Rapid Prototyping Journal: Volume 29 Issue 7

Wire arc additive manufacturing (WAAM) of nanotreated aluminum alloy 6061

Yitian Chi, Narayanan Murali, Jingke Liu, Maximilian Liese, Xiaochun Li

Additive manufacturing (AM) can achieve significant weight savings with only minor compromises in strength if high-performance wrought aluminum alloys are used as feedstock…

Algorithmic detection and categorization of partially attached particles in AM structures: a non-destructive method for the certification of lattice implants

Matthew Philip Masterton, David Malcolm Downing, Bill Lozanovski, Rance Brennan B. Tino, Milan Brandt, Kate Fox, Martin Leary

This paper aims to present a methodology for the detection and categorisation of metal powder particles that are partially attached to additively manufactured lattice structures…

Experimental investigations into additive manufacturing of styrene-ethylene-butylene-styrene block copolymers using solvent cast 3D printing technique

Arun Kumar, Pulak Mohan Pandey, Sunil Jha, Shib Shankar Banerjee

This paper aims to discuss the successful 3D printing of styrene–ethylene–butylene–styrene (SEBS) block copolymers using solvent-cast 3D printing (SC-3DP) technique.

Effects of gas flow speed on bead geometry and optical emissions during laser powder bed fusion additive manufacturing

Christopher Stutzman, Andrew Przyjemski, Abdalla R. Nassar

Powder bed fusion processes are common due to their ability to build complex components without the need for complex tooling. While additive manufacturing has gained increased…

Nondestructive observation of the surrounding powder in the vicinity of polymer laser-sintered specimens for understanding orange peel formation

Ryuichi Kobayashi, Ming Yang

Orange peel formation remains to be understood clearly because it is difficult to directly observe a laser-sintered process in a partcake. Therefore, this study aims to provide…

Additive manufacturing of flame retardant polyamide 12 with high mechanical properties from regenerated powder

Suzhu Yu, Aloysius Tan, Wei Ming Tan, Xinying Deng, Cher Lin Tan, Jun Wei

This paper aims to develop flame-retardant (FR) polyamide 12 (PA12) nanocomposite from regenerated powder via selective laser sintering (SLS), an additive manufacturing technique.

Rapid tooling: investigation of soft-tooled micro-injection moulding process characteristics using in-line measurements and surface metrology

Mert Gülçür, Kevin Couling, Vannessa Goodship, Jérôme Charmet, Gregory J. Gibbons

The purpose of this study is to demonstrate and characterise a soft-tooled micro-injection moulding process through in-line measurements and surface metrology using a…

Bead geometry–induced stress concentration factors in material extrusion polymer additive manufacturing

Saratchandra Kundurthi, Felix Tran, Si Chen, Javed Mapkar, Mahmoodul Haq

Material extrusion additive manufacturing processes inevitably produce bead-shaped surface patterns on the walls of parts, which create stress concentrations under load. This…

Single-filament-wide tensile-testing specimens reveal material-independent fibre-induced anisotropy for fibre-reinforced material extrusion additive manufacturing

Jiongyi Yan, Emrah Demirci, Andrew Gleadall

This study/paper aims to develop fundamental understanding of mechanical properties for multiple fibre-reinforced materials by using a single-filament-wide tensile-testing…

Selection of infill parameters considering their effects on operational and mechanical performance for material extrusion of CFR-PEEK

Heena Noh, Kijung Park, Hyun Woo Jeon

As newer high performance polymers in mechanical properties become available for material extrusion-based additive manufacturing, determining infill parameter settings becomes…

Development and printability of diamond-containing composite filament for material extrusion

Zhou Su, Xiangwang Kong, Tao He, Dongyu Wu, Jingjing Wu, Shaohe Zhang

Material extrusion technology is considered to be an effective way to realize the accurate and integrated manufacturing of high-performance metal diamond tools with complex…

Binder jetting of SS316L: a computational approach for droplet-powder interaction

Asif Ur Rehman, Kashif Azher, Abid Ullah, Celal Sami Tüfekci, Metin Uymaz Salamci

This study aims to describe the effects of capillary forces or action, viscosity, gravity and inertia via the computational fluid dynamics (CFD) analysis. The study also includes…

Dimensional accuracy and impact resistance of 3D printed clay reinforced with scrap polymer powder

Mattia Mele, Giampaolo Campana, Gregorio Pisaneschi, Luciano De Martino, Michele Ricciarelli

The purpose of this paper is to give an insight into relevant aspects of 3D printing of clay paste enhanced with scrap polymer powder which have not been investigated by previous…

Research on new technology of laser forging coupled arc welding of E690 marine steel

Wenlong Cai, Yongkang Zhang, Jianhang Liu

The purpose of this study is to reduce the cracks, pores and unfused defects in arc welding, improve the crystalline structure of the weld, refine its grains and improve the…

Hardness and modulus programmable tuning for silicone 3D printing device and experiment

Zhiwei Jiao, Zhongyu Zhuang, Li Hu, Ce Sun, Yuan Yu, Weimin Yang

The purpose of this study was to fabricate silicone products that had different hardnesses and moduli, thus partially addressing the limitations of homogeneous materials whose…