Mechanical Processing and Manufacturing Edition [One Question per Day] 2019.05.23

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2.jpg【It is indeed delightful to study and apply what one has learned from time to time! 】 I went on a training course a few days ago; now that I’m back, I’ll continue with one question per day. For parts with complex shapes, casting blanks are generally used. A small number of high-quality castings with smaller dimensions can be produced using special molding methods such as ( ) casting, ( ) casting, and investment casting. The answers can be found here: Centrifugation, Pressure. Rules for answering questions and management: 1. A full set of wrong answers earns 2 wealth points; partial correct answers earn 5 wealth points; a fully correct set of answers earns 8 wealth points ； 2. Rewards for answers are available once per person, and each response can receive a management rating only once ； 3. The reply reward is valid for 48 hours; after that, this post will be removed.