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• Design and Fabrication of Sectional Screw Flight Bending and Forming Machines

  Nguyen Huu Huong, Tong Ngoc Tuan, Nguyen Thi Thuy Hang

  Received: 21-02-2020 / Accepted: 29-06-2021

   Abstract PDF (VIETNAMESE)

  The goal of this study was to design and fabricate sectional screw flight bending and forming machines for manufacturing screw flights applied in real production. This machine was designed to be suitable for small production scale. The principle of the machine was calculated and chosen based on theoretical research and the structure of current mechanics. Autodesk Inventor software was utilized for designing mechanical parts and components and assembling the slicer. Based on the drawing, this machine was fabricated using available materials. The operating process of this machine shows that the machine can form screw flights made from the metal plates with a maximum thickness of 3 mm. In addition, the machine could form a metal plate draft approximately 150 mm in width. Some experiments indicate that this machine worked relatively well.

• Design and Manufacture Some Main Details of Metal Bending Machine

  Nguyen Thi Thu Trang, Nguyen Ngoc Cuong, Nguyen Huu Huong

  Received: 10-12-2019 / Accepted: 11-02-2019

   Abstract PDF (VIETNAMESE)

  Metal bending machine is a research result based on existing equipment and the use of engineering design software combined withtheexperimental works. Fabrication of this machine aimsto process many different types of parts from sheet metal billet by folding bending method. It can easily change of mold size and shapeaccording to the detailed machining requirements. The principle of deformation process is to use the punch and die to bend the blank of the sheet to create angles for the part. Bending machines are suitable for small production facilities or for practical training for students in mechanical technical training institutions. The technological parameters of the machine are calculated and selected based on the scope of the research and the purpose of processing detailed deformation.