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With the arrival of the ceramic (or more precisely, zirconium-ceramic) Apple Watch, which replaced the not very successful gold, speculation also began about the possible appearance of the iPhone 8 in the same jacket. However, this is most likely not going to happen, and there are several reasons for this. Probably the most fundamental lies in the technology that Apple uses for the production of iPhones and other products.

On this topic aimed on your blog Atomic Delights product designer Greg Koenig, who was encouraged to do so by a professional discussion on Quora forum, which we are already talking about in connection with the Watch and potential ceramic iPhones they wrote. Koenig explains why the Jony Ive-led industrial design team won't just turn away from aluminum, which is superbly machined in a number of ways in Apple's workshops, and replace it with zirconium ceramic, the material that comes with the body of the second-generation Watch Edition.

The main reason is the production technique. Apple can now produce roughly one million iPhones per day with a manufacturing tolerance of 10 micrometers (one-hundredth of a millimeter). To achieve such results, it is necessary to have a perfectly synchronized orchestra of technology and manpower. It is estimated that around 20 CNC machines are needed to produce the daily amount, which can handle the demanding operations from initial machining to milling and final smoothing, with one aluminum body taking 3 to 4 minutes.

It is also interesting that Apple owns the largest number of CNC machines in the world - also due to the aforementioned production process, it has approximately 40 of them.

If Cook's company wanted to start producing iPhones from a different material (in this case, from ceramics), it would have to radically transform the entire strategy of such production, which has been constantly improved since the launch of the MacBook Air, which was the first to come with a chassis made of a single piece of aluminum . Koenig mentions three ways Apple could achieve such a change.

The first is, for example, the selection of a material that can be easily replaced with the original one without noticeable time and other production delays. Similarly, Apple did the same with aluminum, when it prepared a more durable version of the "6 Series" for the Watch and iPhone 7000S, the production of which is not that much more demanding.

Another option is to find a material that doesn't require as many machines. In the context of Apple, and given its well-known partnership, liquid metal from which the iPhone's chassis would be injection-molded is being considered. Of the current 20 CNC machines, Apple would quite possibly need only a fraction in the order of hundreds of pieces for liquid metal. On the other hand, such a material change represents a huge technical and technological challenge, which is within Apple's strength and resources, but the question is whether it is really that easy to do.

The third way is to replace the original CNC machines with new ones that can handle the new material. Considering the required number of machines, however, it is far from that simple, and manufacturers who supply Apple with such technology would apparently need at least three years for production, since on average they can produce a maximum of some 15 units per year. It is unrealistic to make it until September of next year, when the new iPhone is supposed to see the light of day. Let alone adjust them correctly afterwards. If Apple were to take these steps anyway, it would have been known a long time ago.

In addition, the question arises as to why Apple would actually want to change something that works so well for it. It is the absolute top in aluminum processing. Products like the Mac, iPhone, iPad and Watch are based on a single piece of this material that goes through precise manufacturing steps to its iconic perfection. Such perfection, on which, among other things, the company builds its name. Getting rid of aluminum in its best-selling device, the iPhone, wouldn't make much sense for Apple right now.

Either way, the Cupertino company has an interesting material in its hands - we're going back to ceramics - that can justify itself. It's safe to say that Jony Ive wouldn't have experimented with and subsequently marketed zirconia ceramics if he wasn't convinced it would work. Perhaps the world will see some more exclusive ceramic edition of the iPhone 8 in a similar style to the Jet Black version of the current flagships, or there will be models that will be supplemented with ceramics, but the overall material change for all new iPhones cannot be expected until next year. Is it even to be expected?

Source: Atomic Delights
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