Design and preparation of shaft forgings of giant rotating machinery The design and preparation of shaft forgings of giant rotating machinery is a complex and important engineering task. The following is the general design and preparation process: 1. Design stage: – Determine the design requirements: understand the working conditions of rotating machinery, load requirements, service life, etc., to determine the design requirements. – Determine material selection: Select suitable materials, usually high strength, high toughness alloy steel or stainless steel. Perform mechanical calculations: Through stress analysis and strength calculation, determine the size and shape of the shaft to meet the design requirements. – Perfect the detail design: consider the connection mode of the shaft, surface lubrication, heat treatment and other factors, carry out the detail design. 2. Preparation stage: – Material preparation: Select the materials that meet the design requirements, and conduct chemical composition analysis and physical property testing of the materials. – Heat treatment: According to the design requirements, the use of appropriate heat treatment methods, such as quenching, tempering, etc., in order to obtain the appropriate material structure and properties. – Forging: The forging process is used to process the material into the initial shape of the shaft, usually using large forging equipment for precise control and forming. – Finishing: finishing the shaft after forging, including turning, milling, grinding and other processes to ensure the accuracy and surface quality of the shaft. – Test and test: test and test the physical properties, geometric size and surface quality of the prepared shaft to ensure that the shaft meets the design requirements. The design and preparation of giant rotating machinery shaft forgings requires a wealth of professional knowledge and experience, but also the rational use of modern engineering technology and equipment. In actual operation, it is also necessary to adjust and refine according to the specific situation to ensure the quality and performance of the final product.
