3D printing cruising missile lightweight design and manufacturing method

A lightweight design, 3D printing technology, applied in the direction of additive manufacturing, process efficiency improvement, energy efficiency improvement, etc., can solve the problems of waste, manufacturing cost, manufacturing time increase, etc., to reduce processing time, reduce weight and manufacturing time Effect

Inactive Publication Date: 2019-02-01
湖南省军合科技有限公司
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

However, if SLM technology is used to directly manufacture traditional parts, its manufacturing cost and manufacturing time will be significantly increased, and it will cause a lot of waste

Method used

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  • 3D printing cruising missile lightweight design and manufacturing method

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Embodiment Construction

[0020] The present invention will be further described in detail by specific examples below. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. Indeed, the invention may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these examples are provided so that this disclosure will satisfy applicable legal requirements.

[0021] A lightweight design and manufacturing method for a 3D printed loitering bomb in this embodiment includes the following steps:

[0022] (1) Collect data on the parts, process the data and fit the model features after the data collection is completed;

[0023] The part structure can be divided into different meta-features. The relatively typical meta-features include plane, (non) regular hole, (non) regular flange, (non) regular surface and so on. The feature classific...

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Abstract

The invention provides a 3D printing cruising missile lightweight design and manufacturing method comprising the steps that (1) data collection is conducted on a part, and treatment and model characteristic fitting are conducted on collected data; (2) reverse reconstruction is conducted on a solid model through a B-Rep method in three-dimensional design software to obtain a three-dimensional digital model of the part; (3) structural performance analysis is conducted on the SLM formed part to verify related performance indexes; (4) on the basis of a constant strength principle, part inner structure redesign is conducted on the reconstructed model through a skin-skeleton structure; and (5) the final lightweight model is used for generating an STL model, an SLI model is generated after part data hierarchy is conducted on the STL model, the SLI model is imported into SLM equipment, corresponding technological parameters are set, and the final lightweight solid part is obtained after machining through selective laser melting forming technology. Through the 3D printing cruising missile lightweight design and manufacturing method, weight and manufacturing time of the SLM formed part can be reduced, the lightweight high-performance aeronautical part is obtained, and meanwhile machining time is reduced.

Description

technical field [0001] The invention relates to the field of high-end equipment manufacturing, specifically a lightweight design and manufacturing method for 3D printed loitering bombs. Background technique [0002] The loitering bomb is a kind of ammunition that uses existing weapons to launch patrol flights in the target area, and can undertake single or multiple tasks such as surveillance, reconnaissance, combat damage assessment, air wireless relay, and target attack. It is also the future development of the ammunition field. an important trend. However, due to the influence of traditional manufacturing methods, it is difficult to realize the lightweight of this type of loitering missile. It is necessary to adopt new manufacturing methods and reconfigure the design of the projectile body based on the manufacturing method in order to realize the lightweight of the projectile body. [0003] The 3D printing technology (also known as additive manufacturing technology AM, A...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22F3/105
CPCB22F10/00B22F10/85B22F10/28Y02P10/25
Inventor 李湘军刘杨
Owner 湖南省军合科技有限公司
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