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As noted earlier, the thixocasting process was the first semi-solid process <br>to be commercialized. Thixocasting consists of three separate stages: the <br>production of a pre-cast billet having the special globular microstructure, <br>the re-heating of these billets to the semi-solid casting temperature and <br>the casting of the components (see Figure 2). <br>Thixocasting is capable of producing extremely high quality components <br>having excellent mechanical and functional properties. The billet feed <br>material is typically produced by aluminum companies in batches as large <br>as 50,000 lbs. These pre-cast bars provide billet-to-billet and lot-to-lot <br>chemistry, cleanliness and microstructural repeatability comparable to <br>penempaan dan rolling stock, dan jauh lebih konsisten daripada biasanya <br>dicapai ketika menuangkan coran dari cairan dalam dosis tunggal [4]. Dengan demikian <br>komponen semi-padat yang dihasilkan oleh thixocasting cenderung memiliki sangat <br>sifat konsisten. Kerugian utama terkait dengan <br>thixocasting adalah biaya produksi yang lebih tinggi, yang timbul baik dari premium <br>melekat pada bahan baku khusus, serta ketidakmampuan untuk dengan mudah recycle <br>biskuit dan pelari.
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