Casting technology rapid verification method based on sand core 3D printing technology

Abstract

The invention provides a casting technology rapid verification method based on the sand core 3D printing technology. In the casting research and development or technology improvement stage, three-dimension casting technology drawings of different schemes are designed, three-dimension sand core drawings of different technology schemes are correspondingly designed, the sand core 3D printing technology is applied to produce sand cores of different technology schemes at the same time, finally, parallel actual pouring verification of the different technology schemes is conducted, and the optimal casting technology scheme is determined. According to the casting technology rapid verification method based on the sand core 3D printing technology, the sand core 3D printing technology is adopted formanufacturing the sand cores, the sand cores of different casting technologies can be rapidly produced under the situation that die manufacturing is not needed, and the purposes that the casting technology verification period is shortened, the technology verification cost is reduced, and the casting technology design accuracy is improved are achieved.

Description

technical field [0001] The invention belongs to the technical field of casting technology, and in particular relates to a rapid verification method of casting technology based on sand core 3D printing technology. Background technique [0002] Casting is a manufacturing process in which liquid metal smelted into a certain composition is injected into a mold cavity, and then cooled and solidified to obtain parts with the required shape and performance. It has many processes and a long production cycle. Casting process is the technology and method of producing castings by applying casting related theories and systematic knowledge, mainly including molding core making process, melting and pouring process, etc. It is the core link of casting production and one of the key factors determining the quality of castings. [0003] Casting process design is generally based on the experience of engineers, combined with relevant standards and manuals for parameter selection and design. Th...

AI Technical Summary

Problems solved by technology

To apply the traditional method to verify the casting process, it is first necessary to make a mold and carry out debugging and production. For some castings with complex structures and large wall thickness changes, it often requires multiple debugging, changing the casting process parameters, and modifying the mold. Due to the limitations of the mold, the traditional casting process requires Only one process plan can be verified at a time

Due to the long cycle and high cost required for casting mold making and modification, the cost and cycle of casting research and development stage are greatly increased

Although the casting process verification based on simulation technology is less costly and more efficient than traditional verification methods, because of the correlation between the simulation accuracy and the input material thermophysical parameters, there are differences in the thermophysical parameters of casting materials used by various foundry manufacturers, and It is not easy to collect on-site, resulting in low accuracy of simulation results, and finally needs to be verified in the commissioning and production stage

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