Automated manufacturability evaluation system for sheet metal components in mass production

2005 ◽  
Vol 43 (18) ◽  
pp. 3889-3913 ◽  
Author(s):  
K. V. Ramana * ◽  
P. V. M. Rao
Keyword(s):  
Sheet Metal ◽  
Mass Production ◽  
Evaluation System ◽  
Manufacturability Evaluation

Design for Manufacture and Integrated Manufacturability Evaluation System

2012 ◽  
Vol 476-478 ◽  
pp. 2567-2570
Author(s):  
Hong Jun Liu ◽  
Xiao Yan Tong ◽  
Sheng Li Lv ◽  
Qing Ming Fan
Keyword(s):  
Evaluation System ◽  
Design For Manufacturability ◽  
Global Competition ◽  
Design For Manufacture ◽  
Feedback Information ◽  
The World ◽  
Design And Manufacturing ◽  
Engineering Effort ◽  
Survival And Growth ◽  
Manufacturability Evaluation

In the light of growing global competition, organizations around the world today are constantly under pressure to produce high-quality products at an economical price. The integration of design and manufacturing activities into one common engineering effort has been recognized as a key strategy for survival and growth. Design for manufacturability (DFM) requires product designers to simultaneously consider the manufacturing issues of a product along with the geometrical and design aspects. In this paper, part manufacturability was analyzed in detail. An evaluation system of DFM was proposed. Product design can be guided according to feedback information by evaluating the part manufacturability.

Progressive and Compound Forming for Producing Plunger-Typed Microparts by Using Sheet Metal

2020 ◽  
Vol 8 (2) ◽  
Author(s):  
Jun-Yuan Zheng ◽  
Ming-Wang Fu
Keyword(s):  
Grain Size ◽  
Size Effect ◽  
Sheet Metal ◽  
Mass Production ◽  
Grain Size Effect ◽  
Sheet Metals ◽  
Forming Process ◽  
Deformation Behaviors ◽  
Progressive Forming ◽  
Insight Into

Abstract The plunger part in temporary electronic connectors is traditionally fabricated by micromachining. Progressive forming of microparts by directly using sheet metals is developed and proven to be an efficient microforming process to overcome some intrinsic drawback in realization of mass production of microparts. By employing this unique micromanufacturing process, an efficient approach with progressive microforming is developed to fabricate plunger-shaped microparts. In this endeavor, a progressive forming system for making microplungers using extrusion and blanking operations is developed, and the grain size effect affected deformation behaviors and of surface qualities of the microformed parts are studied. The knowledge for fabrication of plunger-shaped microparts via progressive microforming is developed, and the in-depth understanding and insight into the deformation behaviors and tailoring the product quality and properties will facilitate the design and development of the forming process by using this unique microforming approach.

Evaluation of Sheet Metal Leveling Based on Elimination of Coilset Residual Stress

2016 ◽  
Author(s):  
Sung-Yu Tsai ◽  
Brian Chen ◽  
Jen-Yuan (James) Chang
Keyword(s):  
Residual Stress ◽  
Sheet Metal ◽  
Mass Production ◽  
Metal Forming ◽  
Manufacturing Process ◽  
Laser Cutting ◽  
Steel Production ◽  
Forming Process ◽  
Metal Forming Process ◽  
Modern Manufacturing

Flexible media such as tape, web or sheet metal are commonly used in the mass production manufacturing. In the modern manufacturing process, about one third of the steel production is converted to sheet metal [1]. Sheet metal is normally winded and stored into coil form which can be easily tranported. However, when it is unwinded for metal forming process such as press stamping, laser cutting or any other forming process, sheet metal will have coilset residual stress which can cause defects from the forming process. The coilset residual stress is caused by the way the sheet metal is stored and packaged [2]. Therefore, in order to eliminate such residual stress, leveing process is carried out to eliminate common coilset residual stress.

A Fuzzy Set AHP-Based DFM Tool under Concurrent Engineering Environment

2007 ◽  
Vol 10-12 ◽  
pp. 145-149 ◽  
Author(s):  
H.G. Liu ◽  
Rong Mo ◽  
Qing Ming Fan ◽  
Zhi Yong Chang ◽  
Y. Zhao
Keyword(s):  
Fuzzy Set ◽  
Concurrent Engineering ◽  
Evaluation System ◽  
Smooth Transition ◽  
Analytic Hierarchy ◽  
Design And Manufacturing ◽  
Evaluation Algorithm ◽  
Engineering Environment ◽  
Engineering Effort ◽  
Manufacturability Evaluation

In the light of growing global competition, organizations around the world today are constantly under pressure to produce high-quality products at an economical price. The integration of design and manufacturing activities into one common engineering effort has been recognized as a key strategy for survival and growth. Design for manufacturability (DFM) is an approach to design that fosters the simultaneous involvement of product design and process design. The implementation of the DFM approach requires the collaboration of both the design and manufacturing functions within an organization. At present, For some reasons DFM approach is ineffectively including lack of interdisciplinary expertise of designers; inflexibility in organizational structure, which hinders interaction between design and manufacturing functions. Design for manufacture is the practice of designing products with manufacturing in mind. Early consideration of manufacturing issues can shorten product development cycle time, minimi overall development cost and ensure a smooth transition into production. In this paper, part manufacturability under Concurrent Engineering (CE) environment was analyzed in detail. An evaluation system of DFM was proposed according to CE ideas. A fuzzy set-based manufacturability evaluation algorithm is formulated to generate relative manufacturability indices to provide product designers with a better understanding of the relative ease or difficulty of machining the features in their designs. An analytic hierarchy process (AHP) method is introduced to assign weighting factors to features to reflect their functional importance. Results from the case studies show the method available and practicable.

Automated Manufacturability Evaluation of Sheet Metal Components: A Review

2002 ◽  
Author(s):  
K. V. Ramana ◽  
P. V. M. Rao
Keyword(s):  
Sheet Metal ◽  
Design Stage ◽  
Future Research ◽  
Evaluation Systems ◽  
Metal Parts ◽  
Sheet Metal Parts ◽  
Resource Information ◽  
Information Models ◽  
Design Cycle ◽  
Manufacturability Evaluation

Accounting for manufacturability considerations at the product design stage is not only important but earlier they are considered in the design cycle, better it is. When computers are used extensively for design and manufacturing, automated manufacturability evaluation is a powerful option. This paper presents a review on automated manufacturability evaluation of sheet metal parts. While a large number of technical papers including reviews have been published on the general subject of Design For Manufactuarability (DFM), there is no paper in the literature that provides a review of automated manufacturability evaluation of sheet metal parts. In this work existing automated manufacturability evaluation systems for sheet metal parts are reviewed. The product, process and resource information models together with integration issues for automated manufacturability evaluation are discussed. Some of the future research challenges in this area are presented at the end.

A Complex Measuring and Evaluation System for Determination of Forming Limit Diagrams

2008 ◽  
Vol 589 ◽  
pp. 233-238 ◽  
Author(s):  
Péter Kovács ◽  
Miklós Tisza
Keyword(s):  
Numerical Simulations ◽  
Sheet Metal ◽  
Sheet Metal Forming ◽  
Metal Forming ◽  
Evaluation System ◽  
Measuring System ◽  
Forming Limit ◽  
Forming Limit Curves ◽  
Complex Measuring

Forming limit curves are very important for the prediction of failure during sheet metal forming both in practical forming operations and particularly in numerical simulations. The reliability of numerical simulations in sheet metal forming processes is strongly influenced by the reliability of forming limit curves. Therefore, both the theoretical aspects and the experimental determination of the forming limit curves are challenging problems for scientific researchers and industrial practitioners as well. There are various experimental techniques and mathematical models used to determine the forming limit curves. In spite of the standardization efforts made recently by several institutions world wide, there are still significant differences in determining the forming limit curves. Recently, a new, complex measuring system capable for the automatic determination of FLCs was installed at the Department of Manufacturing Engineering. In this paper, first a short overview will be given on the theoretical background of FLCs, then the application of the complex measuring system will be shown.

Knowledge-Based Manufacturability Evaluation System for Shipbuilding

2012 ◽  
Vol 152-154 ◽  
pp. 1578-1583
Author(s):  
Jin Li ◽  
Hong Yi
Keyword(s):  
Product Design ◽  
Concurrent Engineering ◽  
Evaluation System ◽  
Concurrent Design ◽  
Knowledge Based ◽  
Key Technologies ◽  
Manufacturability Evaluation

Concurrent design requires that the following activities of manufacturing and assembly should be considered during the stage of product design. Ship manufacturability evaluation is one of the most important works in concurrent engineering researches. In this paper, the characteristic of shipbuilding is analyzed firstly, and the architecture of knowledge-based manufacturability evaluation system for ship product is presented, and the key technologies to realize the said system are researched.

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