ICALEO 2011 Paper #603 (Study on Laser Brazing Characteristics of Dissimilar Metals)

Study on Laser Brazing Characteristics of Dissimilar Metals
Authors:
SookHwan Kim, Research Institute of Industrial Science of Technology; Pohang South Korea
Y. Norman Zhou, University of Waterloo; Waterloo Canada
Mok Young Lee, Research Institute of Industrial Science of Technology; Pohang South Korea
LiQun Li, Harbin Institute of Technology; Harbin Peoples Republic of China
Ali Nasiri, University of Waterloo; -
Presented at ICALEO 2011

Laser brazing between commercially Al coated steel and Mg alloy(AZ31) has been carried out in the Mg-based and Al-based insert metals.
The brazing bonds have been evaluated using light microscopy, micro hard...

ICALEO 2011 Paper #602 (Laser Autogenous Brazing - A New Method for Joining Dissimilar Metals)

Laser Autogenous Brazing – A New Method for Joining Dissimilar Metals
Authors:
Gen Satoh, Columbia University; New York NY USA
Y. Lawrence Yao, Columbia University; New York NY USA
Presented at ICALEO 2011

The joining of dissimilar metals is a critical process for the future development and evolution of medical devices which would enable the selective use of the unique properties exhibited by biocompatible materials such as stainless steel and titanium, as well as shape memory materials such as NiTi to locally tailor the properties of implantable medical devices. Many joints between dissimilar metals, however, suffer from significant intermetallic formation which causes them to f...

ICALEO 2011 Paper #601 (Laser Penetration Brazing of Dissimilar Alloys)

Laser Penetration Brazing of Dissimilar Alloys
Authors:
Rongshi Xiao, Beijing University of Technology; - Peoples Republic of China
Peng Dong, Beijing University of Technology; Beijing Peoples Republic of China
Presented at ICALEO 2011

The requirements on light-weight structure, structure-function integration and low-cost manufacturing have brought in a rising interest in joining of dissimilar alloys. To join the dissimilar alloys with considerable difference in melting point and metallurgical properties, an approach, namely laser penetration brazing (LPB), has been proposed. The substrate with lower melting point is penetratingly melted by the focused laser beam, and the melted me...

ICALEO 2011 Paper #508 (Power Adjustment in Laser Cladding with Scanning Optics)

Power Adjustment in Laser Cladding with Scanning Optics
Authors:
Iikka Pekkarinen, Lappeenranta University of Technology; Lappeenranta Finland
Veli Kujanpää, Lappeenranta University of Technology; Lappeenranta Finland
Antti Salminen, Lappeenranta University of Technology; Lappeenranta Finland
Presented at ICALEO 2011

Laser cladding with fiber laser using scanning optics is a relatively new way of laser cladding. Modern oscillating scanners enable laser power adjustment according to scanning direction. This is a versatile tool for making process more stable as well as modifying the shape of clad bead. Laser cladding was made using 5kW IPG fiber laser with ILV- oscill...

ICALEO 2011 Paper #507 (Advantages of Laser Metal Deposition by using Zoom Optics and MWO (Modular Welding Optics))

Advantages of Laser Metal Deposition by using Zoom Optics and MWO (Modular Welding Optics)
Authors:
Chen Hong, Lehrstuhl fur Lasertechnik, RWTH Aachen University; Aachen Germany
Bernd Burbaum, Lehrstuhl fur Lasertechnik, RWTH Aachen University; Aachen Germany
Andres Gasser, Fraunhofer Institut fur Lasertechnik; Aachen Germany
Ingomar Kelbassa, Lehrstuhl fur Lasertechnik, RWTH Aachen University, Fraunhofer Institut fur Lasertechnik; Aachen Germany
Presented at ICALEO 2011

Laser Metal Deposition (LMD) or laser cladding using powder additive materials has been successfully introduced into industry for the use in wear and corrosion applications and as repairs ...

ICALEO 2011 Paper #506 (Induction Assisted Laser Cladding for Higher Deposition Rates)

Induction Assisted Laser Cladding for Higher Deposition Rates
Authors:
Aravind Jonnalagadda, Fraunhofer USA Center for Coatings and Laser Applications; Plymouth MI USA
Siegfried Scharek, Fraunhofer IWS; Dresden Germany
Craig Bratt, Fraunhofer USA Center for Coatings and Laser Applications; Plymouth MI USA
David Albert, Fraunhofer USA Center for Coatings and Laser Applications; Plymouth MI USA
Tobias Weitzer, Fraunhofer USA Center for Coatings and Laser Applications; Plymouth MI USA
Presented at ICALEO 2011

Laser cladding process has achieved a wide level of acceptance in recent years from various sectors of industry due to its minimal heat inp...

ICALEO 2011 Paper #505 (Development of a Model for Prediction of Material Properties of Laser Cladded Inconel 718 As Related to Porosity in the Bulk Material)

Development of a Model for Prediction of Material Properties of Laser Cladded Inconel 718 As Related to Porosity in the Bulk Material
Authors:
Johannes Witzel, Chair for Laser Technology, RWTH Aachen University; Aachen Germany
Thomas Schopphoven, Fraunhofer Institute for Laser Technology; Aachen Germany
Andrés Gasser, Fraunhofer Institute for Laser Technology; Aachen Germany
Ingomar Kelbassa, Chair for Laser Technology, RWTH Aachen University, Fraunhofer Institute for Laser Technology; Aachen
Presented at ICALEO 2011


High value jet engine components such as compressor blades or BLade Integrated DiSKS (BLISKS) are manufactured by time and cost-prohibiti...

ICALEO 2011 Paper #504 (Effects of Melt Pool Size on Transient and Residual Stress in DMD Process)

Effects of Melt Pool Size on Transient and Residual Stress in DMD Process
Authors:
Hyung Min Chae, NSF Center for Lasers and Plasmas in Advanced Manufacturing, Department of Mechanical Engineering; Ann Arbor MI USA
Jyoti Mazumder, NSF Center for Lasers and Plasmas in Advanced Manufacturing, Department of Mechanical Engineering, University of Michigan at Ann Arbor; -
Presented at ICALEO 2011

A self-consistent transient 3D model is developed to predict thermal behavior in Direct Metal Deposition (DMD) process, and the obtained results from the numerical model are used to predict transient and residual stresses with a commercial software package ABAQUS. Temperature field and stress f...

ICALEO 2011 Paper #503 (Potential Application and Certification of Laser Cladding Technology for Repair of Ageing Aircraft Components)

Potential Application and Certification of Laser Cladding Technology for Repair of Ageing Aircraft Components
Authors:
Qianchu Liu, Defence Science and Technology Organisation (DSTO), Defence Materials Technology Centre (DMTC); Fishermans Bend Australia
Milan Brandt, RMIT University, Defence Materials Technology Centre (DMTC); Bundoora Australia
Madabhushi Janardhana, Aircraft Structural Integrity Section, DGTA, Royal Australian Air Force (RAAF); Laverton Australia
Ryan Cottam, Swinburne University of Technology, Defence Materials Technology Centre (DMTC); Melbourne Australia
Neil Matthews, Rosebank Engineering Pty Ltd., Defence Materials Technology Centre (DMT...

ICALEO 2011 Paper #502 (Additive Manufacturing of a Blade-Integrated Disk by Laser Metal Deposition )

Additive Manufacturing of a Blade-Integrated Disk by Laser Metal Deposition
Authors:
Johannes Witzel, RWTH Aachen University; Aachen Germany
Johannes Schrage, RWTH Aachen University; Aachen Germany
Andres Gasser, Fraunhofer Institute for Laser Technology ILT; Aachen Germany
Ingomar Kelbassa, Fraunhofer Institute for Laser Technology ILT, RWTH Aachen University; Aachen Germany
Presented at ICALEO 2011

Currently, high value Class 1 jet engine components such as BLISKs (Blade-Integrated diSKs) are manufactured by time and cost-prohibitive conventional techniques, such as five-axis milling, linear friction welding and electro chemical machining. The investiga...