After Ilya confirmed there was no problem with the size, the next step was to determine the
material and surface treatment, which were another big difficulty.
He only can confirmed that the material was aluminum,but didn't know much about the material
grade.For surface treatment,he only said it should be similar with apple computer surface.From
his description about the material and the surface requirements , based on our experience, our
engineer said Al6061 or Al6063 were suitable, because both aluminum 6061 and 6063 were most
commonly used aluminum materials for CNC machining parts and they could be made close to
the surface of apple computer.As a company specializing in this industry for more than 20
years,we fully know what type of sandblasting and what size of sandblasting can reach apple
computer surface.And we provided some pictures which can show this surface treatment for his
reference and choose.This is a very professional and fast way,Ilya praised our professionalism and
satisfied with our service.This is a very good beginning of our cooperation.In fact,many things are
very simple theory,practice down is not easy.
After 3 months of communication, confirmation, modification, we began to make
samples.Unfortunately,we had another problems in the process of making samples.Because the
box was too deep,the general tool couldn't made such a deep product and it needed a custom
tool. After another 15 days, the customs tool was finished and we used it to make the first 5pcs
rough embryos and then do sandblasting.Due to sandblasting type and size are not 100%
sure,we confirmed it after we did it 3 times in total before and after.
The next step is anodizing and it also didn’t go very well.We found the anodizing hanging point
is very big,with white space,water damage,scratches,all of them made the surface looked not
good-looking.We had no choice but to return the anodizing.We did anodizing again after talked
with the anodizing factory about the detailed requirements.The anodizing result was much better
this time and the surface problems were finally much less.2pcs samples of the 5pcs samples were
reluctantly selected and sent by fastest DHL to customer for confirmation.