Showing papers on "Production engineering published in 1989"

Manufacturing Engineering and Technology

Abstract: For courses in manufacturing processes at two- or four-year schools. An up-to-date text that provides a solid background in manufacturing processes. Manufacturing Engineering & Technology, 6/e, presents a mostly qualitative description of the science, technology, and practice of manufacturing. This includes detailed descriptions of manufacturing processes and the manufacturing enterprise that will help introduce students to important concepts. With a total of 120 examples and case studies, up-to-date and comprehensive coverage of all topics, and superior two-color graphics, this text provides a solid background for manufacturing students and serves as a valuable reference text for professionals. The Sixth Edition has been completely updated, and addresses issues essential to modern manufacturing, ranging from traditional topics such as casting, forming, machining, and joining, to advanced topics such as the fabrication of microelectronic devices and microelectromechanical systems (MEMS), and nanomaterials and nanomanufacturing.

Modern manufacturing process engineering

Abstract: Modern manufacturing process engineering , Modern manufacturing process engineering , مرکز فناوری اطلاعات و اطلاع رسانی کشاورزی

Method for preparing automotive assembly operations documents

Abstract: A method for preparing documents that enable execution of automotive assembly operations at a central production engineering location and electronically transmitting the documents to a remote user location is provided. The method involves the use of data terminals at both locations with a computer interposed therebetween to permit transmission of data and to provide a formatting technique which is easily understandable and usable.

Decision architectures for production planning in multi-stage multi-product manufacturing systems

Abstract: Recent trends in automated manufacturing call for hierarchical decision architectures for production planning, suitable for integration with part flow controls. Different design approaches are currently adopted for implementing production planning architectures, depending either on the objective of defining a centralized production plan for the whole manufacturing system (as in the case of MRP and OPT), or on the desire of coordinating local plans for the component work cells (as for JIT). The paper analyzes such approaches by use of a unifying mathematical formulation of the production plan optimization problem, to recognize the main features of the existing planning approaches, and compare their usefulness in different manufacturing processes.

A Manufacturing Scheduler's Perspective on Semiconductor Fabrication

Abstract: : In this paper, we describe the phenomena in semiconductor fabrication which are important for production scheduling. We focus our attention on collecting and understanding events, and describing related concepts, such as fabrication processes, operation sets, production machines, support machines, accessories, operation worker, support technicians, activities, objectives, etc. We do not suggest scheduling policies here; instead the goal is to characterize all the events that must be considered in developing such a policy.

Factory control architecture : a systems approach

Abstract: • A submitted manuscript is the author's version of the article upon submission and before peer-review. There can be important differences between the submitted version and the official published version of record. People interested in the research are advised to contact the author for the final version of the publication, or visit the DOI to the publisher's website. • The final author version and the galley proof are versions of the publication after peer review. • The final published version features the final layout of the paper including the volume, issue and page numbers.

Defense Manufacturing Management Guide for Program Managers, Third Edition

Abstract: : This guide was designed to provide the user with an understanding of, and a basic working familiarity with, the newest and most effective manufacturing management methods used in defense systems acquisition programs today. It is intended that the guide be particularly useful in preparing for and executing the production phase of a defense system program. The guide includes a discussion of DOD policies, directives, methodologies, and practices - along with a list of acronyms and a glossary of terms - applicable to the management of the manufacturing efforts of defense contractors. Keywords: Manufacturing management; Industrial base; Product development; Manufacturing strategy; Total quality management; Manufacturing planning; Manufacturing scheduling; Quality assurance; Producibility; Manufacturing engineering; Manufacturing technology; Cost estimating; Contracting issues; Manufacturing controls; Program management; Manufacturing automation; Robotics; Computer aided manufacturing; Configuration control; Computer integrated manufacturing; Critical path method; Defense manufacturing board; Economic order quantity; IMIP; JIT; MRP; PEP; ROI; VE; WBS; Factory of the future.

Correlation between vibration and burrs

Abstract: I. INTRODUCTION How to control and eliminate some vibration phenomena in nature and production engineering has been puzzling the scientific and technological circles. However, the physical phenomena should be evaluated comprehensively. It is a new academic thought using vibration as a favourable factor to improve the conventional current situation.

Exploitable UK research for manufacturing industry

Abstract: Management of manufacturing CIM control strategies quality assurance and quality control systems process modelling expert systems in manufacturing production planning robotic and other automated assembly systems manufacturing simulation computer-aided production control systems artificial intelligence in manufacturing design of integrated manufacturing systems computer-aided information systems

Feature extraction from solid model for manufacturability assessment

Abstract: Assessment of manufacturability of a design with minimum human intervention is in increasing demand. It is, however, very difficult to investigate manufacturability problems with analytical tools in most of the manufacturing processes. In a real manufacturing situation, manufacturability problems are considered only by designers based on the standard design practice and their past experience. In general, manufacturing knowledge is hardly reflected at initial design stage. An expert system equipped with knowledge of manufacturability can be usefully applied to solve these problems. An expert system that can evaluate designs for their manufacturability must have knowledge of manufacturing requirements as they relate to the design of the part to be produced. However, this type of knowledge is generally in the form of relationships or rules that refer to geometric features of designs. Therefore, an appropriate form of input data for the expert system should be generated from the part design data base. This article describes a method to extract feature information from the data base of a 3D surface boundary representation for the injection molded part design. The feature information is then passed into a knowledge-based system to perform manufacturability assessment. University Libraries Carnegie Mellon University Pittsburgh, Pennsylvania 15213 Table of

Readout Producibility For Z-Technology

Abstract: Production rates of low-noise, cryogenic readout devices have been demonstrated. These devices are being produced under a MIL-Q-9858A quality system and are processed per the requirements of MIL-STD-883C. Performance, testability, reliability and producibility of the design have been equally considered throughout the development cycle. All required processes, test methodologies, and quality assurance procedures have been implemented to support production requirements. 1. INTRODUCTION The production cycle discussed is for a 64-channel Complementary Metal Oxide Semiconductor (CMOS) chopper stabilized circuit with a 64:1 multiplexer output and on-chip clock and bias generation.High yields have been obtained by utilizing established silicon foundry design rules and analyzing device sensitivity to process parameters during the design process. Commercial silicon foundries are used in the production process to insure that disciplined design rules, controlled quality, and guaranteed process parameters are followed during wafer fabrication. Wafer handling techniques for subsequent processing of 5 mil thick silicon wafers in a production environment have been developed and implemented.Device testing of cryogenic integrated circuits has long been viewed as a major obstacle to achieving production rate deliveries. Methodologies have been established to maintain low cost and high test throughput. As part of lot acceptance, accelerated life testing is performed on all processed lots prior to delivery.

AI is vital part of production computing

Abstract: Responding to the expensive expansion of technology that has greatly increased the complexity of engineering analysis, a state-of-the-art, production-engineering computing environment is in various stages of development at Arco Oil and Gas Co. Symbolic-processing or artificial-intelligence technologies are a vital component of the production engineering computing environment. Symbolic processing is based on discrete mathematics, whereas, numerical analysis is based on calculus. Advances in computer technology have made discrete mathematics as indispensable as calculus to science and technology.

Manufacturing Technology For Z-Architecture Focal Plane Assemblies

Abstract: A plan to manufacture Z-Technology focal planes was validated by an approach that extends learning curve data from a module pilot line to intercept the planned rate-over-time of a modeled production factory. The pilot factory data are based on 87 Lot IV submodules produced at Grumman's Irvine, California facility. Detailed capital, material and labor costs were tracked for each operation in the manufacturing process. These data were analyzed with equipment manufacturer's data and program requirements to compute the cost of manufacturing for the model factory. The model can be tailored to fit various scenarios of focal plane configuration, resource availability and schedule.

University Programs in Computer-Aided Engineering, Design, and Manufacturing

Abstract: The University Programs in Computer-Aided Engineering, Design, and Manufacturing (UPCAEDM) annual conferences provide for the presentation and exchange of ideas related to current developments in the use of computers in multi-disciplinary engineering education and research environments. Organized around the theme Networking in Engineering Colleges, the present conference deals with new trends in computer-aided engineering applications of computer-aided design, manufacturing automation, and networking. UPCAEDM provides a forum for leaders from education, industry, and government to focus on issues related to the automation of engineering practice.

A principle of construction of an integrated machine manufacturing system

Abstract: The problems arising in the automation of multiproduct small batch production in mechanical engineering due to necessity to ensure its high flexibility are indicated. It is shown that the automation level of such a production can be effectively increased by the organization of a group production and the part orientation of equipment. In so doing it is useful to group parts on the basis of their standard images and enrichment elements. The use of standard image concept promotes the integration of design and manufacturing and creates the prerequisites for the automation of design. The planning of group production organized on the basis of standard images and enrichment elements realizes by regrouping the “parts-setting-ups” matrix. The method of matrix regrouping facilitating the group production planning is proposed. The described principles of organizing the computer-aided design and manufacturing on the basis of standard images and enrichment elements have been used in constructing the integrated system KAPRI intended for pilot production with a variable range of parts.

Engineering management of large scale systems

Abstract: The organization of high technology and engineering problem solving, has given rise to an emerging concept. Reasoning principles for integrating traditional engineering problem solving with system theory, management sciences, behavioral decision theory, and planning and design approaches can be incorporated into a methodological approach to solving problems with a long range perspective. Long range planning has a great potential to improve productivity by using a systematic and organized approach. Thus, efficiency and cost effectiveness are the driving forces in promoting the organization of engineering problems. Aspects of systems engineering that provide an understanding of management of large scale systems are broadly covered here. Due to the focus and application of research, other significant factors (e.g., human behavior, decision making, etc.) are not emphasized but are considered.