves spraying a binder to layer by layer bond metal powder into shape. However, after microscopic comparison, researchers concluded that the actual texture showed significant differences from the typical structures formed by binder jetting, thus ruling out this possibility.
Further analysis indicated that the interface is more likely produced using pulsed laser ablation technology. This process utilizes high-intensity, ultra-short pulse lasers to irradiate the target material, causing surface atoms or clusters to evaporate and redeposit, forming high-precision thin film or coating structures. This technology possesses extremely high spatial resolution and material control capabilities, making it suitable for the manufacturing of precision electronic components.
Apple has previously stated that it is introducing 3D printing titanium technology across multiple product lines, which not only enhances manufacturing precision but also significantly improves environmental benefits. The company plans to achieve carbon neutrality across its entire supply chain by 2030, and this technological upgrade is a crucial part of that strategy. Compared to traditional stamping processes, 3D printing is an additive manufacturing method that builds materials layer by layer as needed, greatly reducing raw material waste. It is estimated that this process conversion alone could save over 400 tons of primary titanium metal this year, effectively reducing the ecological burden caused by mining.
Notably, the Apple Watch Ultra 3 released this year and all titanium versions of the Apple Watch Series 11 have cases made from 100% aerospace-grade recycled titanium powder, manufactured through 3D printing. Because additive manufacturing can more precisely control material distribution, the final product closely resembles its final form, resulting in approximately 50% less raw material consumption compared to previous subtractive methods that relied on machining.
Apple emphasizes its commitment to achieving carbon neutrality for the entire lifecycle of all products and supply chains by 2030. Currently, all production power for Apple Watches comes from renewable energy sources such as wind and solar power, further promoting the implementation of green manufacturing.
(Reprinted from Zhongguancun Online)
