Development of Stainless Steel Investment with Multi-technology Intersection and Fusion is Obvious

In the future development direction, the intersection and fusion of casting technology for stainless steel precision parts will become more and more obvious. The development direction of the new round of science and technology and industrial revolution will not depend solely on one or two disciplines or a single technology, but on the highly cross-cutting and deep integration of multi-disciplines and multi-technology fields. Therefore, stainless steel investment casting should also be integrated with related technologies.

Cross-use with rapid prototyping technology. The cross-use of science and technology is mostly to complement each other. The design and manufacture of wax pattern for stainless steel precision parts casting are complex and time-consuming. Rapid prototyping technology can make up for this shortcoming. However, due to material constraints, the use of rapid prototyping technology alone can not meet the requirements. Therefore, in recent years, many workers first use polymer technology to obtain the prototype of castings, and then manufacture wax molds, so as to put into use in the stainless steel precision casting industry.

For example, light-cured solid modeling technology (SLA) and selective laser sintering technology (SLS) are mature technologies used in combination with investment casting. SLA technology can provide high dimensional accuracy, especially the accuracy of the external surface of parts. The raw material price of SLS is relatively low, and the precision of SLS is also lower than that of SLA technology. In the process of using these two technologies, we must pay attention to controlling the key combination of rapid prototyping technology and casting technology of stainless steel precision parts, including cost control and comprehensive consideration of casting accuracy of parts. Choosing the appropriate balance point is the key to the organic combination of rapid prototyping technology and investment casting technology.

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