Showing papers by "Taylan Altan published in 1983"

Metal Forming : Fundamentals and Applications

Abstract: Briefly reviews the basic principles of metal forming but major emphasis is on the latest developments in the design of metal-forming operations and tooling. Discusses the position of metal forming in manufacturing and considers a metal-forming process as a system consisting of several interacting variables. Includes an overall review and classification of all metal-forming processes. The fundamentals of plastic deformation - metal flow, flow stress of metals and yield criteria - are discussed, as are significant practical variables of metal- forming processes such as friction, temperatures and forming machines and their characteristics. Examines approximate methods of analyzing simple forming operations, then looks at massive forming processes such as closed-die forging, hot extrusion, cold forging/ extrusion, rolling and drawing (discussion includes the prediction of stresses and load in each process and applications of computer-aided techniques). Recent developments in metal-forming technology, including CAD/CAM for die design and manufacture, are discussed, and a review of the latest trends in metal flow analysis and simulations.

Feasibility of Using a Large Press (80,000 - 200,000 Ton) for Manufacturing Future Components on Army Systems

Abstract: : This report summarizes the findings of a study on the potential use of a large press, larger than 59kt, for manufacturing components of the present and future Army Systems. Specifically, the report covers: The technical background on and present status of large press forging technology; The summary and highlights of visits made throughout this study; Other contacts and information sources utilized in the study; Example parts that can be considered for forming/forging in large presses; and Potential use of flexible tooling to form armor plate.