... affects interlayer bonding and print quality. Optimization Fused deposition modelling Rapid prototyping Fabrication Taguchi methods Three-dimensional (3D) printing, also known as rapid prototyping (RP), is a manufacturing technology that creates parts using computer-aided design...

... and economical. Design/methodology/approach In the proposed formwork system, ice is used as mould pattern to create desired geometry for concrete member, then sand mould is fabricated based on the ice pattern. A mix design and a mixing procedure for the proposed sand mould are developed, and compression...

.../approach This study introduces a series of transition types that have graded properties and are produced using a finite number of discrete materials. This study presents a workflow for generating, fabricating and testing these transition types. This study uses this workflow with two different...

... reinforced with Mg particles for fused filament fabrication of porous scaffolds for biomedical applications. Design/methodology/approach The mixture of PLA pellets and Mg particles was extruded twice, the second time using a precision extruder that produces a filament with zero porosity, constant...

...Xinlin Wang; Dewei Deng; Hongchao Zhang Purpose This study aims to investigate the effects of mass energy and line mass on the geometrical dimensions, microstructures, hardness and mechanical properties of direct laser fabrication parts. Design/methodology/approach Direct laser fabrication...

...Yigong Liu; Qudus Hamid; Jessica Snyder; Chengyang Wang; Wei Sun Purpose This paper aims to present a solid freeform fabrication-based in situ three-dimensional (3D) printing method. This method enables simultaneous cross-linking alginate at ambient environmental conditions (temperature...

... the final polishing medium. 19 03 2015 02 07 2015 04 07 2015 © Emerald Group Publishing Limited 2016 Emerald Group Publishing Limited Licensed re-use rights only Process design Layered manufacturing Friction Fabrication Microstructure Process innovation...

... 3D printer. This methodology can fabricate channels down to 250 μm and withstand pressures of up to 5 ± 0.2 MPa. The manufacturing times are much shorter than in soft lithography processes. Design/methodology/approach – The novel manufacturing method developed takes advantage of the recently...

... and the shift from high-end additive technologies to consumer’s entry-level 3D printing is taken as an entry point. Indeed, digital fabrication has recently received extensive media coverage and the maker movement has become a trendy subject for numerous influential publications. In the makerspaces that were...

.... The term stereolithography (SLA) was first introduced in 1986 by Charles W. Hull, who defined it as a method based on photo-polymerization of liquid monomer resin for fabricating solid parts. An SLA device typically consists of a vat filled with liquid resin (acrylic or epoxy resin), a movable elevator...

...P.J. Bartolo; G. Mitchell A new fabrication process for rapid prototyping is proposed in this paper. Optical and thermal effects are simultaneously used in this process to locally induce a phase change in a liquid resin. This phase change phenomena is used to “write” three‐dimensional shapes...

...Behrokh Khoshnevis; Bahram Asiabanpour; Mehdi Mojdeh; Kurt Palmer Selective inhibition of sintering (SIS) is a layered fabrication process which is capable of rapidly producing accurate functional parts out of polymers and metals using a relatively inexpensive machine. This article presents a brief...

...A.A. Tseng; M. Tanaka Two newly invented deposition techniques for the freeform fabrication of metal and ceramic parts are presented. The first deposition technique studied is one that can deposit variable sizes of filaments in a controlled manner. The second technique consists of layer deposition...

...Behrokh Khoshnevis; Satish Bukkapatnam; Hongkyu Kwon; Jason Saito This paper presents research about the adaptation of Contour Crafting, a novel prototyping process, for two carefully chosen uncured ceramic materials. The details of the construction and operation of the fabrication machine, as well...

...Dan Qiu; Noshir A. Langrana; Stephen C. Danforth; Ahmad Safari; Mohsen Jafari To fabricate high quality parts, and to make the development generic yet compatible with the in‐house hardware, a virtual simulation system has been developed, and an in‐house intelligent multi‐material toolpath...

...Feng Lin; Yongnian Yan; Wei Sun A mathematical model to describe the principle of layered manufacturing and layered fabrication error is presented in this paper. In this model, the layered manufacturing process is characterized by the model decomposition and material accumulation. A 3D design model...

... with the smallest slice thickness and better model accuracy. In order to maintain thinner layer thickness and model accuracy, a cutter is employed to plane off the deposited surface. The fabrication speed for MM models is extremely low because of the employment of the tiny jet and the cutting operation. The model...

...Haeseong Jee; Emanuel Sachs Rapid prototyping technologies can create a physical part directly from a digital model by accumulating layers of a given material. Providing tremendous flexibility in the part geometry that they can fabricate, these technologies present an opportunity for the creation...

... prototyping technologies and their ability to make components for wind tunnel models in a timely and cost effective manner. Components and corresponding fabrication technologies were put into three categories: non‐structurally loaded, lightly loaded and highly loaded according to the stress endured during...

... in which piezoelectric ceramics and composites with novel and conventional designs were fabricated using rapid prototyping techniques. Fused deposition of ceramics, fused deposition modeling, and Sanders prototyping techniques were used to fabricate lead‐zirconate‐titanate ceramics and ceramic/polymer...