The finite element analysis software ProCAST is used to simulate the flow field and temperature field in the iron mold sand coating process of nodular iron crankshaft, and predict and analyze the possible defects, so as to evaluate and optimize the process before tooling trial production. The finite element...
One of the most important parameters in the iron mold sand coated casting process is the thickness of the sand shell. According to the thickness of the casting, the thickness of the sand shell generally adopts the empirical value of about 6-10mm. The numerical simulation calculation is carried out...
ProCAST calculates the flow field, as shown in Figure 1. It can be seen that the mold filling speed is very fast at the beginning. At 1s, the molten metal begins to fill the gating system and flow to the crankshaft casting. The flow speed in the crankshaft casting...
The finite element analysis software is used to simulate the flow field and temperature field in the iron mold sand coating process of nodular cast iron crankshaft, and predict and analyze the possible defects, so as to evaluate and optimize the process before tooling trial production. The modeling of...
Computer numerical simulation generally includes the establishment of geometric model, meshing, pretreatment (determination of initial conditions and boundary conditions), numerical calculation, processing of calculation results and so on. Before numerical simulation calculation, it is necessary to use CAD software to conduct three-dimensional modeling of crankshaft casting and mold. Generally,...
With the rapid development of automobile industry, the production and sales of engine are also increasing year by year. As one of the main parts affecting engine performance, crankshaft has become the focus of attention. Crankshaft requires not only high comprehensive mechanical properties, but also high heat resistance and...
Iron mold coated with sand has long manufacturing cycle, high cost and complex process test. Once the process design fails, it will cause huge economic losses. Therefore, it is of great significance to use numerical simulation technology to predict casting defects such as shrinkage porosity, shrinkage cavity and inclusion...
Iron mold sand coated casting process is a new net forming casting process. The metal mold cavity is covered with a thin layer of molding sand to form a mold. It has the characteristics of convenient and fast metal mold casting and good concession of shell mold casting. At...
The manufacturing process of cast crankshaft generally starts from the aspects of molten iron melting, spheroidizing treatment, inoculation treatment, alloying, modeling treatment and pouring to improve the comprehensive performance of nodular cast iron crankshaft. (1) Melting of molten iron. In China, factories producing vehicle crankshafts usually use cupola, power...
The commonly used crankshafts at home and abroad are divided into two categories according to materials, forged steel and ductile iron. Compared with the two materials, nodular cast iron crankshaft has the characteristics of lighter weight, better castability, toughness, stronger designability and lower cost. Especially with the development of...