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Talking about the quality and...

DATE:2019-08-31 17:09:39 FROM:

In recent years, Japan and South Korea's car in the world market's aggressive attack, the old European and American auto giants have lost ground, the global competition in the automotive mold market has intensified, and new car development has become the focus of the market, but the original European and American automotive molds for new car development. Enterprises have been screaming for reasons such as high cost, insufficient human resources, and lack of investment enthusiasm. The closure of European and American auto mold companies has turned into the mainstream of the industry. At the same time, as China's auto market continues to heat up, China's auto mold companies have developed rapidly, but the key factor that currently hinders and influences this process is the quality of molds. Most mold companies in China are still not doing well. In line with international standards in marketing, standards, materials, processes, services, etc. Auto molds are also a fast-growing industry in China. Therefore, there are gaps in management, technology, equipment and human resources between different companies, resulting in confusion among users. On the whole, China's auto molds have not fully obtained users in terms of quality. Recognition and trust. As a custom-made one-piece production product, the user's trust and the supplier's understanding of the user's needs are the most important, which requires a long run-in period. Quality is trust, understanding can produce quality, this is a process of continuous circulation. Only by first entering this process and entering a virtuous circle, China's automotive molds can quickly move to the world and take a leading position for quite a long time.
1. Who moved the mold to process the quality of the cheese?
Mr. Wang Zhengxiong: In the mold manufacturing process, there are many factors affecting the quality of the mold. I think that mold design, mold processing, mold assembly and debugging are the key factors affecting the final quality of the mold.
Mold design is the most critical link to determine the innate quality of the mold. The quality of the stamping process design and structural design directly determines the quality of the mold and the quality of the stamped parts. Designers should not only consider meeting customer requirements, but also consider the moldability, reliability, maintainability, and ease of use, safety, and longevity of the mold.
The mold processing process is also an important part of ensuring the quality of the mold. The processing method and processing accuracy in the mold manufacturing process will affect the service life of the mold. The machining accuracy of each part of the mold directly affects the overall assembly quality of the mold. In addition to the influence of the accuracy of the equipment itself, it is also necessary to improve the technical level of the mold fitter and adjuster in the grinding and debugging process by improving the processing method of the parts. Improve mold processing quality and assembly quality, so that its mold performance, quality and reliability meet customer production requirements.
Mr. Li Shuxin: In the mold industry, after years of market operation, all enterprises have taken the four elements of quality, cycle, cost and service as the symbol of their core competitiveness. Among these four elements, everyone puts quality more and more in the first place.
In the whole process of stamping die development, it can be summarized into such ten major links:
1 stamping process design
2 DL diagram design
3 digital model redesign
4 Structural design
5 FMC production
6 one-time processing
7 initial assembly
8 secondary processing
9 final assembly
10 debugging
It should be said that these ten links are the core processes of mold development, and they have a great impact on the final quality of the mold. The first four links are the design and technical aspects of the mold, and the stamping process design is very important; the DL diagram design is the layout and planning of the stamping process design; the digital model redesign is the analysis and compensation of the defect prediction after stamping and forming; It is a scientific, reasonable and economical structure to realize the stamping process design, reflecting the operability, maintainability and manufacturing processability of the mold. Therefore, the design skills of the first four links determine the final quality of more than 85% of the mold. This is precisely why in recent years, major mold factories have strengthened their technical teams, and some private enterprises have also established their own mold development technology teams.
The last six links are basically manufacturing-oriented processing technologies. In these processes, more and more applications are programmed to drive machine tool processing. There are two major characteristics of processing here: First, the degree of manufacturing and processing of CNC machine tools is becoming more and more popular, and processing is becoming more and more intelligent; second, more and more aspects of quality are guaranteed by machine tools, not by manual guarantee. In the last six stages, the most important two aspects are: one is the processing accuracy; the other is the debugging level.
High level of machining accuracy is by no means simple and skilled, and it contains a lot of craftsmanship. That is to say, a high-precision machine tool does not necessarily produce a high-precision product because it lacks a process; a low-precision machine tool can also produce a high-precision product because it masters the craftsmanship. Therefore, in order to improve the machining accuracy of CNC machine tools, the key is to improve the processing level and the execution rate of the process.
Debugging is the verification and verification of design technology and machining accuracy. At the same time, it has the ability of comprehensive analysis and processing to solve the unrealized design intent through debugging. Therefore, it can be said that the key link affecting the final quality in the manufacturing process is the machining accuracy and commissioning level.