Research of Selective Laser Melting Rapid Prototyping System

2013 ◽  
Vol 433-435 ◽  
pp. 2188-2191
Author(s):  
Qun Qin ◽  
Guang Xia Chen
Keyword(s):  
Selective Laser Melting ◽  
Design Method ◽  
Software System ◽  
Gas Purification ◽  
Laser Melting ◽  
Control Software ◽  
Stl File ◽  
Hardware System ◽  
Purification System ◽  
Rapid Prototyping System

The primary goal of this research is the development of SLM (selective laser melting) system, which including hardware system and software system (associated control software) .The hardware system is consisted of an YLR-200 Yb-fiber laser, a pre-place powder device, a K100 gas purification system and a CNC system. The software system can be divided into several modules such as STL file loading and viewing, model slicing, fill path generation and process controlling. The pre-place powder device is the most key part of SLM hardware, and its construction and design method were described in this article. The thickness of slice should be adjusted easily and controlled in the range of 0.01~1.0mm by the system, and laser scan velocity can attain 7m/s, and some examples are shown in this article.

Fabrication of Removable Partial Denture Framework by Selective Laser Melting

2011 ◽  
Vol 317-319 ◽  
pp. 174-178 ◽  
Author(s):  
Guang Xia Chen ◽  
Xiao Yan Zeng ◽  
Ze Min Wang ◽  
Kai Guan ◽  
Chang Wen Peng
Keyword(s):  
Selective Laser Melting ◽  
Powder Coating ◽  
Gas Purification ◽  
Laser Melting ◽  
Removable Partial Denture ◽  
Partial Denture ◽  
Optical Scanner ◽  
Single Piece ◽  
Purification System ◽  
Novel Method

The removable partial denture framework is very complex in shape with many curved surfaces, which is a very important assistant tool in prosthodontics. Generally, frameworks are fabricated by single piece basing on mould by traditional cast technology, which has many shortages of multiple steps, time cost and defects such as sand adheres, inner holes, cracks and segregation etc. As a novel method, selective laser melting (SLM) rapid prototyping technology has the advantages of short manufacturing cycle, high precision and flexibility, simple fabrication arts, which can be used to replace the conventional cast technology in the areas of prosthodontics. A SLM system was designed and developed by ourselves, which is consisted of an Yb-fiber laser, an optical scanner, a powder coating device, a gas purification system and a control system, the process parameters were investigated systematically and optimized, finally fabricated removable partial denture frameworks with stainless steel and titanium materials successfully by using the SLM system under optimized parameters. The tests showed that the frameworks have an average dimension precision of ±0.172mm. The wearing experiments on the plaster mouth molds demonstrated the removable partial denture frameworks fabricated by SLM can be fully applied to clinic after some post- processing procedures.

Research of Metallic Part Fabrication by Selective Laser Melting

2011 ◽  
Vol 120 ◽  
pp. 284-287
Author(s):  
Guang Xia Chen ◽  
Kai Guang
Keyword(s):  
Selective Laser Melting ◽  
Powder Coating ◽  
Software System ◽  
Laser Melting ◽  
Metal Part ◽  
Removable Partial Denture ◽  
Display Module ◽  
Optical Scanner ◽  
Purification System ◽  
Processing Control

The primary goal of this research is the fabrication and measure of metal part made by SLM (selective laser melting) system. The SLM system is separated into two sections which are hard system and software system. The hard system is consisted of an Yb-fiber laser, an optical scanner, a powder coating device, a gas purification system and a CNC system; the software system is mainly consisted of CAD model display module, slicing and path layout module and processing control module. A removable partial denture framework was fabricated by this SLM system using stainless steel. A method of metal part precision with complex shape is that using reverse engineering and the average tolerance of metal part fabricated by SLM is ±0.172mm by using this method. The experimental results showed that SLM system developed by us can settle for the need of laser rapid prototyping in metal part fabrication.

Personalized femoral component design and its direct manufacturing by selective laser melting

2016 ◽  
Vol 22 (2) ◽  
pp. 330-337 ◽  
Author(s):  
Changhui Song ◽  
Yongqiang Yang ◽  
Yunda Wang ◽  
Jia-kuo Yu ◽  
Di Wang
Keyword(s):  
Corrosion Resistance ◽  
Selective Laser Melting ◽  
Femoral Component ◽  
Computer Aided Design ◽  
Design Method ◽  
Laser Melting ◽  
Content Type ◽  
Computer Aided ◽  
Biological Corrosion ◽  
Aided Design

Purpose This paper aims to achieve rapid design and manufacturing of personalized total knee femoral component. Design/methodology/approach On the basis of a patient’s bone model, a matching personalized knee femoral component was rapidly designed with the help of computer-aided design method, then manufactured directly and rapidly by selective laser melting (SLM). Considered SLM as manufacturing technology, CoCrMo-alloyed powder that meets ASTM F75 standard is made of femoral component under optimal processing parameters. The feasibility of SLM forming through conducting experimental test of mechanical properties, surface roughness, biological corrosion resistance was analyzed. Findings The result showed that the tensile strength, yield strength, hardness and biological corrosion resistance of CoCrMo-alloyed personalized femoral component fulfill knee joint prosthesis standard through post-processing. Originality/value Traditional standardized prosthesis implantation manufacturing approach was changed by computer-aided design and personalized SLM direct manufacturing, and provided a new way for personalized implanted prosthesis to response manufacturing rapidly.

scholarly journals A lightweight and support-free design method for selective laser melting

2016 ◽  
Vol 90 (9-12) ◽  
pp. 2943-2953 ◽  
Author(s):  
Zhonghua Li ◽  
David Zhengwen Zhang ◽  
Peng Dong ◽  
Ibrahim Kucukkoc
Keyword(s):  
Selective Laser Melting ◽  
Design Method ◽  
Laser Melting

MANUFACTURING NOVEL HEAT TRANSFER DEVICES BY SELECTIVE LASER MELTING

Equipment ◽  
2006 ◽  
Author(s):  
S. Tsopanos ◽  
M. Wong ◽  
I. Owen ◽  
C. J. Sutcliffe
Keyword(s):  
Heat Transfer ◽  
Selective Laser Melting ◽  
Laser Melting

Properties of Ti-6Al-4V titanium alloys obtained by selective laser melting

2019 ◽  
pp. 46-57
Author(s):  
M.A. Kaplan ◽  
◽  
М.A. Smirnov ◽  
A.A. Kirsankin ◽  
M.A. Sevostyanov ◽  
...  
Keyword(s):  
Titanium Alloys ◽  
Selective Laser Melting ◽  
Laser Melting

Development of hardware and software system for access control and management

Ergodesign ◽  
2020 ◽  
Vol 2020 (1) ◽  
pp. 19-24
Author(s):  
Igor Pestov ◽  
Polina Shinkareva ◽  
Sofia Kosheleva ◽  
Maxim Burmistrov
Keyword(s):  
Access Control ◽  
High Mobility ◽  
Raspberry Pi ◽  
Software System ◽  
Hardware System ◽  
Software And Hardware ◽  
Arduino Uno ◽  
Control And Management ◽  
Hardware Platforms ◽  
Hardware And Software System

This article aims to develop a hardware-software system for access control and management based on the hardware platforms Arduino Uno and Raspberry Pi. The developed software and hardware system is designed to collect data and store them in the database. The presented complex can be carried and used anywhere, which explains its high mobility.

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