scholarly journals Optimization for sustainable manufacturing based on axiomatic design principles: a case study of machining processes

2014 ◽  
Vol 9 (1) ◽  
pp. 31-43 ◽  
Author(s):  
G.B. Lee ◽  
O. Badrul
Keyword(s):  
Sustainable Manufacturing ◽  
Axiomatic Design ◽  
Design Principles ◽  
Machining Processes

Hybrid Model for Evaluation of Manufacturing Sustainability Using Axiomatic Design Principles: A Case of Machining Processes

2014 ◽  
Vol 554 ◽  
pp. 546-550 ◽  
Author(s):  
Lee Guang Beng ◽  
Badrul Omar
Keyword(s):  
Hybrid Model ◽  
Environmental Performance ◽  
Sustainable Manufacturing ◽  
Axiomatic Design ◽  
Machining Processes ◽  
Sustainable Product ◽  
Sustainability Principles ◽  
Product Realization ◽  
Selection Of

Despite being a manufacturing technique that consumes energy and material, machining is often regarded as an important process due to the fact that it is flexible and is able to produce economic parts. However, to gain more cost-saving and enhanced environmental performance, sustainability principles have to be incorporated into machining technologies. This paper presents a case study that applies both crisp and fuzzy axiomatic design approach to construct a hybrid model with the purpose of facilitating the selection of sustainable manufacturing process. By converting numerical terms and linguistic factors into quantifiable score (in the form of information content), the proposed approach is able to produce indicative results and is capable of identifying the most sustainable process among three alternatives. Potentially, such information can be helpful for product development companies which strive to achieve sustainable product realization.

On Sustainability Assesment of Machining Processes

2013 ◽  
Author(s):  
Syed Waqar Raza ◽  
Ibrahim Mostafa Deiab
Keyword(s):  
Material Removal ◽  
Manufacturing Systems ◽  
Sustainability Assessment ◽  
Sustainable Manufacturing ◽  
Holistic Approach ◽  
Energy Sustainability ◽  
Machining Processes ◽  
Design For Sustainability ◽  
User Friendly

There is an increased interest in sustainability assessment of manufacturing systems and processes because of the growing global interest in sustainable manufacturing practices. The current sustainability assessment models present a holistic approach, e.g. LCA, without much focus on process specific details. This paper uses a ‘XSI’ approach for defining sustainability indices (e.g. Energy Sustainability Index, ESI). These sustainability metrics can quantify machining processes in terms of impact on the environment and power consumption in a flexible manner, so that various material removal processes can be rated on a uniform scale. In addition, the concept of Normalization, with respect to the ‘feature-of-interest’ is introduced, thus presenting a flexible rating system in terms of process types (turning, milling etc.) and perspectives (material removal, quality etc.). A user-friendly calculator is developed, which converts a set of inputs for the machining scenario into a set of measurable rating quantities and indices including but not limited to production rate, production cost, tool life/cost, energy consumption and environmental burden. This will enable the manufacturing engineer to make an informed decision about parameter selection and process design for sustainability. Machining of hard-to-machine materials such as Titanium Alloys is such a scenario, which is used as a case study to validate the proposed approach.

scholarly journals A Regenerative Business Model with Flexible, Modular and Scalable Processes in A Post-Covid Era: The Case of The Spinning Mesh Disc Reactor (SMDR)

2021 ◽  
Vol 13 (12) ◽  
pp. 6944
Author(s):  
Emma Anna Carolina Emanuelsson ◽  
Aurelie Charles ◽  
Parimala Shivaprasad
Keyword(s):  
Business Model ◽  
Low Cost ◽  
Sustainable Manufacturing ◽  
Sustainable Business ◽  
Capital Costs ◽  
Implementing Change ◽  
Chemical Manufacturing ◽  
Manufacturing Techniques ◽  
Flexible Operation

With stringent environmental regulations and a new drive for sustainable manufacturing, there is an unprecedented opportunity to incorporate novel manufacturing techniques. Recent political and pandemic events have shown the vulnerability to supply chains, highlighting the need for localised manufacturing capabilities to better respond flexibly to national demand. In this paper, we have used the spinning mesh disc reactor (SMDR) as a case study to demonstrate the path forward for manufacturing in the post-Covid world. The SMDR uses centrifugal force to allow the spread of thin film across the spinning disc which has a cloth with immobilised catalyst. The modularity of the design combined with the flexibility to perform a range of chemical reactions in a single equipment is an opportunity towards sustainable manufacturing. A global approach to market research allowed us to identify sectors within the chemical industry interested in novel reactor designs. The drivers for implementing change were identified as low capital cost, flexible operation and consistent product quality. Barriers include cost of change (regulatory and capital costs), limited technical awareness, safety concerns and lack of motivation towards change. Finally, applying the key features of a Sustainable Business Model (SBM) to SMDR, we show the strengths and opportunities for SMDR to align with an SBM allowing for a low-cost, sustainable and regenerative system of chemical manufacturing.

scholarly journals FEM and Analytical Modeling of the Incipient Chip Formation for the Generation of Micro-Features

Materials ◽  
2021 ◽  
Vol 14 (14) ◽  
pp. 3789
Author(s):  
Michele Lanzetta ◽  
Marco Picchi Picchi Scardaoni ◽  
Armin Gharibi ◽  
Claudia Vivaldi
Keyword(s):  
Material Properties ◽  
Analytical Modeling ◽  
Cutting Tool ◽  
Sustainable Manufacturing ◽  
Cutting Parameters ◽  
Micro Machining ◽  
Machining Processes ◽  
Steel Alloys ◽  
Diamond Blade ◽  
Micro Features

This paper explores the modeling of incipient cutting by Abaqus, LS-Dyna, and Ansys Finite Element Methods (FEMs), by comparing also experimentally the results on different material classes, including common aluminum and steel alloys and an acetal polymer. The target application is the sustainable manufacturing of gecko adhesives by micromachining a durable mold for injection molding. The challenges posed by the mold shape include undercuts and sharp tips, which can be machined by a special diamond blade, which enters the material, forms a chip, and exits. An analytical model to predict the shape of the incipient chip and of the formed grove as a function of the material properties and of the cutting parameters is provided. The main scientific merit of the current work is to approach theoretically, numerically, and experimentally the very early phase of the cutting tool penetration for new sustainable machining and micro-machining processes.

A Method for Classifying Products Designed for the Developing World

2016 ◽  
Author(s):  
Paden M. Troxell ◽  
Charles Kim
Keyword(s):  
Developing World ◽  
Design Principles ◽  
Product Class ◽  
Specific Design ◽  
Step Method ◽  
Specific Product ◽  
Potential Value ◽  
Design Characteristics ◽  
Design Guidance

Researchers in the area of design for the developing world have synthesized knowledge from location-specific product case studies in the form of design guidance, which includes pitfalls, principles, and methods. Much of the design guidance relates to specific product classes and regions, while recent work is directed towards generalized principles. The aim of this paper is to fill gaps in product class-specific design guidance by creating larger groups of similar products, which share design characteristics. In this paper, we present a method for classifying products into such groups utilizing cluster analysis. We present a five-step method, which includes optional synthesis of design principles. The potential value of the method is demonstrated in a case study. The result included two distinct product groups, titled Products for Relief and Products for Development, and corresponding design principles for each group.

Design of a University-Based Venture Gestation Program (UVGP)

2016 ◽  
Vol 24 (01) ◽  
pp. 1-35 ◽  
Author(s):  
Hoe Chin Goi ◽  
Jiro Kokuryo
Keyword(s):  
Design Science ◽  
Business Plan ◽  
Design Principles ◽  
Solution Model ◽  
Dynamic Capability ◽  
Comparative Case Study ◽  
Competency Development ◽  
Entrepreneurial Bricolage ◽  
Science Methodology

Design science methodology was used to develop and test a University-based Venture Gestation Program (UVGP), the model built after identifying key problems and reactions to them in student based gestation ventures. The model relied on a three-year longitudinal comparative case study of a successful and an unsuccessful student venture team. The teams came from the same university and were winners of business plan contests in 2012 and 2013. Although the teams were very similar to begin with, analyses revealed that different responses to three shared problems were key determinants of venture gestation success, and failure. Based on these observations, three design principles, termed tenure, competence compatibility and entrepreneurial bricolage, were adapted to derive a solution model, the Venture Gestation Model (VGM), with the aim of improving chances of venture success. To develop the model, the study drew on dynamic capability theory, and subsequently yielded the UVGP which provided concrete tools (prescriptions) toward gestation venture success. As a means of testing the designed solution, an evaluation of the program was conducted by observing the gestation venture of the 2014 winner of the annual contest. Findings show that gestation success depends more on the effectiveness of the program in increasing awareness of internal problems than on reactions to external changes. However, the prescription on competency development requires revision to overcome inadequacy issues.

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