According to the source from the upstream supply chain, Acer is designing and developing laptops internally, which poses a threat to the notebook makers who have always wanted to participate in research and development, and may also affect the profitability of laptop and notebook factories. Sources pointed out that Acer's internally developed laptops, using Windows 8 and touch capabilities, will be displayed at the Consumer Electronics Show (CES) in 2013. The related R&D work has been completed and Acer is currently seeking partners for assembly.
In addition, Lenovo also plans to expand its internal production and establish its own factory. If Acer also decides to conduct internal research and development and production, it may seriously affect the interests and profits of the notebook makers.
However, some laptop manufacturers stated that they are not worried about the brand manufacturers' R&D and production movements because brand brands have long outsourced R&D and manufacturing operations to notebook makers, and it will take a long time to restart their R&D and production capabilities. Learning. At the same time, Wintel no longer dominates the PC market. Brand manufacturers will also need to spend a lot of manpower and material resources to learn the R&D and production of ARM and Android products, which will further increase the economic burden on brand manufacturers.
Die casting is the pressure of metal molds on a die casting machine and is the most productive casting process. Die-casting machines are divided into two categories: hot-chamber die-casting machines and cold-chamber die-casting machines. The hot chamber die casting machine has a high degree of automation, less material loss, and higher production efficiency than the cold chamber die casting machine. The aluminum alloy die castings that are widely used today can only be produced on cold chamber die casting machines due to their high melting point. The main feature of die casting is that the molten metal fills the cavity under high pressure and high speed, and is formed and solidified under high pressure. The air in the cavity is wrapped inside the casting to form subcutaneous pores, so aluminum alloy die castings should not be heat treated, and zinc alloy die castings should not be sprayed on the surface (but can be painted). Otherwise, the internal pores of the casting will expand due to thermal expansion and cause the casting to deform or bubble when the above-mentioned treatment is performed. In addition, the mechanical cutting allowance of die castings should also be smaller, generally around 0.5mm, which can not only reduce the weight of castings, reduce the amount of cutting to reduce costs, but also avoid penetrating the surface dense layer and exposing subcutaneous pores, causing The workpiece is scrapped.
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