Timothy W. Simpson

Timothy W. Simpson Paul Morrow Professor of Engineering Design & Manufacturing

Basics

Additive Manufacturing Standards

There are gaps in additive manufacturing where no published standard or specification currently exists for AM to respond to a particular industry need. Learn about the resources and additive standards and make more sense of the growing technology in this sphere.

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Basics

Additive Manufacturing with Sheet Lamination

No longer limited to paper, Sheet Lamination bonds sheets of material together to form an object. Companies are now expanding to different materials for sheet lamination, exploring the growing possibilities of a process that started with gluing and stacking hundreds of colored sheets of paper together.

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Materials

What Is Material Jetting 3D Printing?

Recent advances in materials processing capabilities have renewed interest in material jetting, the additive process that allows 3D objects to be built by placing different combinations of material drop-by-drop.

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Metal

Material Extrusion: Now with Metal

Challenging our thinking about materials in metal additive manufacturing and the possibilities with material extrusion technology.

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Design

What Is Material Extrusion 3D Printing?

Material extrusion extrudes material through a nozzle and selectively deposits it layer-by-layer to form an object. After three decades of material advancements and a diverse array of start-ups and applications, the use cases for this technology are still going strong.

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Polymer

What Is Vat Photopolymerization?

Vat photopolymerization was the first AM process to be successfully commercialized. Three decades later, this technology has shown how AM is capable of scaling to volume production and making custom products on demand.

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Metal

Additive Manufacturing and Metal Casting

How is additive manufacturing disrupting metal casting? A hybrid approach to consider.

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Additive Manufacturing for Hard Tooling

Hybrid manufacturing is enabling tooling to be made with additive processes.

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Combining Additive and Subtractive Processes for Hybrid Manufacturing

At this point, we are still learning how to combine the two to optimize hybrid manufacturing.

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Metal

Additive Manufacturing with Wire

This system has the benefits of cheaper cost and easier handling. But there can be some drawbacks as well.

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Machining

Three Cool Uses for Directed Energy Deposition

Most machining professionals don’t like to admit that they ever make mistakes, but every now and then wouldn’t it be nice to have an “eraser” to go back and repair a gouge or fix a nicked edge? Or maybe you took off a bit too much material on that last machining pass and you’d like to add it back? Well, directed energy deposition (DED) enables you to do that and more.

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Energy & Power

What Is Directed Energy Deposition?

Analyzing directed energy deposition and powder-bed fusion provides a thorough understanding of the extra machining necessary for a “near-net shape” versus a “net shape” manufacturing process.

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