Quality control process is carried out at every stage of production in order to ensure that the product produced or the service provided meets the demands and expectations of the consumer in the best way. It is the examination of the extent to which the quality standards determined during the production; planning stage are followed after the production.
It checks whether the purchased raw material meets the predetermined quality standards before it goes into production, design etc. throughout the production process. Examines the suitability of features such as those requested. The main purpose is to detect unexpected malfunctions in advance and to minimize the rate of defective products; to reach the highest possible level of quality for the product or service offered.
The Quality Control process consists of some basic steps. First, the production process to be controlled is selected, and then the targeted quality standards for the product are determined. The performance after production is measured and the quality standards of the targeted and final product are interpreted. If there is a difference between the two, R&D studies are carried out, and the product is put into production again to reach the targeted quality measure.
There are 7 quality tools that are very effective in solving quality problems at the Quality Control stage. These;
- The checklist is used to collect data and organize them for ease of further use.
- The histogram helps to visually assess the distribution of statistics that have been distributed according to the frequency of hit in a particular interval.
- The Pareto diagram objectively represents and determines the main factor influencing the researched problem, and distributes efforts for its eradication.
- The method of stratification divides the data into subgroups on a specific basis.
- The scatter plot determines the type and relationship between variables.
- The Ishikawa diagram reveals the most important reasons influencing the end result.
- The control map helps to track the progress of the process and the action on it. This can prevent it from deviating from the requirements.
The scope of the “7 QC tools training” is expanding rapidly. These 7 QC methods are used in the fields of quality assurance and course control, in the field of office work and management, in the field of education and training, in the field of productivity control, etc.
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Organization of quality control at the enterprise
To ensure that the production of products fully meets the requirements specified in the documents, the company uses a system of technical and administrative measures. The quality control system at the enterprise is based on the following conditions:
- Careful processing and change of technical documentation, which is important for the production of high quality products.
- Development of technical processes important for the production of products that will fully comply with the design documentation.
- The quality control system includes the development and inclusion of supporting documentation. It must contain data on control measurements.
- Periodic verification of the accuracy of measuring instruments and other devices used in the work.
- Purchase of quality materials and components specified in the technical documentation.