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2. Shearing (manufacturing) - Wikipedia

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

   Shearing, also known as die cutting, [1] is a process that cuts stock without the formation of chips or the use of burning or melting. Strictly speaking, if the cutting blades are straight the process is called shearing; if the cutting blades are curved then they are shearing-type operations. [2]

3. Shear (sheet metal) - Wikipedia

   en.wikipedia.org/wiki/Shear_(sheet_metal)

   An alligator shear, historically known as a lever shear and sometimes as a crocodile shear, is a metal-cutting shear with a hinged jaw, powered by a flywheel or hydraulic cylinder. Alligator shears are generally set up as stand-alone shears; however, there are types for excavators. The jaw size can range from 4 to 36 in (100 to 910 mm) long.

4. Blanking and piercing - Wikipedia

   en.wikipedia.org/wiki/Blanking_and_piercing

   This allows for complex shapes to be formed in sheet metal up to 6 mm (0.25 in) thick using simple tools. [4] that is essentially a small punch and die that reciprocates quickly; around 300–900 times per minute. Punches are available in various shape and sizes; oblong and rectangular punches are common because they minimize waste and allow ...

5. Types of press tools - Wikipedia

   en.wikipedia.org/wiki/Types_of_press_tools

   Blanking is the operation of cutting flat shapes from sheet metal. The outer area of metal remaining after a blanking operation is generally discarded as waste. Size of blank or product is the size of the die & clearance is given on punch. It is a metal cutting operation. In blanking, metal obtained after cutting is not a scrap if it is usable.

6. Shear forming - Wikipedia

   en.wikipedia.org/wiki/Shear_forming

   Fig. 2. Shear forming schematics. Figure 2 shows the schematics of a shear forming process. 1. A sheet metal blank is placed between the mandrel and the chuck of the spinning machine. The mandrel has the interior shape of the desired final component. 2. A roller makes the sheet metal wrap the mandrel so that it takes its shape.

7. Roll slitting - Wikipedia

   en.wikipedia.org/wiki/Roll_slitting

   For harder materials, such as sheet metal, blades cannot be used. Instead, a modified form of shearing is used. Two cylindrical rolls with matching ribs and grooves are used to cut a large roll into multiple narrower rolls. This continuous production process is economical yet precise; usually more precise than most other cutting processes.