PICALO 2008 Paper #P115 (The Research on the Parameter Thresholds of Titanium Alloy Laser Welding)
The Research on the Parameter Thresholds of Titanium Alloy Laser Welding
Authors:
Chen Li, Bamtri; Beijing Peoples Republic of China
Gong Shuili, National Key Lab for High Density Beam Processing Technology ; Beijing Peoples Republic of China
Yao Wei, National Key Lab for High Density Beam Processing Technology ; Beijing Peoples Republic of China
Presented at PICALO 2008
The process of laser penetration welding of titanium alloy sheet involves complex reactions among the laser-plasma- material, periodical keyhole opening and closing, and melt pool flowing behavior. This process can be mapped into pool morphology and weld shape. It is well known that the mode of laser w...$28.00
PICALO 2008 Paper #P113 (Experimental Research on Functional Graded Cladding Layer of Titanium Alloy)
Experimental Research on Functional Graded Cladding Layer of Titanium Alloy
Authors:
Fangyou Hu, NAEA ; Qingdao Peoples Republic of China
Presented at PICALO 2008
Titanium alloys are used on aeronautical engine widely. In order to improve the surface properties of titanium alloy part to meet the requirements of fiction and wear properties, a functional graded cladding layer (Ti-FGCL) on Ti600 was successfully carried out by an experimental of laser multi-claddings. Powder mixtures are pre-placed on samples or cladding layer, the main components of Ti, Ni, Al, and Cr3C2 are changed from the bottom layer to top. A 4kw cw CO2 laser is used to clad every layer. SEM and EDAM are used to analyze micr...$28.00
PICALO 2008 Paper #P112 (Application and Performance Evaluation for the New Material in the Industrial Sff System using a Sls Process)
Application and Performance Evaluation for the New Material in the Industrial Sff System using a Sls Process
Authors:
Dong Soo Kim, Korea Institute of Machinery & Materials; Daejeon South Korea
Chung Hwan Kim, Korea Institute Machinery & Materials; Daejeon South Korea
Sung Woo Bae, Korea Institute Machinery & Materials; Daejeon South Korea
Young Kil Bang, Lionchemtech Co.,Ltd; Daejeon South Korea
Byung Oh Choi, Korea Institute Machinery & Materials; Daejeon South Korea
Presented at PICALO 2008
In the solid freeform fabrication (SFF) System using selective laser sintering (SLS), Polyamide-12 powder (below PA-) is currently recognized as gen...$28.00
PICALO 2008 Paper #P111 (Laser Cladding of Ti-Base Composite Coatings on Ti-6Al-4V Substrate)
Laser Cladding of Ti-Base Composite Coatings on Ti-6Al-4V Substrate
Authors:
Wei-fu Wang, Northeastern University; Shengyang Peoples Republic of China
Maocai Wang, Northeastern University; Shengyang Peoples Republic of China
Fengjiu Sun, Northeastern University; Shengyang Peoples Republic of China
Presented at PICALO 2008
With preplaced Ti6Al4V + Cr3C2 powder mixtures, the Ti-base composite coatings with in-suit synthesis TiC were obtained by laser cladding on Ti6Al4V substrate. The effects of the ceramic phase (TiC) and the matrix on microhardness of the coatings were also studied by addition of TiC, Cr and Mo into the coatings respectively. The results showed that, t...$28.00
PICALO 2008 Paper #P110 (Laser Sintering of (K0.5Na0.5Nbo3)-Litao3 Lead-free Ceramics with Novel Piezoelectric Properties)
Laser Sintering of (K0.5Na0.5Nbo3)-Litao3 Lead-free Ceramics with Novel Piezoelectric Properties
Authors:
Lingfei Ji, Institute of Laser Engineering, Beijing University of Technology; Beijing Peoples Republic of China
Xinyu Du, Institute of Laser Engineering, Beijing University of Technology; Beijing Peoples Republic of China
Yijian Jiang, Institute of Laser Engineering, Beijing University of Technology; Beijing Peoples Republic of China
Presented at PICALO 2008
High dense and textured structure are the two important factors to improve the piezoelectric properties of K0.5Na0.5NbO3 (KNN)-based ceramics, a promising lead-free piezoelectric ceramics because of their envir...$28.00
PICALO 2008 Paper #P109 (Investigation in Laser Colorful Marking in Stainless Steel Plate and Ti Plate by Pulsed Fiber Laser)
Investigation in Laser Colorful Marking in Stainless Steel Plate and Ti Plate by Pulsed Fiber Laser
Authors:
Hong-Liang Zhao, Institute of Laser Engineering, Beijing University of Technology; Beijing Peoples Republic of China
Ji-Min Chen, Institute of Laser Engineering, Beijing University of Technology; Beijing Peoples Republic of China
Sonoro Zhao, Institute of Laser Engineering, Beijing University of Technology; Beijing Peoples Republic of China
Libin Zhai, Beijing University of Technology; Beijing Peoples Republic of China
Peng Dong, Beijing University of Technology; Beijing Peoples Republic of China
Xudong, Beijing University of Technology; B...$28.00
PICALO 2008 Paper #P108 (Laser Ablation of Al2O3 Ceramic in Naoh Medium)
Laser Ablation of Al2O3 Ceramic in Naoh Medium
Authors:
Shao Feng, Anhui Institute of Architecture & Industry; Hefei Peoples Republic of China
Yuan Gen-Fu, Anhui Institute of Architecture and Industry; Hefei Peoples Republic of China
Liang Hua-Qi, Anhui Institute of Architecture and Industry; Hefei Peoples Republic of China
Presented at PICALO 2008
In this paper, alumina ceramic samples were ablated with HGW-300 solid laser in sodium hydroxide solution. The influence of technical parameters, such as processing voltage, scanning speed, scanning width repeat frequency and sodium hydroxide concentration , on weight loss of the samples were studied. The morphology and str...$28.00
PICALO 2008 Paper #P107 (Single Mode Fibre Laser Welding of Dissimilar Aerospace Alloys)
Single Mode Fibre Laser Welding of Dissimilar Aerospace Alloys
Authors:
Andrew Pinkerton, The University of Manchester; Manchester Great Britain
Hui-Chi Chen, The University of Manchester; Manchester Great Britain
Lin Li, The University of Manchester; Manchester Great Britain
Presented at PICALO 2008
Preventing the formation of brittle intermetallic compounds and defects or porosity in the fusion zone is a major challenge when welding dissimilar materials. Additionally, differences of physical properties between two joined materials generate thermal expansion mismatch stresses on cooling which means these weaknesses can quickly lead to failure. Welding research has not...$28.00
PICALO 2008 Paper #P106 (Study on the Surface Treatment for Controlling the Aluminum-Lithium Alloy Weld Porosity of Laser Welding)
Study on the Surface Treatment for Controlling the Aluminum-Lithium Alloy Weld Porosity of Laser Welding
Authors:
Chen Li, BAMTRI; Beijing Peoples Republic of China
Gong Shuili, BAMTRI; Beijing Peoples Republic of China
Li Xiaoyan, BJUT; Beijing Peoples Republic of China
Yang Jing, BAMTRI; Beijing Peoples Republic of China
Presented at PICALO 2008
The surface treatment methods were investigated to control the weld porosity of laser welding aluminum-lithium alloy, which were including in caustic washing, acid picking, mechanical polishing with stainless steel brush and laser cleaning in this paper. The effect of parameters of these surface treatment procedu...$28.00
PICALO 2008 Paper #P104 (Study on the Pore Control of 5083 Aluminum Alloy by Dual-beam Laser Welding)
Study on the Pore Control of 5083 Aluminum Alloy by Dual-beam Laser Welding
Authors:
Kai Chen, Institute of Laser Engineering, Beijing University of Technology, ; Beijiing Peoples Republic of China
Rongshi Xiao, Beijing University of Technology; Beijing Peoples Republic of China
Rui Huang, Beijing University of Technology; Beijing Peoples Republic of China
Xudong Zhao, Beijing University of Technology; Beijing Peoples Republic of China
Song Zhang, Beijing University of Technology; Beijing Peoples Republic of China
Presented at PICALO 2008
Dual-beam CO2 laser welding process, the angle of the dual-beam laser is 22°, was used to research the po...$28.00
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