Additive Manufacturing Technologies: 3D Printing, Rapid by Ian Gibson, David Rosen, Brent Stucker

By Ian Gibson, David Rosen, Brent Stucker

This booklet covers intimately many of the points of becoming a member of fabrics to shape elements. A conceptual review of quick prototyping and layered production is given, starting with the basics in order that readers can wake up to hurry fast. strange and rising functions corresponding to micro-scale production, clinical functions, aerospace, and speedy production also are mentioned. This booklet offers a finished review of fast prototyping applied sciences in addition to help applied sciences equivalent to software program platforms, vacuum casting, funding casting, plating, infiltration and different systems.

This publication also:

Reflects contemporary advancements and developments and adheres to the ASTM, SI, and different standards

Includes chapters on automobile expertise, aerospace know-how and inexpensive AM technologies

Provides a huge diversity of technical inquiries to confirm entire knowing of the strategies covered

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Extra info for Additive Manufacturing Technologies: 3D Printing, Rapid Prototyping, and Direct Digital Manufacturing

Sample text

Currently, AM technology focuses on reproducing geometric form and so the better CAD systems to use are those that produce such forms in the most precise and effective way. Early CAD systems were extremely limited by the display technology. The first display systems had little or no capacity to produce anything other than alphanumeric text output. Some early computers had specialized graphic output devices that displayed graphics separate from the text commands used to drive them. Even so, the geometric forms were shown primarily in a vector form, displaying wireframe output.

For example, SL uses a laser as part of the build mechanism that will normally be positioned using galvanometric mirror drives. The resolution of the galvanometers would 12 1 Introduction and Basic Principles determine the overall dimensions of parts built, while the diameter of the laser beam would determine the minimum wall thickness. The accuracy of CNC machines on the other hand is mainly determined by a similar positioning resolution along all three orthogonal axes and by the diameter of the rotary cutting tools.

However, use of CNC to shape softer materials is focused on preparing these parts for use in a multistage process like casting. When using CNC machining to make final products, it works particularly well for hard, relatively brittle materials like steels and other metal alloys to produce high accuracy parts with well-defined properties. Some AM parts, in contrast, may have voids or anisotropy that are a function of part orientation, process parameters or how the design was input to the machine, whereas CNC parts will normally be more homogeneous and predictable in quality.

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