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DBZmusicboy01

macrumors 6502a
Original poster
Sep 30, 2011
965
489
Like they did with the Powerbooks ?
What was the reason? Not only it's lighter than A...It's also strong as steel
 

Radiating

macrumors 65816
Dec 29, 2011
1,018
7
Like they did with the Powerbooks ?
What was the reason? Not only it's lighter than A...It's also strong as steel

Titanium scratches very easily, more so than stainless steel or aluminum, which makes it a poor choice for a laptop material. Anodized aluminum is basically coated in thin layer of sapphire crystal (aluminum oxide), so it has incredible scratch resistance compared to any other material.
 
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christarp

macrumors 6502
Oct 29, 2013
459
509
Quite a few reasons:

Aluminium is cheap, titanium is expensive. Aluminium is easy to work with and can be extruded, cast, drawn, machined, etc. Titanium is hard to work with.

Aluminium is also a good conductor of heat whereas titanium is once again, not.

Titanium also isn't as strong as people make it out to be, "Titanium alloys have lower specific stiffnesses than in many other structural materials such as aluminium alloys and carbon fiber."

It's simply not worth it.
 
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snaky69

macrumors 603
Mar 14, 2008
5,904
484
Like they did with the Powerbooks ?
What was the reason? Not only it's lighter than A...It's also strong as steel

It is stronger than steel if we only look at tensile strength. It is a much softer metal and much easier to scratch than most steel and aluminum alloys.

Titanium is also harder to form/weld/machine. They are more than likely using a laser for the speaker grills and localized heating of titanium in presence of oxygen leads to brittleness which would make some of the features you see on your computer hard to fabricate.

Add to that the fact that Titanium is several times more expensive than aluminum and you've got your answer.
 
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venom600

macrumors 65816
Mar 23, 2003
1,077
812
Los Angeles, CA
Like they did with the Powerbooks ?
What was the reason? Not only it's lighter than A...It's also strong as steel

Spoken like someone who never owned a TiBook. They were gorgeous but fragile. Every surface was painted so you had to be super careful not to scratch the paint. The outer rim on the base of the computer was plastic and cracked frequently, as did the titanium display hinges.

However, it's been the most influential and unsung mobile design icon of the century, imho. Virtually every premium notebook today follows it's design principles, just like the previous generation of notebooks followed the Powerbook 100 design.
 
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dmccloud

macrumors 68000
Sep 7, 2009
1,817
668
Anchorage, AK
Using current pricing, aluminum sells for $1.83/kg, while titanium is $6.20/kg. That's three times the cost just for the raw materials, and since titanium is more expensive to process and refine, that 3x price differential becomes 10-15x differential for the finished product. Plus as others have said, it's not the best material for a laptop because of its lack of stiffness and rigidity as well as its inability to conduct heat.
 
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sb in ak

macrumors newbie
Apr 15, 2014
19
0
Homer, Alaska
Spoken like someone who never owned a TiBook. They were gorgeous but fragile. Every surface was painted so you had to be super careful not to scratch the paint. The outer rim on the base of the computer was plastic and cracked frequently, as did the titanium display hinges.

However, it's been the most influential and unsung mobile design icon of the century, imho. Virtually every premium notebook today follows it's design principles, just like the previous generation of notebooks followed the Powerbook 100 design.

Yep. I owned one of those babies for several years, and even rebuilt it when I spilled water into the keyboard, frying the logic board. But the paint peeled, the plastic cracked, and the hinges really sucked too. The Unibody aluminum design is heaps better but it did all start with the TiBook.
 
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