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  2. Stamp mill - Wikipedia

    en.wikipedia.org/wiki/Stamp_mill

    A stamp mill (or stamp battery or stamping mill) is a type of mill machine that crushes material by pounding rather than grinding, either for further processing or for extraction of metallic ores. Breaking material down is a type of unit operation .

  3. 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 ...

  4. Stamping press - Wikipedia

    en.wikipedia.org/wiki/Stamping_press

    A stamping press is a metalworking machine tool used to shape or cut metal by deforming it with a die. A stamping press uses precision-made male and female dies to shape the final product. It is a modern-day counterpart to the hammer and anvil.

  5. Progressive stamping - Wikipedia

    en.wikipedia.org/wiki/Progressive_stamping

    Progressive stamping can also be produced on transfer presses. These are presses that transfer the components from one station to the next with the use of mechanical "fingers". [2] For mass production of stamped parts which do require complicated in-press operations, it is always advisable to use a progressive press. One of the advantages of ...

  6. Joshua Hendy Iron Works - Wikipedia

    en.wikipedia.org/wiki/Joshua_Hendy_Iron_Works

    Hendy stamp mill, mid 1800s. By the 1890s, the Joshua Hendy Iron Works was a leader in the mining industry, supplying equipment to mining companies globally, including ore carts, ore crushers, stamp and ball mills and other equipment.

  7. Postage meter - Wikipedia

    en.wikipedia.org/wiki/Postage_meter

    An early machine pictured on a 1932 envelope from Brazil addressed to Pitney Bowes. Since the issuance of adhesive stamps in 1840, postal officials have been concerned about security against stamp theft and how to process mail in a timely fashion. [1] One solution was a postage stamp affixing machine, introduced in the 1880s. [2] [3]

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