How to choose the upper and lower molds for sheet metal bending
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Ordinary bending usually use V-shaped groove, 3mm below the thickness of the sheet, V width for the material thickness of 5 to 6 times, 3mm above the sheet, V width for the material thickness of 8 to 10 times.
Worker R no special requirements, the mold can be used commonly used R0.2, 0.5, 0.6 and so on.
Usually with straight sword, small machete, big scimitar and so on.
The upper mold does not interfere with the workpiece, and the compressive strength meets the requirements.
