Banner

行业知识

Reasons why the punching size of hardware electronic stamping parts does not meet the requirements

In the hardwareElectronic stamping PartsIn the daily operation, will encounter the punching standard is large or small (perhaps across the specification begging) and with the convex mold standard difference between the scene, in addition to considering the forming convex, die planning standards, processing accuracy and punching open space and other elements, but also from the following aspects to manage.

1, punching occurred when the metal stamping parts of the bristles formed. Need to study the cutting edge, and pay attention to see if the punching open space is reasonable. Formed by the instability of the stamping parts during bending. The first is for U-shaped and V-shaped bends. The treatment of this problem, the guide position before bending of the stamping parts, the guide position in the bending process, and the pressing data during the bending process to prevent the stamping parts from slipping during bending is the key to solve the problem. Formed by the bristles of the punching parts that occur during punching. Need to study the cutting edge, and pay attention to see if the punching open space is reasonable.

2. When the cutting edge is worn, the tensile stress of the data increases, and the tendency of the stamping parts to flip and misrepresent increases. When the flip occurs, the punching standard will become smaller. The pressure on the data, so that the data plastic deformation, will lead to greater punching standards. And when the pressure is reduced, the punching standard will become smaller.

3, the shape of the end of the convex die edge. If the end of the slope or arc, due to the relief of punching force, punching parts are prone to flip, slander, therefore, the punching standard will become larger. When the end of the convex die is planar (no bevel or arc), the punching standard will be relatively small. In the specific operation practice, should solve the specific problem specific discussion, then find out the solution to the problem countermeasure.

Planning principles

⑴ planned stamping parts need to be satisfied with product application and skill performance, and can be easy to assemble and repair.

⑵ planned stamping parts need to be conducive to the utilization of progressive metal data, reduce the types and standards of information, as far as possible to reduce the consumption of data. To the extent permitted, the use of inexpensive information, as far as possible to make parts free of waste and less scrap blanking.

⑶ planned stamping parts have the necessary shape is simple, reasonable structure, in order to simplify the mold structure, simplify the number of processes, that is, with a small, abbreviated stamping process to complete the entire part of the processing, cut and other methods of processing, and conducive to stamping operations, easy to organize the organization to achieve mechanization and automated production, in order to improve labor productivity.

⑷ planned stamping parts, in the case of ensuring normal use, as far as possible to make dimensional accuracy grade and surface roughness grade requirements lower, and conducive to product exchange, reduce waste, ensure product quality stability.

The stamping parts planned by ⑸ should be beneficial to the use of existing equipment, process equipment and process flow as far as possible to process them, and is conducive to the extension of the service life of the die.