In the production of precision forgings, the prevention and control of common defects and quality problems are of great significance to improve product quality, reduce scrap rate and enhance enterprise economic benefit. This paper will discuss the common defects and quality problems in the production of precision forgings, and put forward the corresponding prevention and control measures.
Common defects and quality problems
Surface cracks: Cracks may occur on the forging surface due to improper operation, material problems or equipment failures during forging.
Internal defects: including pores, shrinkage holes, inclusions, etc. These defects may be caused by raw material problems, improper melting, unreasonable forging process, etc.
Insufficient dimensional accuracy: The dimensional accuracy of the forging does not meet the design requirements, which may be due to die wear, equipment accuracy decline or improper operation.
Mechanical properties are not up to standard: such as tensile strength, yield point, impact toughness and other mechanical properties indicators do not meet the requirements, which may be related to heat treatment process, chemical composition and other factors.
Prevention and control measures
Strict control of raw materials: select high-quality raw materials, and carry out strict warehousing inspection to ensure that the chemical composition, mechanical properties, surface quality of raw materials meet the standards.
Optimization of forging process: According to product requirements and raw material characteristics, develop a reasonable forging process, including heating temperature, deformation speed, deformation degree, etc., in order to reduce internal defects and surface cracks.
Equipment maintenance and accuracy guarantee: regular inspection, maintenance and maintenance of forging equipment to ensure that the equipment is in good working condition. At the same time, the equipment is calibrated regularly to ensure that its accuracy meets the production requirements.
Quality control and inspection: Establish a strict quality control system to inspect and monitor the key processes in the production process. Use suitable testing equipment and methods, such as non-destructive testing, metallographic testing, etc., to find and deal with defects and quality problems in a timely manner.
Personnel training and skill upgrading: Strengthen the training and skill upgrading of operators to improve their operation level and quality awareness. Ensure that the operator is familiar with the process, master the equipment operation skills, and be able to detect and deal with abnormal conditions in the production process.
Continuous improvement and innovation: enterprises are encouraged to carry out continuous technological improvement and innovation, introduce advanced production processes and equipment, and improve production efficiency and product quality. At the same time, strengthen cooperation with scientific research institutions, universities, etc., and jointly promote the progress of precision forging production technology.
To prevent and control the common defects and quality problems in the production of precision forgings, enterprises need to start from the aspects of raw material control, forging process optimization, equipment maintenance and accuracy assurance, quality control and inspection, personnel training and skills improvement, as well as continuous improvement and innovation. By taking a series of effective prevention and control measures, the incidence of defects and quality problems in precision forging production can be reduced, product quality and enterprise competitiveness can be improved, and sustainable development can be achieved.
