What does a metal stamping workshop need?

The metal stamping parts processed in the metal stamping workshop are an essential part of automobile production. In the four major processes of automobile production, the stamping process is the first, so the production of the back body, painting and final assembly three process workshops are directly affected by the stamping process workshop. But stamping workshops and other process workshops are different. Stamping workshops have the characteristics of high technical level requirements, large process complexity coefficient, large investment scale, production equipment, long manufacturing cycle and so on. Some of the characteristics of precision metal stamping companies are:

1. Production line layout of stamping workshop

The stamping workshop arranges the corresponding production line according to the production capacity of the whole factory. As a result of the product required stamping parts are different, metal stamping parts required by the number of working procedures are also different, each punching line is generally composed of a punching machine. The punching line can be divided into different tonnage punching lines according to the different production process of metal stamping parts. Under normal circumstances, each production line should produce different metal stamping parts according to the different tonnage of the punch, and these metal stamping parts must be suitable for production on the production line. Because several different types of processes are produced on each stamping line, and the tonnage of punch required for each process is not the same, a different tonnage of punch is assigned to each line. For example, the first deep drawing process of metal stamping requires a relatively large tonnage of punch, while flanging, punching and other processes require a relatively small tonnage of punch. Therefore, under normal circumstances, a production line will have two relatively large tonnage punches for deep drawing and other work, and the remaining several processes need several sets of relatively small tonnage punch. This can not only meet the process requirements of production and processing, but also make full use of equipment resources, reduce unnecessary waste.

What does a metal stamping workshop need?

2, metal stamping parts process is complex.​

All KINDS OF METAL stamping parts REQUIRED BY the body shop are produced by the stamping shop, except for some semi-finished products purchased by the precision metal stamping COMPANY. The production of each metal stamping part is generally processed through a process. The main production processes are unwinding, blanking, stretching, shaping, cutting, punching, flanging and so on. Among them, the uncoiling blanking is in the stamping production before the sheet material on the blanking machine, its processing for the stamping production of geometric shape. Different stamping parts need different production processes, and different production processes need to change different molds for processing. Because each metal stamping part has a fixed production process route, the production of metal stamping parts complex process route leads to the difficulty of production.

3, both ends of the production line

According to the production process requirements of the punching line, in the arrangement of different tonnage of punch for each process, generally in accordance with the arrangement of high, medium and low tonnage from both ends to the middle of the sequence layout. In this way, two-way production can greatly improve the production efficiency of the stamping workshop and the utilization rate of the punch, so as to reduce the production cost. A huge waste of cost.

4. Batch production in turn

Stamping workshop in the production of metal stamping parts, not only a production of a product, not a planned production of stamping parts this week, but in consideration of the production of die change time, plate cutting quantity and production economy on the basis of batch rotation production. Batch rotation production means that the metal stamping parts arranged to be produced in the production planning period are divided into several batches according to the needs of the body shop. Each batch can be produced at most one batch a day, and the quantity within the planning period is finally completed. The advantage of batch rotation production is not only will not make the production time of a single batch of metal stamping parts too long, affect the production of other metal stamping parts, and then lead to the use of downstream workshops, but also can reduce production costs.

5, production batch change constraints

The production plan OF the stamping SHOP is determined by the type and quantity of stamping parts required by the body shop and the inventory of the stamping parts in the stamping shop. But in the production process of metal stamping parts, there will be many uncertain factors, such as the shortage of raw materials, body workshop demand changes, punch, die failure, etc., so that the production batch changes. However, considering that the production batch is too small, the number of mold changes will increase, while the production batch is too large, which will lead to the inventory accumulation of finished parts, which will increase the production cost, so it is necessary to determine a reasonable range for the change of production batch.

6. Equipment capacity constraints

Due to the metal stamping, parts of the production process are different, and each production process required punch tonnage is not the same, so in the production and processing must do the workpiece process in the appropriate machine tool processing.

7. Flexible production with transportation time

When THE STAMPING WORKSHOP IS IN PRODUCTION, THE METAL STAMPING PARTS GO online from the first process until the last process is finished TO make the metal stamping parts GO offline, and the finished parts with qualified quality are put into the warehouse. When a certain process of metal stamping parts is pressed on the punch, if the production process of the next process does not change, it is still processed on the press. At this time, the semi-finished products of the first process will be processed on the punch for the second process, without transportation time. If the production process of the next process changes, it is necessary to transfer the metal stamping parts to the next punch for processing, or put on the transmission belt to wait for processing. Due to the distance between the two processes, the transportation time will be generated, and the transportation time is determined by the distance between the two processes. Therefore, the more processes required in production, the longer the transportation time. However, the transportation time is much larger than the stamping time, so the transportation and transfer time in the production process cannot be ignored.

To sum up, these characteristics of the stamping shop lead to its production beat can not be consistent with the other three major process shops. Although the body shop put forward production requirements, the stamping shop still needs to make production plans according to their own conditions. This makes the stamping workshop production planning and production scheduling more difficult.