1. 2010012142 Kim won yeong

2. Sand Casting Pure Copper Casting Bronze Casting Chronium-Copper Casting Al-alloy Casting

3. Composition of Sand casting moldComposition of Sand casting mold

6. Gravity Mold Casting (permanent mold) Al-alloy casting Mg-alloy casting

8. Forging Pure Copper Copper alloy Al-alloy

10. The risers and runners are removed from the component (via cutting process).

12.  http://blog.daum.net/jhbjts1312/82 http://blog.daum.net/jhbjts1312/82  http://blog.naver.com/busang68?Redirect=Log&logNo=8014 5801949&jumpingVid=FEDA7EE0BF61785263CCE8AB4CC56 6E488AD http://blog.naver.com/busang68?Redirect=Log&logNo=8014 5801949&jumpingVid=FEDA7EE0BF61785263CCE8AB4CC56 6E488AD  http://blog.naver.com/sehonggima?Redirect=Log&logNo=9 0086605893&jumpingVid=FD83DDB52D2426595C2826AE0 E820EF3DC32 http://blog.naver.com/sehonggima?Redirect=Log&logNo=9 0086605893&jumpingVid=FD83DDB52D2426595C2826AE0 E820EF3DC32  http://www.youtube.com/watch?v=IYZOTt9zTv0 http://www.youtube.com/watch?v=IYZOTt9zTv0  http://www.youtube.com/watch?v=B5wCVI7jCyQ http://www.youtube.com/watch?v=B5wCVI7jCyQ