Mechanical Quality Inspector, SPC Quality Control 15

Always remember the PDCA

1. Quality is about evidence, please count the reality of the decline in quality: which products, what are the standard requirements, how much was before, how much is now, and how much has it declined? Special attention should be paid to the use of the permutation diagram to find out the top three items of quality loss, which can be the top three items of cost loss, or the top three items that cannot be satisfied by key characteristics; Find the problem and find the cause for the problem, please use brainstorming, 5 whys, FMEA; until the root cause is found;

2. Take countermeasures for the root causes, which must include document improvement, error prevention and outflow prevention, and personnel training; Make a plan to move forward, please note that the plan should be implemented in stages, and don't be ambitious according to the actual situation.

3. As a project person, you should check every day, keep up with the progress, and often convene meetings.

4. I don't need to talk about the topic of consolidation.

If you can send me your quality report, I can help you analyze and counteract.

SPC quality control is not just to go to SPC, first you have to find the root cause, if the root cause is poor process design? Is it that the employee does not operate according to the process, and you also use SPC to solve it? And there are many ways to control SPC, which control method is right for you?

The foundation of SPC is relatively high, I don't know your measurement conditions here? What is the quality of the personnel? Cycle time?

1. Documented quality control procedures;

2. Strict inspection and recording;

3. Make a clear representation of the inspection status;

4. Monitoring of process capability index CP or CPK;

5. Statistical quality control.

SPC is a kind of quality control analysis software, through SPC to monitor the quality of the product processing process, its last step is to analyze the statistical process, through statistics to analyze the abnormal situation of quality problems. The following mainly explains the content of SPC statistical analysis.

SPC statistical analysis.

Through the SPC system, the process analysis, control chart analysis, histogram analysis, trend chart analysis and process capability analysis of the machined product parts can be carried out. And the quality indicators (standard deviation, CPK) of batches can be analyzed according to different latitudes such as products, workshops, and processes, such as trend chart analysis and comparative analysis by year, month, and week.

You can intuitively see the fluctuation between batches of product parts. In the heat treatment and molding processing workshop, the process data is obtained by automatic collection, and the actual process parameter graph can be drawn by statistical analysis, and the key parameters of the heat treatment, molding and processing are analyzed by comparing with the process requirement parameter graph. These analysis tools are applied in the SPC system at different stages, focusing on different aspects, ensuring the realization of the objectives of the SPC system, and at the same time, the analysis of the data can be formed and exported to the analysis report.

1. Application in process analysis.

Through the analysis of the process, the system automatically calculates the mean, standard deviation, process capability index cp, non-conforming product rate p, etc. of the quality characteristics, and draws the analysis conclusions, and can export the sampling analysis report of the quality characteristics.

2. Analysis and application of control charts.

Through the control chart, it can analyze and judge whether the production process is stable, find abnormal situations in the production process in time and prevent the occurrence of non-conformity.

Learn more about quality inspection methods and learn the use of inspection instruments. In the early stage of the book, I recommend books on quality control, and in the middle stage, you can look at statistical books, such as etc., and then go to take a quality engineer certificate. Then learn 6 Simargue The premise is that you have the interest and patience to do so.

It is the quality control staff on the production line. It is a sampling product.

The purpose of their work is to ensure product quality, so the quality department of many companies is called the quality assurance department, and the Japanese department is called the quality certification department.

Quality control, quality management, use systematic quality management tools to ensure the stability of the production process and prevent the occurrence of defects, such as using standardized operations to prevent man-made defects: the establishment of inspection standards, the issuance of standards, the provisions of operating methods, etc. (process flow chart, potential effectiveness model after the consequences analysis, control plan); Use statistical methods to find out the causes of defects, analyze and take preventive and corrective measures to prevent recurrence (8D report); Use statistical methods to control the stability of process capability SPC; And so on and so forth.

The inspector is mainly to eliminate defects; Quality engineers are mainly responsible for preventing defects.

Now many companies have begun to use SPC software for quality management, only need to input your data into the software, you can analyze the data of the product, which can improve the productivity of the product, it is recommended that you try it online first.

Quality inspection peers, but I am a QE engineer, on the one hand, to learn management knowledge, learn professional knowledge, and also to learn quality management theory, such as spc, TQM, 6sigma and the like, to improve themselves, it is best to take a quality engineer certification, in fact, no matter what line of work, you have to work hard to improve.