Marine crankshaft forging is an important part of Marine power system, its dimensional accuracy and tolerance control are of great significance to the quality and performance of the product. The dimensional accuracy and tolerance control methods of Marine crankshaft forgings are discussed in this paper.
Dimensional accuracy refers to the degree of conformity between the actual size of the manufactured part and the design size. Tolerances are the range within which the dimensions of a part are allowed to vary. For Marine crankshaft forgings, the control of dimensional accuracy and tolerance is very important, because they directly affect the assembly and operation performance of the crankshaft.
Factors affecting dimensional accuracy and tolerance
Material factors: The properties and state of the material have an important impact on dimensional accuracy and tolerance. For example, the hardness and toughness of the material affect the cutting force and deformation during the processing, thus affecting the dimensional accuracy.
Processing equipment: The accuracy and stability of processing equipment have a direct impact on dimensional accuracy and tolerance. For example, the accuracy of the machine tool, the wear of the tool, etc., will affect the dimensional accuracy and tolerance of the part.
Machining process: The selection and implementation of machining processes also affect dimensional accuracy and tolerances. For example, the heat treatment process, cooling method, etc., will have an impact on the size of the part.
Dimensional accuracy and tolerance control method
Selection of high-quality materials: The selection of materials with good performance and stability can reduce deformation and error during processing, and improve dimensional accuracy and tolerance.
Improve the accuracy of processing equipment: Regular maintenance and calibration of processing equipment to ensure the accuracy and stability of machine tools, tools and other equipment, so as to improve the dimensional accuracy and tolerance of parts.
Optimization of processing technology: Through reasonable heat treatment process, cooling methods, etc., reduce deformation and error in the processing process, improve the dimensional accuracy and tolerance of parts.
The use of advanced measuring technology: the use of high-precision measuring equipment and measuring methods, accurate measurement and analysis of parts, timely discovery and correction of errors, improve the dimensional accuracy and tolerance of parts.
The dimensional accuracy and tolerance control of Marine crankshaft forgings are important links to ensure product quality. By selecting high-quality materials, improving the accuracy of processing equipment, optimizing processing technology and adopting advanced measuring technology, the dimensional accuracy and tolerance of Marine crankshaft forgings can be effectively improved to ensure that the quality and performance of products meet the requirements. At the same time, with the continuous progress and development of science and technology, new technologies and methods will continue to emerge, providing more options and possibilities for the dimensional accuracy and tolerance control of Marine crankshaft forgings.
