پاورپوینت کارگاه ریخته گری، ذوب و مدل سازی (pptx) 39 اسلاید

دسته بندی : پاورپوینت

نوع فایل : PowerPoint (.pptx) ( قابل ویرایش و آماده پرینت )

تعداد اسلاید: 39 اسلاید

قسمتی از متن PowerPoint (.pptx) :

بنام خدا 1 کارگاه ریخته گری، ذوب و مدل سازی 2 اطلاعات شخصی اتاق شماره 547 همکف خوارزمی جدید تلفن داخلی: 380 ایمیل: m.r.rezaei@du.ac.ir 3 https://www.researchgate.net/profile/Mohammad_Reza_Rezaei2 https://www.linkedin.com/in/mohammad-reza-rezaei-a1147749 ارزشیابی 25% تئوری 65% عملی 10% حضور در کلاس 4 Casting Process in which molten metal flows by gravity or other force into a mold where it solidifies in the shape of the mold cavity The term casting also applies to the part made in the process 5 Capabilities and Advantages of Casting Can create complex part geometries that can not be made by any other process Can create both external and internal shapes Some casting processes are net shape; others are near net shape Can produce very large parts (with weight more than 100 tons) Casting can be applied to shape any metal that can melt Some casting methods are suited to mass production Can also be applied on polymers and ceramics 6 Parts Made by Casting Big parts Engine blocks and heads for automotive vehicles, wood burning stoves, machine frames, railway wheels, pipes, bells, pump housings Small parts Dental crowns, jewelry, small statues, frying pans All varieties of metals can be cast - ferrous and nonferrous 7 Disadvantages of Casting Different disadvantages for different casting processes: Limitations on mechanical properties Poor dimensional accuracy and surface finish for some processes; e.g., sand casting Safety hazards to workers due to hot molten metals Environmental problems 8 Steps in casting Melt the metal Pour it into a mold Let it freeze (Solidification) Remove Finish 9