Basic functions of traditional quality management and reliability engineering

This paper will introduce the basic functions of traditional quality management and reliability engineering, as well as their differences and application tools.

manufacturing stage

In the manufacturing stage, we should ensure that the process conditions can be met, examine and approve the material selection and tolerance, ensure the correct change of drawings, and make the process meet the technical requirements through process research. Determine the capacity of production equipment and processes, conduct process inspection and supervision, investigate the reasons for out of control, and take immediate measures to evaluate the operational capacity of production workers; Prepare management drawings of parts, components, assemblies and products to be manufactured.

test

Inspection, including process inspection, supply inspection, final inspection and product inspection. Ensure that all parts are assembled correctly, in the right order and in the right position; Prepare inspection standards, manuals and procedures, check the causes of unexpected defects, report inspection results, take corrective measures and deal with nonconforming products.

manufacture test

Test the finished product to evaluate its quality.

Reliability and maintainability design

The basic function of reliability engineering is to determine the reliability and maintainability indexes of products. Reliability and maintainability design to meet the requirements of reliability and maintainability.

reliability analysis

Conduct qualitative and quantitative reliability analysis.

Testing and evaluation

Conduct reliability growth test, qualification test and acceptance test. Evaluate the reliability of products.

Application tools

Quality management and reliability engineering use different tools. Reliability engineering mainly applies probability theory and mathematical statistics; Quality management uses sample mean management chart, causal chart, correlation chart, pareto chart and batch allowable defect rate.