As an important part of ship manufacturing, the accuracy requirement of Marine rudder forging directly affects the stability and safety of ship operation. Therefore, it is very important to strictly control and accurately detect the precision of Marine rudder forging. This paper will discuss how to control and test the accuracy of forgings of Marine rudder system.
Precision control
Process planning: In the manufacturing process, process planning is a key link to ensure the accuracy of forging. Through accurate calculation and simulation, reasonable forging temperature, deformation degree, cooling speed and other process parameters are determined, which provides basic guarantee for subsequent processing.
Die design: The design accuracy of the die directly affects the forming accuracy of the forging. Therefore, we should ensure that the size, shape and surface finish of the mold meet the design requirements, and carry out regular maintenance and correction to ensure the accuracy of the mold.
Processing equipment: The selection of high-precision and high-stability processing equipment is a necessary condition to ensure the accuracy of forging. The accuracy and stability of the equipment ensure the control of the size and shape of the forgings during processing.
Process control: In the process of processing, temperature, pressure, speed and other process parameters should be monitored and adjusted in real time to maintain a stable processing state and reduce the occurrence of errors. At the same time, the precision calibration and maintenance of the equipment are carried out regularly to ensure the normal operation of the equipment.
Personnel training: The skill level of the operator has an important impact on forging accuracy. Improve the skill level of operators through regular training and skill upgrading, so that they can better understand and execute process requirements, thereby reducing human error.
Detection method
Direct measurement method: Through the caliper, micrometer and other conventional measuring tools to directly measure the forging, obtain the size data. This method is simple and intuitive, but accuracy is limited by the resolution of the measuring tool and the skill level of the operator.
Projection measurement method: The outline of the forging is projected onto the screen by the projector, and the dimensional data is obtained by measuring the projected image. This method is suitable for more complex contour measurement, but the accuracy is affected by the resolution of the projector and the accuracy of the measurement method.
Optical measurement method: non-contact measurement of forgings using an optical microscope or laser scanner. The method has the characteristics of high precision and high efficiency, and is suitable for the measurement of complex shapes and small sizes. However, the equipment costs more and requires professional operators.
Coordinate measurement method: Through the use of coordinate measuring machine for forging multi-azimuth, multi-angle measurement, to obtain comprehensive dimensional data. This method has high accuracy and adaptability, but the equipment cost and maintenance cost are high.
Computer-aided testing method: The model is constructed using CAD software, and then the accuracy of forging is evaluated by comparing with the actual measurement data. This method is convenient and fast, and can realize automatic detection and data processing. However, it is necessary to establish an accurate CAD model in advance and ensure the accuracy of measurement data.
In the actual detection process, the appropriate detection method should be selected according to the specific situation. For forgings with high accuracy requirements, optical measurement, coordinate measurement or computer-aided detection can be used for accurate measurement. For forgings with general requirements, direct measurement method or projection measurement method can be used for rapid detection.
In summary, strict control and accurate detection of the precision of Marine rudder forging is the key link to ensure product quality. The precision of forgings can be improved effectively through reasonable process planning, die design, machining equipment selection and machining process control. At the same time, adopting appropriate detection methods to accurately detect forgings can provide a strong guarantee for product quality.
