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How to ensure the precision of aluminum alloy die casting

How to ensure the precision of aluminum alloy die casting

kerry 2021-08-06 18:02:26

In the process of die casting die processing, in addition to strictly in accordance with the die casting die drawing processing, to ensure the cavity specification, the following points are the key to ensure the precision of die casting die processing: aluminum alloy die casting 

1. Processing of flow groove: In the past, the processing quality of flow groove of oil seal die casting mold has not been paid sufficient attention. The flow groove is often processed to the distance of the cavity or the specification is not easy to control, which makes it difficult to trim the product and the product is not beautiful.  Two oil seal open die casting mould to solve these problems has been made to improve, the flow of the triangle glue groove end specifications and product diameter specification (zero to zero), using the split of the upper and lower die here constitute a sharp blade, with oil seal mould, residual flash was cut down, the trimming process is simplified, and improves the appearance of the product quality.



2. Collaborative processing of the upper die and the upper die core 1: the cooperation of the upper die and the upper die core 1 is taper cooperation. The previous method of research and matching is selected, and the touch rate is required to reach more than 80%.  This traditional processing method is not only difficult, but also consumes a lot of man-hours. It is still difficult to reach the goal of no flying edge, so there is no flying edge of the product here.  And the die casting mold production process is improved. 

3, on the mold core 1 and 2 on the mold core pressure: on the mold core 1 and 2 on the mold core pressure is to ensure the oil seal lip specification and accuracy of the key.  The flying edge of the secondary lip of the die casting mold of the three open oil seal has a great influence on the appearance quality of the secondary lip. 

4. Connection between each cavity die casting mold: the connection between each single cavity die casting mold and the joint plate must have a certain amount of floating, to ensure that the die casting mold opening and closing sensitive, accurate alignment.  Generally, the gap between single mode and coupling plate is controlled at 0.50-1.0 RNM.