Page 180 - Fundamental of Engineering Design

Binder Jetting

◦ This technique uses a 3d printing style head moving on x, y and z axes to

deposit alternating layers of powdered material and a liquid binder as
an adhesive.

◦ The materials commonly used in Binder Jetting are metals, sand, and

ceramics that come in a granular form.

◦ The typical layer height depends on the material: for full color models
the typical layer height is 100 microns, for metal parts 50 microns and for

sand casting mold materials 200-400 microns.

◦ A key advantage of Binder Jetting over other 3D printing processes is

that bonding occurs at room temperature. This means that dimensional
distortions connected to thermal effects (such as warping

in FDM, SLS, DMSL/SLM or curling in SLA/DLP) are not a problem in Binder

Jetting.

◦ Binder Jetting is used in various applications, including the fabrication
of full-color prototypes (such as figurines), the production of large sand-

casting cores and molds and the manufacture of low-cost 3D printed

metal parts.
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