The production of warm forging is a complex and multi-step process that involves rigorous screening of raw materials, fine processing and strict quality control. In order to ensure the quality, performance and reliability of the final product, every link requires delicate operation and efficient management. Starting from raw materials, this paper will analyze the production process and management points of warm forging in detail.
The quality of warm forging first depends on the raw materials selected. Commonly used raw materials include various carbon steel, alloy steel and stainless steel. When selecting raw materials, factors such as their chemical composition, mechanical properties and heat treatment properties should be considered to ensure that they meet the requirements of product design and use.
According to the product design requirements, the raw material is cut into the appropriate size of the blank. The size and shape of the blank should take into account the subsequent heating and forging process. In the preheating stage, the billet is heated to the appropriate temperature to reduce its deformation resistance, improve plasticity, and prepare for subsequent forging.
The billet is heated in the furnace, and the heating temperature and holding time should be strictly controlled according to the type, size and forging requirements of the material. Too high a temperature may lead to overheating and oxidation of the material, while too low a temperature will increase the difficulty of forging. In the heating and insulation stage, the temperature distribution of the furnace temperature and the billet should also be checked regularly to ensure that it is evenly heated.
Forging is the key link in the production of warm forging parts. At this stage, the blank is subjected to pressure or impact in the mold, gradually deforming and filling the mold cavity. The design and manufacturing quality of the die has a crucial influence on the shape and dimensional accuracy of the forging. Therefore, mold manufacturing and maintenance is also an important part of the production process.
After forging is complete, the forgings need to be cooled to fix their shape. The cooling rate should be controlled according to the type of material and forging requirements to prevent cracking or deformation of the forgings. For some forgings that need to improve mechanical properties or improve organizational structure, subsequent heat treatment such as annealing, normalizing or quenching may also be required.
After cooling, the forgings need to be cleaned to remove surface oxides, oil and burrs. The cleaning method can be mechanical cleaning or chemical cleaning should be selected according to the material and requirements of the forging. Quality inspection of the cleaned forgings, including appearance inspection, dimensional measurement and non-destructive testing, is required to ensure that it meets the design requirements and quality standards.
The management and control points in the production process are mainly reflected in the following aspects: First, the quality of raw materials is strictly checked to ensure its reliable source and stable performance; Secondly, make reasonable production plan and schedule to ensure the coordination among all links; Thirdly, it is to strengthen the maintenance and maintenance of equipment and molds to ensure that they are in good working condition; Finally, the establishment of a sound quality management system, including quality inspection standards, operating norms and quality responsibility system to ensure product quality and production safety.
The production process and management points of warm forging involve multiple links and factors that require refined operation and efficient management to ensure the quality performance and reliability of the final product. With the continuous development and technological progress of the manufacturing industry, the warm forging process and equipment will be constantly updated and improved to meet higher level market demand and quality requirements.
