1.High cost

2.The production cycle is long

3. Susceptible to impurities

4. Easy to deform

5. Environmental protection

In summary, although the lost wax casting process is a high-precision and high-quality casting process, its shortcomings such as high cost, long production cycle, easy to be affected by impurities, easy deformation, and environmental protection problems can not be ignored. In the future development, it needs to be continuously optimized and improved to make it more suitable for market demand.