Rapid Prototyping Journal: Volume 22 Issue 5

Guest editorial

David Bourell

Thermographic measurements of the commercial laser powder bed fusion process at NIST

Brandon Lane, Shawn Moylan, Eric P. Whitenton, Li Ma

Quantitative understanding of the temperatures, gradients and heating/cooling rates in and around the melt pool in laser powder bed fusion (L-PBF) is essential for simulation…

Temperature history within laser sintered part cakes and its influence on process quality

Stefan Josupeit, Hans-Joachim Schmid

The temperature distribution and history within laser sintered part cakes is an important aspect regarding the process quality and reproducibility of the polymer laser sintering…

In-situ thermal image correlation with mechanical properties of nylon-12 in SLS

William Walker Wroe, Jessica Gladstone, Tim Phillips, Scott Fish, Joseph Beaman, Austin McElroy

This paper aims to establish a method to verify in real time the quality of a part being built using Selective Laser Sintering (SLS).

Characterization of bulk to thin wall mechanical response transition in powder bed AM

Ben Brown, Wes Everhart, Joe Dinardo

In the development of powder bed additive manufacturing (AM) process parameters, the characterization of mechanical properties is generally performed through relatively large…

Direct laser deposition of Ti-6Al-4V from elemental powder blends

Lei Yan, Xueyang Chen, Wei Li, Joseph Newkirk, Frank Liou

This paper aims to achieve Ti-6Al-4V from Ti, Al and V elemental powder blends using direct laser deposition (DLD) and to understand the effects of laser transverse speed and…

Utilization of a microstructure sensitive fatigue model for additively manufactured Ti-6Al-4V

Brian Torries, Amanda J. Sterling, Nima Shamsaei, Scott M. Thompson, Steve R. Daniewicz

The purpose of this study is to calibrate a microstructure-based fatigue model for its use in predicting fatigue life of additively manufactured (AM) Ti-6Al-4V. Fatigue models…

Exploring variability of orientation and aging effects in material properties of multi-material jetting parts

Lindsey Bass, Nicholas Alexander Meisel, Christopher B. Williams

Understanding how material jetting process parameters affect material properties can inform design and print orientation when manufacturing end-use components. This study aims to…

Development, printability and post-curing studies of formulations of materials resistant to microbial attachment for use in inkjet based 3D printing

Belen Begines, Andrew L. Hook, Morgan R. Alexander, Christopher J. Tuck, Ricky D. Wildman

This paper aims to print 3D structures from polymers that resist bacterial attachment by reactive jetting of acrylate monomers.

Designing passive dynamic walking robots for additive manufacture

Fritz Stöckli, Fabio Modica, Kristina Shea

Ongoing research in computational design synthesis of passive dynamic systems aims to automatically generate robotic configurations based on a given task. However, an automated…

Construction by Contour Crafting using sulfur concrete with planetary applications

Behrokh Khoshnevis, Xiao Yuan, Behnam Zahiri, Jing Zhang, Bin Xia

This paper aims to report on the experiments with the Contour Crafting Automated Construction process using sulfur concrete as the choice of construction material.