Green Sand Casting
These castings are made using sand molds formed from “wet” sand which contains water and organic bonding compounds, typically referred to as clay. The ability to quickly make molds through automated machines makes green sand casting economical and popular for making medium to high volume castings since the automated processes allows for a lot of molds to be quickly made at an affordable cost.
Step 1
Tooling Design and Tool-Making
Designing and making cope pattern plate, drag pattern plate and core box.
Step 2
Core halves pasted together
Making the cores in the core box and pasting the cores together.
Step 3
Molding Cope
Packing the sand around the cope pattern plate, sprue and risers. Afterwards, remove the extra sand, pattern, sprue and risers.
Step 4
Molding Drag
Pack the sand around the drag pattern plate. Then remove the extra sand and pattern.
Step 5
Core Setting
Setting core in the drag.
Step 6
Cope and Drag Assembly
Assemble the cope on the top part of the drag then securely clamp them together.
Step 7
Casting
Molten metal is poured into the sand mold.
Step 8
Sand Removal
Casting is removed from the sand mold. Shake out the core and sand from the casting.
Step 9
Cut Off
Cut the sprues and risers off the casting.
Step 10
Heat Treatment
Finished parts are heat treated to desire hardness as requested.
Step 11
Shot-blasting
Remove extra residue material on the casting surface and release casting stress created during the casting process.
Step 12
Final Inspection
Castings undergo thorough testing and inspection to ensure that they meet dimension tolerances and specifications.
IRWIN CO., LTD.
5F, No. 189, Sin Hu 3rd Road, Nei Hu District, Taipei 11494, Taiwan
Tel +886-2-8791-7296 | Fax +886-2-8792-1259
info@irwin.com.tw