Apple's hardware design lead Molly Anderson revealed the company completely redesigned the manufacturing process for the new MacBook Neo, cutting aluminum use by 50 percent compared to traditional methods. Instead of machining rectangular blocks into shape, Apple now uses a material-efficient forming process that flattens and forms extrusions with heat and pressure, dramatically reducing waste.

The MacBook Neo also boasts record-breaking recycled content at 60 percent overall, including 90 percent recycled aluminum and 100 percent recycled cobalt in the battery. This environmental achievement comes alongside significant cost savings, as less material waste and reduced machining time mean lower production costs and power consumption. The new approach represents a fundamental shift from Apple's previous manufacturing methods.

Looking ahead, Apple is tackling the even more challenging task of 3D printing aluminum for future iPhone and Apple Watch chassis. While the company successfully implemented 3D printing for titanium in the Apple Watch Ultra 3, aluminum's high reflectivity and thermal conductivity make it notoriously difficult to work with. Success would mark a major achievement in consumer electronics manufacturing, potentially revolutionizing how small devices are produced while maintaining Apple's commitment to sustainability.