What is the connection between the width of the bottom die groove and the thickness of the plate

Under normal circumstances, plate thickness t: 0~3mm plate, the width of the groove of the lower die of the bending machine V= plate thickness t*6, precision bending can be reduced to 4 times the plate thickness;

3~10mm plate, width of groove of lower die of bending machine V= plate thickness t*8;

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For plates over 10mm, width of groove of the lower die V= plate thickness *12. In general, this formula is applicable to precise bending,

For hanging bending and close bending, the ratio between the width of the groove and the thickness of the plate can be reduced. If board processing is aluminum, CNC bending machine mould V = thickness t * 6, slit width can meet the processing requirements, at the same time, it means when processing aluminum bending machine mould material and hardness is higher than ordinary steel mould requirements, notches R Angle is more than 1.5 mm, to make the workpiece is less damaged when bending, indentation is shallow.

If the processing method is hanging bending or close bending, bending machine mold groove can be reduced accordingly, this is because the bending method does not require the upper and lower die die forming. Reducing the width of the slot will make the Angle of the processed product more beautiful.

The width of the bending groove also determines the R Angle at the corner of the workpiece. If you want to make the processed product not form R Angle, it is better to planer the bending point before processing, so that the processed sheet metal parts folding Angle will be very standard, and no R Angle affect the appearance.


Post time: Jul-15-2019