Asm Handbook: Volume 14A: Metalworking : Bulk Forming (ASM by S. L. Semiatin

By S. L. Semiatin

Quantity 14A is an necessary reference for production, fabrics, and layout engineers. It offers finished assurance and crucial technical details at the process-design relationships which are had to opt for and keep an eye on metalworking operations that produce shapes from forging, extrusion, drawing, and rolling operations. In-depth dialogue of forming apparatus, approaches, fabrics, and complicated modeling options make it a considerably new up-to-date ASM instruction manual.

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2. , forging envelope) play a critical role in the design of incremental-forging processes. Forging design, representing a key feature of incremental forging, is often highly specialized and proprietary in nature. Microforming is a technology generally defined as the production of parts or structures with at least two dimensions in the submillimeter Materials-Related Developments Recent materials-related developments include breakthroughs in the bulk forming of new materials, increased control of microstructure development using specialized thermomechanical processes, and the development of advanced tools for predicting microstructure and texture evolution.

Secondary processing of parts has been most often conducted via isothermal closed-die forging (Fig. 3a, b). Careful can design and understanding of temperature transients have also enabled the hot pack rolling of gamma titanium-aluminide sheet and foil products used in subsequent superplastic-forming operations (Fig. 3c). A key to the success of each of these processes has been the development of a detailed understanding of the pertinent phase equilibria/ phase transformations and the effects of microstructure, strain rate, and temperature on failure modes during processing.

Deformation processes, for example, come in a wide range of forms that can produce a variety of shapes and geometric details, but the amount of deformation that can be performed in each case may be limited by the excessive loads required or by the onset of fractures in the material. In the strictest sense, product designers do not “design for” any given production process; they design for functionality of the product. If, to meet a product’s functional requirements, the benefits of a specific process are useful or necessary, then the designer must specify the product geometry and materials within the limitations of that process.

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