Pure titanium powder forming method based on selected area laser melting technology

A technology of selective laser melting and forming method, applied in the direction of improving process efficiency, improving energy efficiency, etc., can solve the problems of difficult use environment of parts, low flexibility, affecting the life of parts, etc., to achieve good dynamic performance and high flexibility. Effect

Inactive Publication Date: 2014-08-06
GUANGZHOU INST OF ADVANCED TECH CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, most of the processing parameters of the current powder molding process based on selective laser melting technology are fixed processing parameters provided by the manuf...

Method used

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  • Pure titanium powder forming method based on selected area laser melting technology
  • Pure titanium powder forming method based on selected area laser melting technology
  • Pure titanium powder forming method based on selected area laser melting technology

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0074] This embodiment introduces the process of the present invention for preparing pure titanium porous structure parts.

[0075] The present invention adopts a 3D printing equipment model SLM-125HL produced by German SLM Solutions Gmbh, and the used supporting software is SLM AutoFab MCS1.1 or SLM AutoFab64 1.8 software that comes with the 3D printing equipment.

[0076] The process of the present invention for preparing pure titanium porous structure parts includes:

[0077] S1. Establish a three-dimensional model of the porous structure to be prepared in the computer.

[0078] According to the actual structure of the parts to be prepared, solidworks, UG, ProE and other engineering drawing software are used to design and build a three-dimensional model of the actual porous structure, and save it in STL format. Among them, the parameters of the three-dimensional model are based on the actual parameters of the porous structure, including the shape and size of the external whole, the...

Embodiment 2

[0088] This embodiment introduces the specific process of obtaining the optimal processing parameters of pure titanium powder molding by using the optimization comparison method.

[0089] The invention first constructs a cube model structure with a unified structure, and then compares and calculates according to the significant technical effects produced by different changed processing parameters.

[0090] When performing comparative observation and calculation, the present invention uses the coordinate measuring instrument Quick View 200 to observe the surface scanning track of the model, and by processing the constructed cubic model, the parts after removing the support structure and smoothing the bottom surface are placed on the platform of the coordinate measuring instrument , And select the magnification 1.5 to 2 times to observe the surface melt channel state clearly and comprehensively.

[0091] The comparison of the significant technical effects produced by the present invent...

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Abstract

The invention discloses a pure titanium powder forming method based on a selected area laser melting technology. The method comprises the steps that A. an optimizing comparison method is used for obtaining the optimum machining parameters of pure titanium powder forming; B. a three-dimensional model of a part structure which needs to be manufactured is established; C. the established three-dimensional model is subjected to layering preprocessing; D. the obtained optimum machining parameters are used as 3D printing parameters, the three-dimensional model after layering preprocessing is subjected to layering processing, and accordingly printing files needed by 3D printing are generated; and E. the generated printing files are guided into 3D printing equipment, and pure titanium powder is used as forming materials for 3D printing. The method is based on the selected area laser melting technology, metal parts of various structures can be accurately manufactured according to practical needs, the optimizing comparison method is used for obtaining the optimum machining parameters of pure titanium powder forming, different optimum machining parameters can be set according to practically-needed mechanical property situations, flexibility is high, and dynamic performance is good. The pure titanium powder forming method can be widely used in the field of automation control.

Description

Technical field [0001] The invention relates to the field of automatic control, in particular to a pure titanium powder molding method based on selective laser melting technology. Background technique [0002] Because of its excellent mechanical properties and biocompatibility, titanium and its alloys are widely used in clinical medicine bone repair, bone implantation and corresponding processing and manufacturing fields. However, traditional titanium and titanium alloy processing techniques generally have many influencing factors, complicated processes, difficult to accurately process the internal structure, difficulty in one-time net processing, and difficulty in obtaining uniform processing effects. However, the use of selective laser melting technology can better overcome the above problems, and it has flexible manufacturing characteristics that any other processing method cannot match. However, the current powder molding process based on selective laser melting technology h...

Claims

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Application Information

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IPC IPC(8): B22F3/105
CPCY02P10/25
Inventor 张春雨任云鹏郑渚孙学通陈贤帅陈建宇戚留举
Owner GUANGZHOU INST OF ADVANCED TECH CHINESE ACAD OF SCI
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