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In the production of hook which could endure the wear and be used for a long lifetime, enabling the net production with a good efficiency have been intensively studied to determine the forming method for achieving desired quality and getting higher fine surface of net hook. Metal casting process is the oldest method known to produce by a casting process in Investment Casting so called “Lost Wax” casting. For the design of mold casting in the lost wax casting process, it is critical to get the smooth flow behavior of stainless steel at a temperature higher than 1600°C. The CAST-DESIGNERTM program analyzes the flow of liquid metal to represent the simulation of the solidification for stainless steel cause defects in the products. The unsuitability of heat transfer phenomena and the use of the unsuitable mold are the main conditions leading to the defective casting with defects such as misruns, cold shuts, shrinkage, pin holes, air holes and porosity in final products.
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