(1) The diameter of precision punching machine molds should be more than twice the thickness of the processed plate, and the diameter should be as large as possible. Generally, the diameter should be greater than 3mm, otherwise it is easy to break and affect the lifespan of the mold.
(2) The total height of the forming mold should not exceed 8MM, the length of commonly used louvers should not exceed 75MM, and the diameter of the protrusion should not exceed 65MM.
(3) The molds that are not commonly used in precision punching machines should undergo regular rust prevention work and oil coating.
(4) The clearance of the lower mold is determined based on the thickness of the processed plate. For example, the lower mold for processing 2MM plates cannot process 3MM plates or 1MM plates, otherwise it will exacerbate wear and even break the mold.
(5) The workstations near the forming station are not available because the height of the forming mold is much higher than that of the ordinary mold. It is best to place the forming process at the end and remove it after punching.
(6) Low speed must be used during molding.
(7) The cutting edge of the mold for precision punching thick plates does not allow sharp corners, so the sharp corners should be rounded transitions, otherwise they are prone to wear or collapse.
The amount and frequency of oil injection for precision punching machine molds are determined by the conditions of the processing materials. For materials without rust or scale, the mold should be filled with oil using light engine oil. For materials with rust and scale, rust will enter between the mold and the outer shell during processing, making it difficult for the convex mold to move freely. In this case, if oil is applied, the rust will be more easily adhered to. Therefore, when flushing this material, it is necessary to wipe the oil clean, decompose it once a month, wash it with gasoline, and reassemble it to achieve satisfactory processing.