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Hydraulic valve block lightweight design method based on selective laser melting

A selective laser melting and lightweight design technology, applied in the field of additive manufacturing, can solve problems such as efficiency loss, flow stagnation, and sharp right-angle turns, and achieve the goals of reducing time cost, improving corrosion resistance, reducing pressure loss and energy consumption Effect

Inactive Publication Date: 2019-12-31
ZHEJIANG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Inherent limitations of conventional manufacturing can lead to sharp quarter turns between adjacent runners, resulting in flow stagnation, which is a major cause of efficiency loss

Method used

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  • Hydraulic valve block lightweight design method based on selective laser melting
  • Hydraulic valve block lightweight design method based on selective laser melting
  • Hydraulic valve block lightweight design method based on selective laser melting

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Embodiment Construction

[0037] Regarding the aforementioned and other technical contents, features and effects of the present invention, they will be further described below in conjunction with the accompanying drawings. The hydraulic valve block lightweight design method based on selective laser melting provided by the present invention mainly includes the following steps (such as figure 1 shown).

[0038] Taking a specific design case as an example, the requirement is to optimize the additive manufacturing design of the traditional hydraulic valve block (material 45 steel) to ensure that the hydraulic principle, interface, installed valve parts, and functions of the valve block remain unchanged; the material can be changed; the requirements Compared with the valve block of the traditional processing method, after lightweight manufacturing, the weight is reduced by more than 50%, and the volume is reduced by more than 50%, but the functional principle remains the same, and the performance is not redu...

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Abstract

The invention discloses a hydraulic valve block lightweight design method based on selective laser melting. The method comprises the following steps that (1) material selection is carried out; (2) a single flow channel of a hydraulic valve block is subjected to trial-manufacturing, and therefore the wall thickness and section shape of the flow channel are determined; (3) boundary constraint conditioners are set; (4) the hydraulic logic of the hydraulic valve block is extracted; (5) modeling and optimization design of a main work flow channel are carried out; (6) local structure modeling and optimization design are carried out; (7) selective laser melting forming process parameters are regulated and controlled; (8) a hydraulic valve block model is subjected modeling, form manufacturing andaftertreatment operation; and (9) forming quality inspection and performance testing of the formed valve block are carried out. According to the hydraulic valve block lightweight design method based on selective laser melting, the technological process of hydraulic valve block manufacturing and detecting is redesigned through selective laser melting, the weight of the hydraulic valve block is reduced greatly through the additive manufacturing technology, the flowing performance of fluid is improved, the power-to-weight ratio is increased, and the hydraulic valve block lightweight design methodhas god application prospects on the aspects of aerospace and war industry.

Description

technical field [0001] The invention belongs to the field of additive manufacturing and is applied in the field of hydraulic pressure. More specifically, it relates to a lightweight design method for a hydraulic valve block based on selective laser melting. Background technique [0002] Additive Manufacturing (AM) technology, that is, 3D printing technology, is different from the traditional "subtractive manufacturing" processing methods such as turning, milling, planing and grinding, which rely on the combination of multiple processes to manufacture parts. It is based on the principle of discrete-superposition forming, using CAD three-dimensional After the model is generated in STL format, it is imported into the relevant 3D printer software, and the computer is used to control the accumulation of printing materials layer by layer, and finally form a three-dimensional entity at one time. Selected laser melting technology (SLM) is a kind of additive manufacturing technology....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22F3/105B33Y10/00
CPCB33Y10/00B22F10/00B22F10/36B22F10/28Y02P10/25
Inventor 祝毅汪帅杨华勇
Owner ZHEJIANG UNIV
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