The surface pressure distribution of construction machinery forging die is an important problem in die design and manufacture. The rationality of the surface pressure distribution of the die is directly related to the service life of the die, product quality and production efficiency. Therefore, it is of great significance to understand and master the surface pressure distribution of construction machinery forging die for optimizing die design and improving product quality. In this paper, the research on the surface pressure distribution of construction machinery forging die is introduced in detail from three aspects: purpose, method and key factors.
I. Research purpose and significance
There are two main purposes of the research on the surface pressure distribution of the forging die of construction machinery:
- Optimize mold design: By studying the pressure distribution on the surface of the mold, you can find the pressure concentration area and stress concentration area, and then optimize the mold structure and shape, reduce local stress and deformation, and improve the service life of the mold.
- Improve product quality: the pressure distribution of the die surface directly affects the plastic deformation and distribution uniformity of the forging. By studying the surface pressure distribution of the die, the structure and parameters of the die can be adjusted, the stress non-uniformity and defects can be reduced, and the dimensional accuracy and surface quality of the product can be improved.
- Research methods and technical means
The following methods and technical means are usually used to study the surface pressure distribution of the forging die of construction machinery:
- Numerical simulation analysis: The finite element method or computational fluid dynamics method is used to establish a numerical model between the die and the forging to simulate the deformation and stress distribution during the loading process. By changing the structure and parameters of the die, the pressure distribution under different conditions is analyzed and the suitable design scheme is found.
- Experimental testing: Force sensors, strain gauges, high-speed cameras and other experimental testing equipment are used to measure and monitor the surface pressure of the mold during loading. Through the processing and analysis of the measured data, the actual distribution of the die surface pressure is obtained, and the numerical simulation results are compared and verified.
- Experience summary and optimization design: combined with practical experience and production practice, summarize and summarize the influence of different forging shapes and materials on the pressure distribution of the die surface. By optimizing the mold shape, structure and process parameters, the surface pressure distribution of the mold is more uniform and reasonable.
Key factors and considerations
When studying the die surface pressure distribution of construction machinery forging dies, the following key factors and points need to be considered:
- Forging shape and size: The shape and size of the forging determine the stress distribution during the loading process. For forgings of different shapes, different stress concentration areas will be produced, which will affect the pressure distribution on the die surface.
- Mold material and hardness: Choosing the right mold material and hardness can change the friction and wear characteristics of the mold surface. By optimizing material properties and hardness, the mold surface can withstand a more uniform pressure distribution.
- Mold structure and channel design: Reasonable mold structure and channel design can improve the flow field distribution and cooling effect on the mold surface, and then affect the pressure distribution on the mold surface.
Iv. Conclusions and Prospects
It is a complicated and important problem to study the surface pressure distribution of forging die of construction machinery. An accurate understanding of the pressure distribution on the die surface is of great significance for the design and manufacture of the die, which can help to optimize the die structure and improve product quality and production efficiency.
With the continuous development of numerical simulation technology and experimental testing means, we can more accurately study and predict the die surface pressure distribution of construction machinery forging die, and carry out more in-depth research. In the future, in the design and manufacture of construction machinery forgings, attention should be further paid to the pressure distribution on the surface of the mold, combined with practical experience and advanced technical means, a more reasonable optimization plan is proposed, and a contribution is made to the development and progress of the construction machinery industry.
