Sheet metal processing has become a very important part of the industry. During the entire process of Wuxi sheet metal processing, the selection of molds for sheet metal processing is an important link. It requires from the type of mold selection, the station of the mold, etc. Careful consideration, then let us introduce the details of choosing a mold.

Factors to be considered during the selection of the mold include the form of cutting and whether it can reach the specified use standard. Planning and designing the machining process can reduce the time loss in the mold determination phase. The control mode of the production and processing lathe will also affect the determination of the mold. If an unreasonable mold is applied, the lathe will be easily damaged. Choosing a suitable processing mold can reduce and shorten the mold setting time and equipment running time, and can effectively improve the plate utilization efficiency, and achieve the improvement of production efficiency while reducing the corresponding processing costs.

First, choose the type of mold

The molds selected for different sheet metal processing processes are different. Usually, after the initial molding, it is necessary to continue to refine the mold. The mold that was originally selected is not too fine, reducing the time lost in the processing stage. The secondary processing requires higher precision, and the planning and design of the processing process has a serious impact on the stability of the final result. The overall process needs to be planned before the processing task is started.

Second, choose the mold clearance

The so-called die upper and lower die clearance refers to the actual difference between the die upper die diameter and the lower die diameter. For example, if the upper die diameter is 10mm and the lower die diameter is 10.3mm, the gap is 0.3mm. When choosing the upper and lower mold gaps, the actual material and thickness of the plate should be used. If an unreasonable gap is selected, it will cause more burrs in the processed sheet metal parts and greatly shorten the actual service life of the mold.

Third, choose the mold station

This aspect mainly refers to two aspects: one is the specific station selection during part processing; the other is the corresponding blanking force. When performing sheet metal processing operations, it is necessary to determine the station selected for the mold to reduce the time required for the operator to replace the mold. It is forbidden to place any punching molds around the mold, so as to avoid parts scrapping or mold damage. In addition, the blanking force required to process sheet metal parts needs to be finalized according to its cutting edge length, material thickness, and material. The formula is as follows: P = Atr / 1000 In this formula, P represents the blanking force and A represents Trimming length, t represents material thickness, and r represents material coefficient.

Sheet metal processing