• 2023-06-19
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• 5 Comments

How to reduce mold development costs?

Today, with the rapid development of the manufacturing industry, how to reduce the problem of long mold development cycle and high cost has become a new goal pursued by everyone.

Product design

1, plate selection

Under the premise of meeting the strength requirements of the vehicle, enterprises should try to use the more common and mature technology on the market. For example, one of our company's front anti-collision beam inner plate material selected Swedish knife-edge material DOCO860, due to the high strength of the plate in accordance with the general process of the development of the mold after forming the opening rebound of 8MM, arc rebound of 15MM. For these problems, we can only carry out multiple tests through rebound compensation, not only the cycle is long, but also the material waste is serious.

2. Product structure

When developing multiple models, the versatility of the product should be considered. In addition, the structure of the product should be simplified to avoid increasing the mold process or complicating the mold structure.

3, the application of synchronous engineering

Stamping synchronous engineering (SE) is in the product design stage, the stamping technician is involved in the process analysis of the product in advance, the errors and defects are eliminated in the design stage, and the development cycle of the mold is shortened. As can be seen from the figure, a process link is eliminated after the use of synchronous engineering, so that the tooling manufacturing starts in the shortest time, providing sufficient time for manufacturing.

Production technology

At present, there are two types of production lines used by enterprises: manual production lines and automatic production lines. As far as the automatic line is concerned, in order to ensure the automatic slide of production waste, the Angle between the slide plate and the workbench must be greater than 20°, plus the automatic line mold feeding height requirements are consistent, and finally in order to ensure that the waste can slip freely, the height of all molds must be increased. However, for the whole vehicle, reducing the mold height is an effective way to save the cost of mold development. The problems mentioned above do not exist with manual production lines. Each enterprise can choose the production mode and production equipment according to its own situation, and finally achieve small input and large output. Aluminum plate spot welding machine

Mold making

1. Mold process

(1) Consider blanking process first, then consider drawing process With the application of high-strength steel plates in automobile production, in order to ensure that high-strength plates can be formed, the success probability of post-blanking forming method is higher, and there is no blanking ring compared with drawing, and the material utilization rate is greatly improved. However, drawing process is easy to ensure product quality, and the commissioning cycle can be shortened. Therefore, the two should be combined to develop the optimal process.

(2) Blanking with a set cutting process The waste after blanking of some parts can be used again to produce small parts of the same material.

(3) The maximum requirements for the realization of left and right parts of the mold or a mold multi-cavity way we develop products are almost symmetrical, if the left and right parts of the mold production only need to increase the size of the symmetrical parts on the width (length) of a single piece of the mold size is the new process of the mold size. In comparison, it can save a set of guiding mechanism and reduce the weight of the overall mold. For narrow and long parts, it is recommended to use a mode of multi-cavity production.

2. Mold design

In the design of mold structure, some structures are redundant. For example, in order to ensure smooth take-up, the mold is often retained on the pneumatic jacking device, which is almost not used in actual production.

The requirement of the service life of the mold directly affects the material selection of the mold. Our company generally requires that the service life of the mold is 500,000 strokes, but in the current multi-variety, small and medium-sized batch production, the service life of the mold continues to meet the requirements of 500,000 strokes is somewhat unreasonable. The mold wall thickness can be properly reduced, thus reducing the cost.

There are many factors affecting the cost of mold manufacturing, and the actual situation of each enterprise is not the same, and the requirements for mold products are not the same. The above is based on the actual analysis and summary of our factory, a little suggestion, hope to bring a little inspiration to the peer.