Validation of High Strength Cast Al-Zn-Mg-Cu Aluminum for Use in Manufacturing Process Design

Author(s):  
M.D. David ◽  
R.D. Foley ◽  
J.A. Griffin ◽  
C. Monroe
2013 ◽  
Vol 397-400 ◽  
pp. 57-61
Author(s):  
Dong Jie Zhong

Green manufacturing process is a key segment to guarantee green degree of products manufacturing course. In this paper, a kind of design system is presented by analyzing the function demand of the design system for green manufacturing process and then the modules which constituent the design system are analyzed in detail. Moreover, according to the design principle and the estimate indexes of green manufacturing process, the operation flow of the design system is introduced.


Author(s):  
Jesse D. Peplinski ◽  
Janet K. Allen ◽  
Farrokh Mistree

Abstract How can the manufacturability of different product design alternatives be evaluated efficiently during the early stages of concept exploration? The benefits of such integrated product and manufacturing process design are widely recognized and include faster time to market, reduced development costs and production costs, and increased product quality. To reap these benefits fully, however, one must examine product/process trade-offs and cost/schedule/performance trade-offs in the early stages of design. Evaluating production cost and lead time requires detailed simulation or other analysis packages which 1) would be computationally expensive to run for every alternative, and 2) require detailed information that may or may not be available in these early design stages. Our approach is to generate response surfaces that serve as approximations to the analyses packages and use these approximations to identify robust regions of the design space for further exploration. In this paper we present a method for robust product and process exploration and illustrate this method using a simplified example of a machining center processing a single component. We close by discussing the implications of this work for manufacturing outsourcing, designing robust supplier chains, and ultimately designing the manufacturing enterprise itself.


Author(s):  
George Chryssolouris ◽  
Dimitris Mavrikios ◽  
Dimitris Fragos ◽  
Vassiliki Karabatsou

2021 ◽  
Vol 1016 ◽  
pp. 732-737
Author(s):  
Junya Kobayashi ◽  
Hiroto Sawayama ◽  
Naoya Kakefuda ◽  
Goroh Itoh ◽  
Shigeru Kuraoto ◽  
...  

Various high strength steel sheets for weight reduction and safety improvement of vehicles have been developed. TRIP-aided steel with transformation induced plasticity of the retained austenite has high strength and ductility. Conventional TRIP-aided steels are subjected to austempering process after austenitizing. Generally, elongation and formability of TRIP-aided steel are improved by finely dispersed retained austenite in BCC phase matrix. The finely dispersed retained austenite and grain refinement of TRIP-aided steel can be achieved by hot rolling with heat treatment. Therefore, the improvement of mechanical properties of TRIP-aided steel is expected from the manufacturing process with hot rolling and then isothermal transformation process. In this study, thermomechanical heat treatment is performed by combining hot rolling and isothermal holding as the manufacturing process of TRIP-aided steel sheets. The complex phase matrix is obtained by hot rolling and then isothermal holding. Although the hardness of the hot rolled and isothermal held TRIP-aided steel is decreased, the volume fraction of retained austenite is increased.


2018 ◽  
Vol 26 ◽  
pp. 1388-1397 ◽  
Author(s):  
Brian K. Paul ◽  
Patrick McNeff

Author(s):  
Douglas V. Gallagher ◽  
Ronald A. L. Rorrer

At the University Colorado Denver, a manufacturing process design course was specifically created to raise the level of the as constructed senior design projects in the department. The manufacturing process design course creates a feed forward loop into the senior design course, while the senior design course generates a feedback loop into the process design course. Every student and student project has the opportunity to utilize CNC mills and lathes where appropriate. Specific emphasis is placed upon the interfaces from solid models to CAM models and subsequently the interface from CAM models to the machine tool. Often the construction of many senior design projects approaches the level of blacksmithing due to time constraints and lack of fabrication background. Obviously, most engineering students have neither the time nor the ability to become expert fabricators. However, the wide incorporation of CNC machining in the program allows, an opportunity to not only raise the quality of their prototypes, but also to immerse in the hands on experience of living with the ramifications of their own design decisions in manufacturing. Additionally, some of the art of fabrication is turned into the science of fabrication. The focus of this paper will be primarily on examining the effect of formal incorporation of the manufacturing process in the capstone design course.


Work ◽  
2020 ◽  
pp. 1-10
Author(s):  
Raji Rafiu King ◽  
Luo Qing ◽  
Liu Haijin

BACKGROUND: Before the emergence of ready-to-wear (RTW) garments, production of apparels relied on ergonomics considerations through body measurements (anthropometry) of individual users. This is an indication of the inherent nature of ergonomics in apparel fabrication; however active mention of ergonomics related to fashion engineering and design before then was lacking. OBJECTIVE: This article seeks to emphasize the need for an organized framework of knowledge for ergonomics suited to fashion engineering and design education and research. METHODS: Relevant literature have been reviewed and three main knowledge components of ergonomics relevant to fashion engineering and design have been identified and classified based on standard classes of areas within the general field of ergonomics. RESULTS: Areas of ergonomics applications in fashion engineering and design under the headings of consumer product design, i.e. apparel design, workspace or office design, manufacturing process design and man-machine system, have been discussed. CONCLUSION: Comprehensive ergonomics education related to fashion engineering and design consist of the three main knowledge components: (1) the five aspects of ergonomics, (2) anthropometry and biomechanics and (3) the three domains of ergonomics.


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