If the core is very long, or only one edge can protrude from the mold, then chapletsare used to help anchor the core in place. Chaplets are often made of the same … See more

The tendency of the core to float is one reason precise understanding of the mechanical strength of the core sand is important. Tests of shear and tensile strength ar… See more

Cores are made by many of the same methods employed for sand molds. In addition, core blowers and screw feed machinesare used. Core blowers force sand into th… See more

After a core is finished curing, it will often be finished by hand. Along the parting lines of the core box there might be “fins” to be filed. Sometimes, cores are made in multiple par… See more

The ability to make and place sand cores is a vital part of the casting process. In some instances, the core is necessary for the utility of the final part: tubes, engines, and other mech… See more