Precision lost wax casting technology based on selective laser powder sintering 3D printing

A 3D printing, laser powder technology, applied in manufacturing tools, casting molding equipment, casting molds, etc., can solve problems such as difficulty in ensuring the quality and stability of cast metal parts, increasing process complexity, and easy deformation of prototype parts. Product development efficiency, shortening R&D cycle and saving R&D cost

Inactive Publication Date: 2016-03-30
HUST WUXI RES INST +1
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

However, the traditional 3D printing-based precision casting process still has many shortcomings. For example, for different types of prototypes, it is necessary to add supports of different specifications, which increases the difficulty of printing and the prototypes are easy to deform, which affects casting efficiency and wastes materia

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  • Precision lost wax casting technology based on selective laser powder sintering 3D printing
  • Precision lost wax casting technology based on selective laser powder sintering 3D printing
  • Precision lost wax casting technology based on selective laser powder sintering 3D printing

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Embodiment Construction

[0033] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the associated drawings. Preferred embodiments of the invention are shown in the accompanying drawings. However, the present invention can be embodied in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field of the invention. The terms used herein in the description of the present invention are for the purpose of describing specific embodiments only, and are not intended to limit the present invention. As used herein, the term "and / or" includes any and all combinations of one or more of the associated ...

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Abstract

The invention discloses a precision lost wax casting technology based on selective laser powder sintering 3D printing. The precision lost wax casting technology comprises the following steps that S101, a target part is subjected to optimal design of a CAD casting technology; S102, selective laser powder sintering 3D printing forming is carried out; and S103, silica sol/water glass precision investment casting is carried out. A wax mold of the part can be fast manufactured without molds, the metal part is fast manufactured, fast manufacturing of complex parts can be achieved, and integration, automation and fastness in the precision casting technology process can be achieved; and the development period of new products are greatly shortened, development cost is reduced, and the precision lost wax casting technology is especially suitable for production of single small-batch complex castings and trial-manufacturing of new products.

Description

technical field [0001] The invention relates to a casting process, in particular to a precision wax pattern casting process based on selective laser powder sintering 3D printing. Background technique [0002] 3D printing technology is based on the principle of layer-by-layer accumulation of discrete materials. According to the three-dimensional CAD model of the product, it is a digital manufacturing technology that quickly "prints" product prototypes or parts. It integrates computer software, materials, machinery, control, network information, etc. Systematic and comprehensive technology of subject knowledge. 3D printing changes "subtractive material" processing into "three-dimensional printing", turns three-dimensional entities into two-dimensional planes, reduces manufacturing complexity, and frees designers from the constraints of traditional craftsmanship and manufacturing resources, focusing on product form creativity and functional innovation. Under the concept of "de...

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Application Information

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IPC IPC(8): B22C9/04B22C7/02B33Y10/00
CPCB22C9/04B22C7/02
Inventor 丁劲锋周浪李汉兵安升辉褚饶王瑞彪马贵东黄博
Owner HUST WUXI RES INST
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