Industrial-grade 3D printing applications worldwide are mainly concentrated in the five fields of transportation, aerospace, industrial equipment, consumer electronics, and medical. From the perspective of domestic application of 3D printing, it has been accumulating in the aerospace field and is in the stage of expansion. In the aerospace field, due to weight reduction and strength requirements, the proportion of complex structural parts or large-scale dissimilar components in aerospace equipment is increasing, and this is the advantage of 3D printing. At the same time, in the aerospace field, the sensitivity to the performance requirements of parts is relatively high, and the price is relatively insensitive, which is also conducive to the adoption of 3D printing technology. For plastic parts, due to the limitations of the current types and performance of 3D printing materials, more are currently being trial-produced in the research and development stage. Due to the high cost and low production efficiency, metal parts cannot be used in large-scale batch production parts, so they are more limited to the performance improvement parts of high-end models.
In the medical field, 3D printing has been widely used in dentistry, and the manufacturing scale of metal implants is also expanding. Medical devices, especially customized medical devices, are a field that closely matches the characteristics of 3D printing. Those who cannot afford traditional methods to make prostheses can now have prostheses. With the help of 3D printing, prostheses can be manufactured accurately and at a lower cost.
The relatively large-scale industrial field is still the application of 3D printing injection molds; in other aspects, it is more to use 3D printing in the research and development stage of prototype trial production, and the printing of some prototype parts. Each technology has its own advantages and limitations, and it will also adjust its own development curve according to the needs of the market, as does 3D printing. Nowadays, with the promotion and use of 3D printing technology, it is accepted and recognized by most countries and regions and industries. Coupled with the subsequent changes in design thinking, the enrichment of material types, the improvement of technology maturity, and the reduction of costs, it will become a very important supplement to the traditional manufacturing industry, and become an emerging production industry and emerging production technology. Promote the transformation and upgrading of traditional manufacturing.
Throughout the industrial fields such as aerospace, automobile manufacturing, and nuclear power manufacturing, higher requirements are put forward for the manufacture of large-scale and complex precision components such as titanium alloys, high-strength steels, high-temperature alloys, and aluminum alloys. At present, the existing metal 3D printing equipment forming space is difficult to meet the manufacturing requirements of large-scale and complex precision industrial products, which restricts the application scope of 3D printing technology to a certain extent. Therefore, the development of large-format metal 3D printing equipment will become a development direction.
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