How to Control the Quality of Precision Casting Products

author: kevin

2024-06-10

How to Control the Quality of Precision Casting Products

Before Dr. William Deming, the American quality management master, proposed the concept that "product quality is produced, not inspected", early quality management was limited to quality inspection and could only implement post inspection on product quality. William Deming's famous quality quote states that only by strictly following the production process and operating instructions at every stage of the production process can the quality of the product be guaranteed. If process control is ignored and only inspection is relied on, it is impossible to ensure product quality, because quality inspection can only remove defective and scrap products, and cannot improve product quality. That is to say, the focus of quality control must not be on post inspection, but on the manufacturing stage, that is, the production process stage. Today, precision casting manufacturer Tianyao Metal will talk to you about several aspects of product quality control.

How to comprehensively control product quality? The product is basically positioned in the design stage, and then the quality is guaranteed by procurement, processing and manufacturing, packaging, and transportation. If these links are well controlled, the quality will naturally be well controlled. So product quality is achieved during the design and production process, and quality is achieved through process management. How to control product quality:

1、 Establishing Quality as the Lifeline Awareness of Enterprises

Everyone should realize that if the quality of the product is poor, there will be no market for the product. If the product does not have a market, the enterprise will lose its source of profit. Over time, the enterprise will go bankrupt, followed by employee unemployment. Of course, for companies, even if the product market is good, they should still be prepared for danger, improve product quality, and create a better corporate reputation. As the saying goes, "If you are in full bloom, a fresh breeze will come.".

2、 Establishing customer awareness of quality

Putting the customer at the center of everything, seeing oneself as the customer, seeing oneself as the operator of the next process, and seeing oneself as the consumer of the product. In this way, we will consciously do our work well, and everyone will do their work well, so that the quality of the product can be guaranteed. If we cut corners in our work, it will harm our own interests.

3、 Establishing a preventive awareness of quality

"The quality of a product is produced and designed, not through inspection. It is important to do things well in the first place." This is not a slogan, but rather reflects the preventive nature of product quality. If quality control does not start from the source, it will be difficult to control the quality of the product. Even if a large amount of inspection manpower is invested in production to ensure quality, the cost of the product will greatly increase due to the large number of defective or even scrap products generated during production due to lack of control from the source. Moreover, some product quality issues may not be detected and remedied through subsequent processes, which requires us to do a good job in the first place to prevent quality problems from occurring.

4、 Establishing a program awareness of quality

Quality management is the whole process and the whole company, and the work between different processes and departments must be orderly and effective. It is required that all quality management personnel and operators strictly follow the procedures. If they do not follow the procedures, the chances of making mistakes will increase, and the quality of the product cannot be guaranteed.

5、 Establishing a sense of responsibility for quality

80% of quality problems originate from management, while only 20% of problems originate from employees. This means that managers can control about 80% of defects, while operators can control less than 20% of defects. While managers improve their management skills, they must also make operators understand the following four points:

1. The operator knows how to do it and why it should be done;

2. The operator knows whether the product he produces meets the requirements of the specifications;

3. The operator knows what consequences will arise if the product they produce does not meet the specifications;

4. The operator has the ability to handle abnormal situations correctly.

If all four points mentioned above have been met and the material conditions such as equipment, tooling, testing, and materials in production are met, but the fault still occurs, it is considered a controllable defect by the operator; If any of the above four points cannot be met or if the material conditions such as equipment, tooling, testing, and materials are not met during production, resulting in malfunctions, it is the responsibility of the management personnel. Only by understanding the responsibility for quality issues can we make targeted improvements and enhance quality.

6、 Establishing a continuous awareness of quality delivery

There is no best quality, only better; Quality improvement is a continuous and continuously improving process that follows the PDCA model, which can be summarized as follows:

P-Plan: Develop improvement plans based on product requirements;

D - Implementation: Implementation plan;

C-Inspection: Inspect the process and product according to product requirements;

A - Disposal: Take measures to continuously improve product quality.

Only in this way can our product quality continue to improve, and only by continuously improving quality and innovation can we continuously surpass the market.

7、 Establishing cost awareness of quality (i.e. quality standard awareness)

Ensuring quality and pursuing profit are the eternal goals of enterprises. In order for enterprises to develop, they must pay attention to the cost of production. However, cost is closely related to quality. Good quality can reduce the cost of products. If the quality of products is poor and customers often complain about returns, their costs will remain high, and even drive the enterprise to a dead end.

The reason for the decline of many enterprises is not due to a lack of customer sources or orders, but rather due to poor internal management and inability to reduce costs, which prevents them from participating in market competition. Enterprises should take this as a warning. But the stricter the quality, the more advantageous it is for the enterprise. On the contrary, excessively improving product quality will lead to excess quality and also increase production costs. So when we produce, we require each process and link to strictly follow customer standards, so that we can significantly reduce costs and improve market competitiveness.

8、 Establishing an educational awareness of quality

With the development of the times, the concept of quality management is constantly being updated and needs to be learned. Successful enterprises in the 21st century will belong to those that are learning and growing. Strengthening internal training and improving the innovation ability of all employees will make the enterprise prosperous and constantly changing. So, "Quality starts with education, and finally education." It has been proven that successful enterprises strictly produce products according to the concept of "products are produced". They strictly control every aspect of product production, ensuring that there are no errors in each link's quality. Only by closely linking each link can the products produced be qualified and good products that can withstand market inspection.

Details determine success or failure, and attitude determines everything. Only by establishing a strong sense of quality, striving for excellence in quality, and persistently pursuing it can we do a good job in quality. With quality, we can have development and the future. Compared to short-term orders and customer sources, strict quality control and excellent quality are the foundation for enterprises to establish themselves in the market. Only by continuously improving quality to new heights can this giant ship ride the wind and waves, bravely move forward, and go higher and farther.