• 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

  • PICALO 2008 Paper #P102 (Effects of Rare Earth Oxide on the Nucleation of Carbide Particles in Laser Cladded Mmcp Coating)

    Effects of Rare Earth Oxide on the Nucleation of Carbide Particles in Laser Cladded Mmcp Coating
    Authors:
    Caofeng Wu, Tsinghua University, Dept of Mechanical Engineering; Beijing Peoples Republic of China
    Mingxing Ma, Tsinghua University, Dept of Mechanical Engineering; Beijing Peoples Republic of China
    Honjun Zhang, Tsinghua University; Beijing Peoples Republic of China
    Minlin Zhong, Tsinghua University; Beijing Peoples Republic of China
    Wenjin Liu, Tsinghua University, Dept of Mechanical Engineering; Beijing Peoples Republic of China
    Weiming Zhang, Tsinghua University; Beijing Peoples Republic of China
    Presented at PICALO 2008

    P...

    $28.00

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