REPORT

3D-Printing

Submitted By:

Haseeb-Ur-Rehman

5864 SUBMITTED TO: Prof Sajid Ullah Butt

Introduction and process:

3D printing is a manufacturing process that build layers to create a three-dimensional solid object from a digital model. 3D printing can produce parts with geometric features that cannot be accomplished by other manufacturing processes ExOne builds functional 3D objects from the bottom up, one layer at a time with durable, industrial-strength materials. ExOne® 3D printing systems selectively bind thin, cross-sectional layers of fine powder. As the printhead passes over the powder bed, binder is deposited into the powder. The powder bed lowers and is coated with another layer of the print powder. With each successive pass of the printhead, more of the object is bound until a near-net shape object is completed.ExOne uses Binder Jetting technology to 3D print complex parts in industrial-grade materials.

Binder Jetting is an additive manufacturing process in which a liquid binding agent is selectively deposited to join powder particles. Layers of material are then bonded to form an object. The printhead strategically drops binder into the powder. The job box lowers and another layer of powder is then spread and binder is added. Over time, the part develops through the layering of powder and binder.

Metal printing:

In this type the part printed is the required part itself.

Sand printing:

In this type we print the mold or the core first and then carry out traditional casting process to create the part we desire.

Advantages:

1) we can print anything we think of because we only have to create a file in maya or solid works e.t.c.

2) less labor work required than other processes.

Note: Ex-one is the name of the company which manufactures 3-D printers.