In the machining process of wind power spindle forging, it is usually necessary to carry out grinding operation to meet the requirements of precision and surface quality. Grinding refers to the use of abrasive particles to cut the surface of the workpiece, so that the surface of the workpiece to achieve a certain precision and finish. The grinding characteristics and tool selection methods of wind power spindle forgings will be introduced in detail below.
First, grinding characteristics:
High hardness: Wind power spindle forgings are usually made of high-strength alloy steel materials with high hardness. This requires that the selected grinding tool has sufficient hardness and wear resistance to maintain a long life during grinding.
Complex shape: wind power spindle forgings often have complex geometric shapes, such as internal and external cylinders, spherical surfaces, chamferes, etc. Therefore, it is necessary to choose a grinding tool suitable for different shapes when grinding.
Large thermal expansion coefficient: Because the wind power spindle forging will be heated by the heat source during the processing, the thermal expansion coefficient of the workpiece and the grinding tool are different. This requires the selection of grinding tools with good thermal stability, able to maintain stable dimensional accuracy at high temperatures.
High surface quality requirements: as an important transmission device, the wind power spindle forging will be subjected to greater load and friction during use. In order to reduce friction loss and prolong service life, the surface quality of wind power spindle forging is required to be higher. Therefore, it is necessary to select the grinding tool and grinding parameters that can meet the requirements when grinding.
Second, tool selection:
Grinding stone: Commonly used grinding tools include grinding stone and grinding wheel. For the grinding of wind power spindle forgings, suitable grinding stones can be selected for processing. According to the different material and shape of the workpiece, choose a grinding stone with different structure and particle size.
Abrasive flakes: For some special shapes of wind power spindle forgings, abrasive flakes can be selected for ultra-precision grinding. Abrasive sheet has the characteristics of good flexibility, good cutting effect and high surface quality.
Grinding wheel: A grinding wheel is a cutting tool with granular abrasive particles, often used for coarse grinding and semi-fine grinding. According to the workpiece material, shape and requirements, choose different types of grinding wheel, such as reinforced resin grinding wheel, diamond grinding wheel, etc.
When choosing a tool, it is necessary to comprehensively consider the material, shape, processing requirements and hardness, wear resistance, stability and other factors of the wind power spindle forging. At the same time, the tool should be adjusted and optimized according to the actual grinding process. The machining efficiency and machining quality of wind power spindle forging can be improved by reasonable selection of cutting tools and optimization of grinding parameters.
