Forming process where a sand mold made of resin-bonded sand used to create a molded product. Resin binders are natural or synthetic high melting point gums. Compared with conventional sand mold, resin sand can be packed more tightly giving it higher strength. Thus one can maintain higher tolerances accuracy and larger casting.
Tooling Design and Tooling Making
Designing and making cope pattern plate, drag pattern plate and core box.
Preparing Resin Sand For Molding
Mixing resin with sand.
Core halves pasted together
Making the cores in core box and pasted cores together.
Packing the resin sand around the cope pattern plate, sprue and risers. Then remove the extra sand, pattern, sprue and risers.
Packing the resin sand around the drag pattern plate. Then remove the extra sand and pattern.
Setting core in the drag.
Cope and Drag Assembly
Assembled cope on the top of drag and securely clamped them together.
Molten metal is poured into the resin sand mold.
Casting is removed from resin sand mold. Shakeout the core and resin sand from casting.
Cutting sprue and risers on casting.
Finished parts are heat treated to desire hardness as requested.
Removed extra residual material on the casting surface and stress release casting stress that create during the casting process.
Castings undergo thorough testing and inspection to ensure that they meet dimension tolerances and specifications.
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