Rapid forming method based on double-forming head

A forming method and forming head technology, which is applied in the field of rapid prototyping based on double forming heads, can solve the problems of difficult balance between workpiece surface quality and overall processing efficiency, and achieve high-precision and high-efficiency forming by improving surface quality and overall processing efficiency Effect

Active Publication Date: 2014-12-03
HEBEI UNIV OF TECH
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Problems solved by technology

This method adopts a double-precision forming head, the high-precision forming head is responsible for the printing and manufacturing of the outer area of ​​the workpiece, and the conventional precision forming head i

Method used

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  • Rapid forming method based on double-forming head
  • Rapid forming method based on double-forming head
  • Rapid forming method based on double-forming head

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Embodiment 1

[0046] This embodiment is the application of the method of the present invention in the field of SLA. Using the method of the present invention, laser emitters with two different frequencies of low-light and ultraviolet light can be used to cooperate to cure the interior of the solid part with ultraviolet light, improve work efficiency, and achieve low-light curing. The surface improves the precision, which not only meets the current demand for precision, but also improves work efficiency, and can also reduce the cost of mechanical equipment.

[0047] In this embodiment, the rapid prototyping method based on double forming heads is taken as an example, which is layered first and then partitioned. The specific steps are as follows:

[0048] (1) Firstly, the 3D solid model is constructed by 3D solid modeling software, and then the 3D solid model is output in STL file format. The STL file is a file format that uses triangular patches to represent the 3D solid model. It is surround...

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Abstract

The invention relates to a rapid forming method based on a double-forming head. The method comprises the following steps that (1) a three-dimensional solid model is built, and a model data file is output; (2) the model data file is recognized and analyzed through a software program, hierarchical processing is carried out, and then partition processing is carried out or partition processing is carried out, then hierarchical processing is carried out, and discrete two-dimensional layer information is obtained; (3), through the path planning process, a scanning path of the obtained discrete two-dimensional layer information is planned, and according to scanned outline information, forming head scanning paths with two kinds of precision can be respectively planned; (4) according to the outline information of each layer of scanning, a conventional precision forming head needle rapidly performs filling on the interior, a high-precision forming head needle performs high-precision filling on the surface of the outline, and the filling manufacturing work of each layer can be jointly completed by the conventional precision forming head needle and the high-precision forming head needle; (5) layer-by-layer printing is carried out; (6) the working process of the step (4) and the working process of the step (5) are repeated until all printing work is completed, and a workpiece is taken out; (7) aftertreatment is carried out on the taken-out workpiece.

Description

technical field [0001] The invention relates to rapid prototyping technology, in particular to a rapid prototyping method based on double forming heads. Background technique [0002] The basic principle of rapid prototyping is to collect the three-dimensional structure information of related objects according to the hierarchical accumulation method, model the data, and perform layered decomposition to form respective data files by layer, that is, a series of two-dimensional layer data; and then The processing path is reversely established according to different forming processes; finally, a three-dimensional product entity is manufactured layer by layer through a computer-aided manufacturing program (CAD) according to a predetermined processing program. [0003] The precision of rapid prototyping parts refers to the error between the processed part and the original three-dimensional model, mainly including size error, shape error and surface error. Existing rapid prototypin...

Claims

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Application Information

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IPC IPC(8): B29C67/00
Inventor 朱东彬曲云霞段国林王腾飞
Owner HEBEI UNIV OF TECH
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