Quality assurance in manufacturing process of mining machinery forgings

Mining machinery forging is an important equipment component in mining and engineering construction, and its quality directly affects the performance, safety and service life of the equipment. Therefore, in the manufacturing process of mining machinery forgings, quality assurance is very important.

Preliminary preparation

The preparatory work of manufacturing mining machinery forgings includes technical preparation, site preparation, equipment and personnel preparation. Technical preparation includes detailed study and understanding of product drawings, technical requirements, manufacturing standards, etc., in order to develop reasonable manufacturing programs and processes. Site preparation includes finishing, cleaning and safety measures on the production site to ensure that the production environment meets the specified requirements. Equipment and personnel preparation includes the selection of suitable processing equipment and personnel, and the calibration and maintenance of equipment and personnel to ensure the stability and reliability of the manufacturing process.

Material selection

Material quality is the key factor to guarantee the quality of mining machinery forgings. When selecting materials, the mechanical properties, chemical composition, physical properties and other indicators should be fully considered. At the same time, according to the product use conditions and manufacturing requirements, the selection of materials that meet the requirements of the standard. In addition, the incoming inspection and storage management of materials also need to be strictly controlled to prevent materials from moisture, rust, damage and other problems affecting product quality.

Process planning

Process planning is an important link in the manufacturing process of mining machinery forgings. Reasonable process flow should include the formulation of processing specifications, clear precision requirements and quality standards of each process, and specify the inspection process. Processing specifications should specify the selection of processing equipment, cutting parameters, cooling methods and other details. At the same time, we should also develop a sound inspection process, including first inspection, inspection and final inspection, to ensure that the quality of each process meets the requirements. In addition, production efficiency and cost need to be fully considered in the process planning stage to improve the overall economic benefits.

Process control

In the manufacturing process, the critical control points should be strictly controlled. For example, in the forging process, parameters such as forging temperature, deformation degree and cooling speed should be controlled to ensure that the material has good mechanical properties and microstructure. In the process of processing, the normal operation of machine tool accuracy, tool wear, coolant use and other links should be ensured to avoid product quality problems caused by equipment failure or improper operation. In addition, environmental control in the production process should also be strengthened, such as dust, rust, waterproof and other measures to ensure that product quality is not affected.

Inspection of finished product

The inspection of finished products is the last gateway to ensure the quality of mining machinery forgings. In the inspection stage of the finished product, a comprehensive quality inspection should be carried out on the product, including the inspection of appearance quality, dimensional accuracy, mechanical properties and so on. The appearance quality should mainly focus on the surface roughness, defects and damage of the product. Dimensional accuracy testing should be measured and compared in accordance with drawings and technical requirements to ensure that the product size meets the requirements. Mechanical properties testing should select representative samples for tensile, impact, hardness and other tests to assess whether the mechanical properties of the product meet the expected requirements.

At the same time, strict factory inspection and acceptance process should also be carried out in the finished product inspection stage, and unqualified products should be repaired or scrapped to avoid unqualified products entering the market, affecting corporate reputation and customer satisfaction. In addition, third-party quality testing and certification systems should be actively implemented to improve product quality and reliability.

This paper discusses the quality assurance in the manufacturing process of mining machinery forgings from the aspects of pre-preparation, material selection, process planning, process control and finished product inspection. By strictly controlling the quality of each link, we can ensure that the product quality of mining machinery forgings meets the standard requirements, and improve the performance, safety and service life of the equipment. With the increasingly fierce market competition and the continuous improvement of product quality, the importance of quality assurance in the manufacturing process of mining machinery forgings is becoming more and more prominent. Therefore, manufacturing enterprises should continuously optimize the production process and improve the quality management level to meet the market demand and promote the sustainable development of enterprises.