3D printing technology brings new growth point to precision casting industry


In the 10-year golden development period of precision casting industry, with the increasing demand of downstream customers, higher demands have been put forward for the technical capacity, production efficiency, quality control and cost of precision casting enterprises. However, the traditional precision casting process is difficult to have a good competitive advantage in these aspects. At this time, 3D printing technology has entered the industry's vision.

Advantages of 3D printing technology

No tools for making molds and wax molds are needed

The mould shell has high forming speed and small mould modulus

To meet the needs of production and trial production of various varieties and small batches

Meet the complexity requirements of casting design

Reduce the production cost of casting

Improve casting quality, perfect surface details

In the process of using 3D technology to improve casting ability, many kinds of materials and supporting technologies, such as wax mold, sand mold, PS powder, photosensitive resin, metal powder, etc., are placed in front of the precision casting enterprises. Among them, the SLA rapid casting technology using photosensitive resin materials is the leader among them.

1、 Fast

Fast design: mold data, rapid adjustment of product design, convenient for rapid optimization of industrial design

Fast production: mold production can be completed in 8-24 hours, avoiding the long cycle of mold production, casting quickly and obtaining castings

2、 High quality

Small size shrinkage: according to mold data 1:1, the size error can be controlled within 100 mm ± 0.08 mm

Good surface quality: ra1.17 μ m after polishing

High structural strength: high strength, not easy to damage, and has a certain degree of temperature resistance, easy to transport and inventory

Integrated molding of complex structure: inner cavity structure and fine lines of parts can be perfectly realized

3、 High casting success rate

Mold and die are not required to be integrated

According to the mold design adjustment, the shell should be evacuated according to the topological structure, and appropriate ventilation holes should be reserved, so that the mold can burn fully during the baking process, and the whole mold will collapse inward to ensure the integrity of the mold shell

The casting can be obtained by casting directly after obtaining the mold shell without additional cavity

4、 Environmental protection

The material will be directly gasified after calcination, which will not produce more pungent smell and black smoke

The antimony content of the material is less than 1ppm, the ash content is less than 0.005%, and there is no solid waste and hazardous waste