scholarly journals Improving the Availability of Manufacturability Information through Decentralization of Process Planning

2008 ◽  
Vol 31 (1) ◽  
pp. 102-117
Author(s):  
Eliab Z Opiyo
Keyword(s):  
Product Development ◽  
Production Process ◽  
Process Planning ◽  
Research Issues ◽  
Main Research ◽  
Detail Design ◽  
Planning Phase ◽  
Computer Based ◽  
Prototype Software

Process planning is part of the general product development and production process that usually follows design and precedes manufacturing. Manufacturability and process planning information in general play central role in many product development and production activities, including paradoxically, conceptual and detail design - the activities that take place before process planning. The need of conducting some of the process planning activities formally before or during design is thus rather obvious. One of the main research issues is therefore the identification of the process planning activities that can be performed before the traditional process planning phase and handling of the process planning information so as to adequately provide the designers with the manufacturability informationneeded during conceptual and detail design. Another issue is how to support collaboration during process planning and how to maintain continuity of the process planning tasks. This paper suggests the decentralization of the process planning task and proposes the execution of the process planning activities in a piecemeal fashion, starting right afterreceiving an order and specifying the requirements for a product. Process planning under the proposed procedure consists of six semi-autonomous sub-phases, some of which comprise activities that must be conducted prior to the process planning phase. This helps to overcome the problem of timely availability of manufacturability information during the execution of upstream and downstream product development and production activities. The paper alsoproposes a computer-based method of handling the manufacturability information generated in various stages of the product development and production process. A database design and structure of prototype software that manages the process planning information are presented and discussed. Furthermore, a case study conducted to explore howthe proposed process planning procedure could be put in use is presented and discussed.

Developing methodologies for robust mechanical engineering design

1997 ◽  
Vol 211 (3) ◽  
pp. 179-188 ◽  
Author(s):  
W Dunsmore ◽  
G Pitts ◽  
S M Lewis ◽  
C J Sexton ◽  
C P Please ◽  
...  
Keyword(s):  
Engineering Design ◽  
Product Performance ◽  
Design Stage ◽  
Design Parameters ◽  
Cam Mechanism ◽  
Detail Design ◽  
Functional Reliability ◽  
Computer Based ◽  
Industrial Context

This paper considers robust product design applied to mechanical systems via computer-based models at the detail design stage. This involves the efficient use of computer-based experiments to understand how product performance, both its mean and variability, depends on the design parameters. The integration of the general concepts and practical tools is described in terms of the design process, with the aim of making the techniques accessible to designers in an industrial context. The approach is motivated from a design for quality standpoint and is directed principally at improving functional reliability, while addressing issues of performance and cost. The approach is illustrated using a case study on the robust design of a cam mechanism.

The Contribution of Ergonomic Analysis in the Product Design for Recycling

2011 ◽  
pp. 365-378
Author(s):  
Eduardo Romeiro Filho ◽  
Rose Mary Rosa de Lima
Keyword(s):  
Product Development ◽  
Production Process ◽  
Product Development Process ◽  
Design For Environment ◽  
Design For X ◽  
Design For Recycling ◽  
Belo Horizonte ◽  
Ergonomic Analysis ◽  
Environmental Demands

This chapter presents a case study about approaches dealing with Design for “X” (DFX), with emphasis on Design for Environment (DFE), specifically Design for Recycling (DFR) and Design for Disassembly (DFD), in a particular social and economic situation, in Belo Horizonte, Minas Gerais, Brazil. This approach is justified by the necessity of considering the environmental demands in the production process as well as the information about social demands needed by the designers in the product development process. This research shows that the products are designed only for adaptation on the production process and the demands of consumers. Having the environmental questions in mind, the designers need also consider how to disassembly these products to realize a possibility of recycling.

On Providing Formal Manufacturability Information to Upstream Product Development Processes: Methodology and Case Study

2005 ◽  
Author(s):  
Eliab Z. Opiyo
Keyword(s):  
Product Development ◽  
Process Planning ◽  
Development Process ◽  
Product Development Process ◽  
Development Activity ◽  
Design And Manufacturing ◽  
Planning Procedure ◽  
Development Processes ◽  
Early Phases

Process planning is a key product development activity that links design and manufacturing, and is traditionally carried out based on the outcome of the design process. One of the consequences of conducting process planning after design is that the process planning (manufacturability) information needed in the execution of upstream activities is in most cases not available formally. Using informal manufacturability information in the early phases of the product development process can lead to e.g. untrustworthy feasibility study or unnecessary design iterations. As an attempt to solve this problem, a modular procedure for execution of process planning activities is proposed in this paper. It allows for the execution of some of the process planning activities to commence as soon as the details of the order and the requirements for the product are known. The goal is to ensure that formal manufacturability information is available in various stages of the product development process, including to those activities that take place prior to process planning. The new modular process planning procedure has been applied, and it has been found that the design iterations caused by lack of manufacturability information can be avoided. This paper first defines the problem and presents related works. It then introduces the modular process planning procedure, and presents an application case study.

scholarly journals Increasing the production capacity of copper drawing machine in the cable industry using SMED method: A case study in Indonesia

2019 ◽  
Vol 11 (3) ◽  
pp. 217
Author(s):  
Lilik Setyawan
Keyword(s):  
Production Process ◽  
Cycle Time ◽  
Production Capacity ◽  
Drawing Machine ◽  
Pareto Analysis ◽  
Main Research ◽  
Cable Industry ◽  
Research Problems ◽  
Production Output

Indonesian Government has electricity program of 35,000 Megawatt. To make this program successful, all cable companies begin to implement strategies to satisfy these needs. Increasing the production capacity is the main program implemented by cable companies in Indonesia. One of the cables companies has production output on copper drawing machine of 11 unit of bobbins per shift with the production process cycle time of 32.32 minutes per bobbin. To improve production capacity, improvements need to be performed to reduce the cycle time of the production process. This research was conducted by applying fishbone and Pareto analysis resulting in three main research problems. SMED methodology was implemented in this research by separating two activities, namely internal setup and external setup, then turning the internal setup to external setup in order to reduce the overall processing duration. From the three main research problems, it results in processing duration reduction from 32.32 minutes to 23.18 minutes or a reduction of 28.28 percent. This reduction can improve the production capacity from 11 unit of bobbins to 16 unit of bobbins per shift or 360 unit of bobbins monthly or increasing the production capacity of 45.45 percent. This SMED program is very suitable for similar companies in cabling field and having old machines so that they do not need to invest by purchasing a new machine.

scholarly journals A survey of virtual prototyping techniques for mechanical product development

2003 ◽  
Vol 217 (4) ◽  
pp. 513-530 ◽  
Author(s):  
F Zorriassatine ◽  
C Wykes ◽  
R Parkin ◽  
N Gindy
Keyword(s):  
Product Development ◽  
Manufacturing Industry ◽  
Virtual Prototyping ◽  
World Market ◽  
Product Development Process ◽  
Research Issues ◽  
Computer Based ◽  
The Difference ◽  
Medium Enterprises ◽  
Near Future

Repeated, efficient, and extensive use of prototypes is a vital activity that can make the difference between successful and unsuccessful entry of new products into the competitive world market. In this respect, physical prototyping can prove to be very lengthy and expensive, especially if modifications resulting from design reviews involve tool redesign. The availability and affordability of advanced computer technology has paved the way for increasing utilization of prototypes that are digital and created in computer-based environments, i.e. they are virtual as opposed to being physical. The technology for using virtual prototypes was pioneered and adopted initially by large automotive and aerospace industries. Small-to-medium enterprises (SMEs) in the manufacturing industry also need to take virtual prototyping (VP) technology more seriously in order to exploit the benefits. VP is becoming very advanced and may eventually dominate the product development process. However, physical prototypes will still be required for the near future, albeit less frequently. This paper presents a general survey of the available VP techniques and highlights some of the most important developments and research issues while providing sources for further reference. The purpose of the paper is to provide potential SME users with a broad picture of the field of VP and to identify issues and information relevant to the deployment and implementation of VP technology.

USE OF RAPID PROTOTYPING IN PRODUCT DEVELOPMENT: A Case Study for Tool Manufacturing for Aeronautical Use

2017 ◽  
Vol 8 (5) ◽  
pp. 1-17
Author(s):  
Aires Jorge Alberto Sandi ◽  
◽  
Giacaglia Giorgio Eugenio Oscare ◽  
Keyword(s):  
Product Development ◽  
Rapid Prototyping

Teaching Computer Based Historical Data Analysis

1994 ◽  
Vol 6 (1) ◽  
pp. 52-58 ◽  
Author(s):  
Charles Anderson ◽  
Robert J. Morris
Keyword(s):  
Data Analysis ◽  
Social History ◽  
Historical Data ◽  
Good Practice ◽  
Computer Assisted ◽  
Historical Data Analysis ◽  
University Of Edinburgh ◽  
Computer Based ◽  
The University

A case study ofa third year course in the Department of Economic and Social History in the University of Edinburgh isusedto considerandhighlightaspects of good practice in the teaching of computer-assisted historical data analysis.

scholarly journals Digital Storytelling in Cultural Heritage: Audience Engagement in the Interactive Documentary New Life

2021 ◽  
Vol 13 (3) ◽  
pp. 1193
Author(s):  
Anna Podara ◽  
Dimitrios Giomelakis ◽  
Constantinos Nicolaou ◽  
Maria Matsiola ◽  
Rigas Kotsakis
Keyword(s):  
Cultural Heritage ◽  
Full Range ◽  
Social Dimension ◽  
Data Driven ◽  
Specific Interest ◽  
Key Factors ◽  
Audience Engagement ◽  
Main Research ◽  
The Social

This paper casts light on cultural heritage storytelling in the context of interactive documentary, a hybrid media genre that employs a full range of multimedia tools to document reality, provide sustainability of the production and successful engagement of the audience. The main research hypotheses are enclosed in the statements: (a) the interactive documentary is considered a valuable tool for the sustainability of cultural heritage and (b) digital approaches to documentary storytelling can provide a sustainable form of viewing during the years. Using the Greek interactive documentary (i-doc) NEW LIFE (2013) as a case study, the users’ engagement is evaluated by analyzing items from a seven-year database of web metrics. Specifically, we explore the adopted ways of the interactive documentary users to engage with the storytelling, the depth to which they were involved along with the most popular sections/traffic sources and finally, the differences between the first launch period and latest years were investigated. We concluded that interactivity affordances of this genre enhance the social dimension of cultural, while the key factors for sustainability are mainly (a) constant promotion with transmedia approach; (b) data-driven evaluation and reform; and (c) a good story that gathers relevant niches, with specific interest to the story.

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