The iPhone 6s turned out that the body material was changed and the strength was greatly improved
Presented on Wednesday, September 9, 2015, Apple's new "iPhone 6s" and "iPhone 6s Plus" which are anticipated to be on sale on September 18 (Friday) have changed the aluminum material used for the body to a higher strength TheLow bending strength problematicIt turned out that it was a state of improvement.
IPhone 6S She said to pass 'bendgate' test with 2x amount of pressure [Video] | 9to 5Mac
On iPhone 6 and iPhone 6 Plus announced in September 2014A case where the body has bent in a pocketAs a result, the so-called "bendgate" disturbance caught itself,Galaxy S6 Edge turned out to be more flexible than iPhone 6 PlusOr against itSamsung officially refutedFor example, the upheavals related to the strength of large screen smartphones have been overlooked.
In the following movie, it shows how to get a part that seems to be the body of iPhone 6s, which should have already started production at the factory, and conducted a comparison experiment with iPhone 6.
IPhone 6S Aluminum Bend Test - YouTube
Two iPhone casing parts placed on the table. It is a bit hard to see, but the body looking dark on the left is the aluminum body of the iPhone 6 released in 2014, the one on the right is seen as the iPhone 6s.
Looking at the aluminum body of the iPhone 6s, you can see that there is almost no apparent difference from iPhone 6.
And a black device on the right is a device that applies force across the iPhone. By placing the iPhone in between the three white parts and applying force from above it will be "meat".
Prior to the experiment,X-ray fluorescenceThe material was analyzed in detail by "X-ray fluorescence analyzer" which can analyze the elements contained in the material by irradiating.
First of all I analyzed the 2014 iPhone 6. Then it turned out that 98.94% of the metal contained in the material is aluminum (Al). From this result, the material used for iPhone 6 is so-called "aluminum alloy"6000 seriesIt turns out that it is a type called called. Aluminum in the 6000 series is the most widely used aluminum alloy because it is easy to obtain and process, and it is basically the same material as aluminum sash for ordinary households.
When analyzing one iPhone 6s, it turned out that after 91.174% aluminum, 7.642% of zinc (Zn) is contained. From this result, in the movie the material used in iPhone 6s is the highest strength among aluminum alloys "7000 series"It is speculated that it is aluminum. Aluminum in the 7000 series is a material used also for aircraft and train cars, and it has a higher strengthduraluminThere seems to be possibility that it is a kind of.
However, it is known as a weak point that aluminum alloys in the 7000 series are vulnerable to corrosion. For that reason, it is pointed out that the coating coating the surface is made thicker than before. It seems that the response when scraping the coating with paper file was different. In addition, if you look closely at the picture below, the internal structure machined out by the NC machine seems to be slightly different, so it seems that the wall thickness and others are adjusted partially.
We have been waiting for bending tests. First, set the aluminum body of the iPhone 6 and apply force from above. In addition, it is only the aluminum body to be tested, but display and board etc are not included.
When the power meter showed 30 pounds (about 13 kg), the body began to bend greatly. Pattern that the force concentrates most in the opening of the button.
Power is34 lbWhen it reaches (about 15 kg), it is perfectly refreshing.
You can see that there is a large bend at the part with the button.
One iPhone 6s also started testing. The 30 pounds that the iPhone 6 bent out clear in a victory.
I created a movieUnbox TherapyIt seems that the man of "Mr. Wahaha!" Is showing the intensity of laughter.
The force reached 60 pounds (about 26 kg) which is twice the iPhone 6. But at this stage I am not bothered.
With more and more force,80 lbWhen it reached (36 kg), it finally heard a sound indicating bending. However, it turned out that it can withstand 2 times more force than before.
The difference in how to bend is also interesting. Compared to the right side of the aluminum body, the iPhone 6 on the right has a big hill around the SIM card slot in the center, and the power button part on it is also affected. On the other hand, even with the iPhone 6s on the left it is inevitable that the SIM card slot is bent, there is no noticeable impact on the power button part. In addition, iPhone 6s is gentler in overall curvature.
Even if you look at the left side, there are differences in the deformation condition of the volume button part, but it seems difficult to make a definite judgment as this is due to the difference in the force added after deformation.
In addition to changing the material, the iPhone 6s seems to be reviewing the internal design and reinforcing it. The same rude as the "Bendgate riot" in 2014 was the experimental result that I could see a glimpse of Apple's measures to step on.
Compared to the 6000 series, the aluminum of 7000 series has high tenacity even when it is high, and it is said that there is a tendency that it breaks "popping" when a certain force is applied. Although it is unlikely that such great force will be added by usual usage, it is a matter of what kind of influence will appear at the time of actual use.