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  2. Types of press tools - Wikipedia

    en.wikipedia.org/wiki/Types_of_press_tools

    When cups and shells are drawn from flat sheet metal, the edge is left wavy and irregular, due to uneven flow of metal. Shown is flanged shell, as well as the trimmed ring removed from around the edge. While a small amount of material is removed from the side of a component in trimming tool. [2] Trimming tool

  3. Thermoforming - Wikipedia

    en.wikipedia.org/wiki/Thermoforming

    A sheet of hot plastic will be placed on top and the bed sealed, pulling the plastic down over the mold. In the most common method of high-volume, continuous thermoforming of thin-gauge products, plastic sheet is fed from a roll or from an extruder into a set of indexing chains that incorporate pins, or spikes, that pierce the sheet and ...

  4. Hemming and seaming - Wikipedia

    en.wikipedia.org/wiki/Hemming_and_seaming

    Hemming and seaming are two similar metalworking processes in which a sheet metal edge is rolled over onto itself. Hemming is the process in which the edge is rolled flush to itself, while a seam joins the edges of two materials. [1] Hems are commonly used to reinforce an edge, hide burrs and rough edges, and improve appearance. [1]

  5. Die (manufacturing) - Wikipedia

    en.wikipedia.org/wiki/Die_(manufacturing)

    Steel-rule die, also known as cookie cutter dies, are used for cutting sheet metal and softer materials, such as plastics, wood, cork, felt, fabrics, and paperboard. The cutting surface of the die is the edge of hardened steel strips, known as steel rule. These steel rules are usually located using saw or laser-cut grooves in plywood.

  6. Stamping (metalworking) - Wikipedia

    en.wikipedia.org/wiki/Stamping_(metalworking)

    Stamping (also known as pressing) is the process of placing flat sheet metal in either blank or coil form into a stamping press where a tool and die surface forms the metal into a net shape. Stamping includes a variety of sheet-metal forming manufacturing processes, such as punching using a machine press or stamping press , blanking, embossing ...

  7. Grommet - Wikipedia

    en.wikipedia.org/wiki/Grommet

    A grommet is a ring or edge strip inserted into a hole through thin material, typically a sheet of textile fabric, sheet metal or composite of carbon fiber, wood or honeycomb. Grommets are generally flared or collared on each side to keep them in place, and are often made of metal, plastic, or rubber. They may be used to prevent tearing or ...