Method for preparing 316 stainless steel complex thin-wall pipeline through selective laser melting forming technology

A technology of laser selective melting and forming technology, which is applied in the direction of additive manufacturing, improvement of process efficiency, energy efficiency, etc., can solve the problems of affecting product development cycle, increasing research and development costs, and poor consistency of digital and analog, so as to achieve uniform internal organization, Short forming time and good digital-to-model consistency

Inactive Publication Date: 2017-03-15
NANTONG JINYUAN INTELLIGENT TECH CO LTD
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Problems solved by technology

[0003] Traditional technology is used to manufacture 316 stainless steel complex thin-walled pipelines. The main steps are blanking, manual pipe bending, pre-weld trimming, welding assembly, welding, non-destructive testing, repair and wel

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[0026] The present invention will be described in detail below in conjunction with specific embodiments. The following examples will help those skilled in the art to further understand the present invention, but do not limit the present invention in any form. It should be pointed out that for those of ordinary skill in the art, a number of modifications and improvements can be made without departing from the concept of the present invention. These all belong to the protection scope of the present invention.

[0027] The present invention relates to a method for preparing 316 stainless steel complex thin-walled pipelines by using laser selective melting and forming technology, including the following steps:

[0028] Step 1: Use 3D drawing software to construct a 3D digital model of complex thin-walled pipelines;

[0029] Step 2: Use commercial 3D repair software (such as Magics) to repair complex thin-walled pipelines;

[0030] Step 3: Use commercial 3D repair software to analyze the...

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Abstract

The invention provides a method for preparing a 316 stainless steel complex thin-wall pipeline through the selective laser melting forming technology. The method comprises the steps that firstly, a three-dimensional digital model of the complex thin-wall pipeline is constructed; secondly, the three-dimensional digital model is repaired through three-dimensional repairing software; and thirdly, the repaired three-dimensional digital model is sliced through slicing software and converted into two-dimensional slice information, and a machining program file is generated. The method has the beneficial effects that firstly, the time for forming the complex thin-wall pipeline is short through the selective laser melting forming technology, procedures are reduced, and the manufacturing period is shortened; secondly, the quality of the complex thin-wall pipeline formed through the selective laser melting forming technology is high, consistency between the complex thin-wall pipeline and the digital model is good, and the qualification rate is high; and thirdly, the 316 stainless steel complex thin-wall pipeline formed through the method is uniform in inner structure, good in surface quality and excellent in mechanical performance.

Description

technical field [0001] The invention relates to a method for preparing 316 stainless steel complex and thin-walled pipelines by laser selective melting forming technology, which belongs to the technical field of laser selective forming. Background technique [0002] 316 stainless steel is an austenitic stainless steel with good formability, simple preparation, wide sources and low cost. It is characterized by good mechanical properties, high structural strength, good corrosion resistance and atmospheric corrosion resistance. There are a wide range of applications. 316 stainless steel is suitable for the manufacture of complex structural parts, such as complex thin-walled pipelines and other complex structural parts. [0003] Traditional technology is used to manufacture 316 stainless steel complex thin-walled pipelines. The main steps are blanking, manual pipe bending, pre-weld trimming, welding assembly, welding, non-destructive testing, repairing, and weld correction. The...

Claims

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Application Information

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IPC IPC(8): B22F3/105B22F5/12B33Y10/00
CPCB22F5/106B33Y10/00B22F10/00B22F10/36B22F10/32B22F10/28B22F10/64B22F10/80Y02P10/25
Inventor 岳巍丁利姜勇
Owner NANTONG JINYUAN INTELLIGENT TECH CO LTD
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