Dual-wavelength/double-structure laser 3D printing technology

Abstract

The invention relates to a dual-wavelength / double-structure laser 3D printing technology. The dual-wavelength / double-structure laser 3D printing technology is applicable to laser printing of two different materials. The printing timing sequences of two different laser wavelengths or the positions, relative to a workpiece, of laser printing heads are set, and three-dimensional printing, including crossing or multi-layer coverage or other complex shapes, of the two different materials can be achieved conveniently. By means of the two laser printing seats, in the actual operation process, the positions or distances, relative to the workpiece, of the two laser printing heads are changed, or the output timing sequences of two laser devices are changed, or the angle, relative to the laser printing heads, of a printed material bearing platform is changed, so that the arrangement mode and wrapping crossing of the two different printing materials as well as printing of a complex structure inside the semi-closed workpiece are achieved. 3D printing is conducted through the two types of laser wavelengths; composite printing of a hard structure and a soft structure is achieved; and different application requirements are met.

Description

technical field [0001] The invention relates to a dual-wavelength / dual-system laser 3D printing technology, which is suitable for laser printing of two types of different materials. By setting the printing sequence of two different laser wavelengths or the position of the laser printing head relative to the workpiece, two types of printing can be conveniently realized. 3D printing of intersecting, multi-layer overlays or other complex shapes of different materials. Background technique [0002] With the rapid development of laser 3D printing technology, it has become an important manufacturing method of hard tissue joints / organs / components commonly used in basic medicine, clinical medicine and precision manufacturing, such as the repair or replacement of human bone defects, oral teeth Planting, cardiovascular micro-stents, and micro-component processing in precision machinery manufacturing, etc. However, with the increasing diversification and refinement of application dire...

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Problems solved by technology

[0003] According to market research, at present, 90% of domestic 3D laser printing technology relies on foreign countries, and 90% of sales products are also imported products, especially laser printing equipment for clinical application of pelvis, artificial joints, dentistry and other components, domestic products still have Many blanks

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