Advanced Design Applied to an Original Multi-Purpose Ventilator Achievable by Additive Manufacturing

In an increasingly competitive business world, the “time to market” of products has become a key factor for business success. There are different techniques that anticipate design mistakes and launch products on the market in less time. Among the most used methodologies in the design and definition of the requirements, quality function deployment (QFD) and design for Six Sigma (DFSS) can be used. In the prototyping phase, it is possible to address the emerging technology of additive manufacturing. Today, three-dimensional printing is already used as a rapid prototyping technique. However, the real challenge that industry is facing is the use of these machineries for large-scale production of parts, now possible with new HP multi-fusion. The aim of this article is to study the entire product development process taking advantage of the most modern models and technologies for the final realization of a case study that involves the design and prototyping of an innovative multifunctional fan (lamp, aroma diffuser and fan) through the Multi Jet Fusion of HP. To begin with, issues related to the DFSS, the QFD and their application to identify the fan requirements are explored. Once the requirements have been defined, the modern CAD design systems and the CAE systems for the validation of the case study will be analyzed and applied. Finally, HP's Multi Jet Fusion methodology and design rules for additive manufacturing will be analyzed in detail, trying to exploit all the positive aspects it offers.

Download Full-text

Design for Additive Manufacturing and Advanced Development Methods Applied to an Innovative Multifunctional Fan

Additive Manufacturing ◽

10.4018/978-1-5225-9624-0.ch003 ◽

2020 ◽

pp. 52-85

Author(s):

Leonardo Frizziero ◽

Giampiero Donnici ◽

Alfredo Liverani ◽

Karim Dhaimini

Keyword(s):

Additive Manufacturing ◽

Quality Function Deployment ◽

Large Scale ◽

Three Dimensional ◽

Product Development Process ◽

Business Success ◽

Scale Production ◽

Key Factor ◽

Definition Of

In an increasingly competitive business world, the “time to market” of products has become a key factor for business success. There are different techniques that anticipate design mistakes and launch products on the market in less time. Among the most used methodologies in the design and definition of the requirements, quality function deployment (QFD) and design for Six Sigma (DFSS) can be used. In the prototyping phase, it is possible to address the emerging technology of additive manufacturing. Today, three-dimensional printing is already used as a rapid prototyping technique. However, the real challenge that industry is facing is the use of these machineries for large-scale production of parts, now possible with new HP multi-fusion. The aim of this article is to study the entire product development process taking advantage of the most modern models and technologies for the final realization of a case study that involves the design and prototyping of an innovative multifunctional fan (lamp, aroma diffuser and fan) through the Multi Jet Fusion of HP. To begin with, issues related to the DFSS, the QFD and their application to identify the fan requirements are explored. Once the requirements have been defined, the modern CAD design systems and the CAE systems for the validation of the case study will be analyzed and applied. Finally, HP's Multi Jet Fusion methodology and design rules for additive manufacturing will be analyzed in detail, trying to exploit all the positive aspects it offers.

Download Full-text

A Review on Additive Manufacturing Possibilities for Electrical Machines

Energies ◽

10.3390/en14071940 ◽

2021 ◽

Vol 14 (7) ◽

pp. 1940

Author(s):

Muhammad Usman Naseer ◽

Ants Kallaste ◽

Bilal Asad ◽

Toomas Vaimann ◽

Anton Rassõlkin

Keyword(s):

Additive Manufacturing ◽

Large Scale ◽

Three Dimensional ◽

Electrical Machines ◽

Electromagnetic Properties ◽

Scale Production ◽

Performance Parameters ◽

Large Scale Production ◽

One Step ◽

Manufacturing Techniques

This paper presents current research trends and prospects of utilizing additive manufacturing (AM) techniques to manufacture electrical machines. Modern-day machine applications require extraordinary performance parameters such as high power-density, integrated functionalities, improved thermal, mechanical & electromagnetic properties. AM offers a higher degree of design flexibility to achieve these performance parameters, which is impossible to realize through conventional manufacturing techniques. AM has a lot to offer in every aspect of machine fabrication, such that from size/weight reduction to the realization of complex geometric designs. However, some practical limitations of existing AM techniques restrict their utilization in large scale production industry. The introduction of three-dimensional asymmetry in machine design is an aspect that can be exploited most with the prevalent level of research in AM. In order to take one step further towards the enablement of large-scale production of AM-built electrical machines, this paper also discusses some machine types which can best utilize existing developments in the field of AM.

Download Full-text

Towards the large-scale production and strength prediction of near-eutectic AlxCoCrFeNi2.1 alloys by additive manufacturing

Manufacturing Letters ◽

10.1016/j.mfglet.2020.06.002 ◽

2020 ◽

Vol 25 ◽

pp. 16-20 ◽

Cited By ~ 1

Author(s):

J. Joseph ◽

M. Imran ◽

P.D. Hodgson ◽

M.R. Barnett ◽

D.M. Fabijanic

Keyword(s):

Additive Manufacturing ◽

Large Scale ◽

Strength Prediction ◽

Scale Production ◽

Large Scale Production

Download Full-text

Large-Scale Farming and Land Reform Beneficiaries in South Africa: Lessons From a Case Study in Limpopo Province

Journal of Asian and African Studies ◽

10.1177/0021909620937465 ◽

2020 ◽

pp. 002190962093746

Author(s):

Clemence Rusenga

Keyword(s):

South African ◽

Land Reform ◽

Large Scale ◽

Rural Livelihoods ◽

Limpopo Province ◽

Scale Production ◽

African Government ◽

Large Scale Production ◽

The Government

The South African government intends to improve rural livelihoods through land and agrarian reform. However, in doing so the government is enforcing large-scale production in the land reform projects with little regard for the beneficiaries’ background or capabilities, which are not suited to large-scale production. The article demonstrates how large-scale farming is negatively affecting land beneficiaries’ production by undermining their ability to produce the quality products (and adequate quantities) that satisfy the standards in the increasingly concentrated markets dominated by agribusiness.

Download Full-text

A case study on large-scale production for iron oxide pellets: Ezhou pelletization plant of the BAOWU

Mineral Processing and Extractive Metallurgy Review ◽

10.1080/08827508.2017.1415209 ◽

2017 ◽

Vol 39 (3) ◽

pp. 211-215 ◽

Cited By ~ 4

Author(s):

Yunliang Zhao ◽

Wenhe Wu ◽

Tiejun Chen ◽

Shaoxian Song

Keyword(s):

Iron Oxide ◽

Large Scale ◽

Scale Production ◽

Large Scale Production ◽

Pelletization Plant

Download Full-text

PROPAGATION AND PRODUCTION OF GAC (MOMORDICA COCHINCHINENSIS SPRENG.), A GREENHOUSE CASE STUDY

Experimental Agriculture ◽

10.1017/s0014479712001081 ◽

2012 ◽

Vol 49 (2) ◽

pp. 234-243 ◽

Cited By ~ 9

Author(s):

SOPHIE E. PARKS ◽

CARLY T. MURRAY ◽

DAVID L. GALE ◽

BASEM AL-KHAWALDEH ◽

LORRAINE J. SPOHR

Keyword(s):

Large Scale ◽

Scale Production ◽

Large Scale Production ◽

Momordica Cochinchinensis ◽

Increasing Demand ◽

Potential Methods ◽

Enhancing Production ◽

First Time ◽

Male To Female

SUMMARYGreater cultivation of the underutilised Gac fruit, Momordica cochinchinensis, by poorly resourced householders and farmers would potentially improve livelihoods, and, on a larger scale, meet the increasing demand for Gac as a health product. Cultivation methods need to be developed to suit small- and large-scale production and must consider the unpredictable ratio of male to female plants grown from seed, and slow growth induced by cool temperatures. In this study, we examined the responses of Gac to propagation and protected cropping techniques to identify potential methods for increasing production. Plants germinated from seed in seed-raising mix under warm and humid conditions were grown hydroponically to maturity in a climate-controlled greenhouse during a temperate winter, producing fruits that were harvested ripe, from 44 weeks after sowing. Cuttings taken from female plants were dipped in indole-3-butyric rooting hormone powder or gel, or were left untreated, and then placed in rock wool, potting mix, water or closed media sachet. All treatment combinations, with the exception of the untreated potting mix, permitted the development of healthy plants in a second greenhouse crop. Growing plants from seed, then vegetatively increasing the number of productive female plants by cuttings is a means to increase Gac production with limited resources. Gac production using greenhouse technology, as described here for the first time, is relevant to other temperate regions. The finding that larger fruits have a higher percentage of edible aril than smaller fruits provides a new area of investigation towards enhancing production.

Download Full-text