Forming of Bar, Tube, and Wire
This article discusses the most important factors required for cutoff methods. It explains the operations of machines used for the punching, shearing, notching, or coping of plates, bars, and structural sections. The article describes the effects of the blade angle and speed on the shear blade life. It reviews the design requirements and best practices for the production of blades. The article compares double-cut dies with single-cut dies used for shearing of structural and bar shapes. The shearing of specific forms, such as angle iron and flat stock, is also discussed. The article describes the advantages of hydraulic bar and structural shears. It concludes with information on the principle and construction of impact cutoff machines.
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