ICALEO 2007 Paper #1902 (Additive Manufacturing and Repair: Where Do Lasers Fit In?)

Additive Manufacturing and Repair: Where Do Lasers Fit In?
Authors:
James Sears, South Dakota School of Mines & Technology; Rapid City SD USA
Presented at ICALEO 2007

Lasers are currently being used in many facets of Additive Manufacturing and repair. Cladding is probably the most wide spread use of lasers in additive manufacturing. There is also a growing use of laser technology for repair applications. Laser additive manufacturing for directly building complete structures has been limited but also seems to be growing. Lasers have been the choice when automation and low heat input are required. So how does laser technology compare to other methods (e.g., electron beam, plasma transferred a...

ICALEO 2007 Paper #1904 (Experience with Shipyard Installation of a Hybrid Pipe Welding System)

Experience with Shipyard Installation of a Hybrid Pipe Welding System
Authors:
Edward Reutzel, Arl, the Penn State University; State College PA USA
Jay Tressler, Arl, the Penn State University; State College PA USA
Ludwig Kern, Arl, the Penn State University; State College PA USA
Michael Sullivan, General Dynamics Nassco; San Diego CA USA
Presented at ICALEO 2007

Laser-Gas Metal Arc (GMA) hybrid welding is fast making the transition from laboratory to production, in industries as diverse as shipbuilding to automobile manufacture. For the past 3 years, our team has striven to both develop a hybrid welding process for steel pipe, and to specify, build, and ...

ICALEO 2007 Paper #1905 (Advances in Laser-Deposition Equipment and Capabilities)

Advances in Laser-Deposition Equipment and Capabilities
Authors:
Richard Grylls, Optomec; Albuquerque NM USA
Thierry Marchione, Optomec Inc.; Albuerque NM USA
David Keicher, Optomec Inc.; Albuerque NM USA
Presented at ICALEO 2007

Laser Deposition techniques are gaining wider acceptance within manufacturing industries for both repair and rapid manufacture of metal components. The Laser Engineered Net Shaping (LENS®) process is one of the leading techniques in this field. Multiple LENS systems are now employed at DoD and other facilities, repairing a variety of high-performance components. In this role, LENS can be employed to shorten overhaul cycle times, and in so...

ICALEO 2007 Paper #1906 (Novel Machine System for Simultaneous Heat Treatment with Dynamic Beam Shaping)

Novel Machine System for Simultaneous Heat Treatment with Dynamic Beam Shaping
Authors:
Steffen Bonss, Fraunhofer IWS; Dresden Germany
Frank Tietz, Fraunhofer IWS; Dresden Germany
Jan Hannweber, Fraunhofer IWS; Dresden Germany
Marko Seifert, Fraunhofer IWS; Dresden Germany
Stefan Kuehn, Fraunhofer IWS; Dresden Germany
Udo Karsunke, Fraunhofer IWS; Dresden Germany
Berndt Brenner, Fraunhofer IWS; Dresden Germany
Eckhard Beyer, Fraunhofer IWS; Dresden Germany
Presented at ICALEO 2007

Laser beam hardening has been established during the last years as a complementary technology for local heat treatment tasks a...

ICALEO 2007 Paper #1907 (Process Control in Laser Manufacturing - Dream or Reality?)

Process Control in Laser Manufacturing– Dream or Reality?
Authors:
Michael Schmidt, Bayerisches Laserzentrum GmbH; Erlangen Germany
Florian Albert, Bayerisches Laserzentrum GmbH; Erlangen Germany
Thomas Frick, Bayerisches Laserzentrum GmbH; Erlangen Germany
Alexander Grimm, Bayerisches Laserzentrum GmbH; Erlangen Germany
Christian Kägeler, Bayerisches Laserzentrum GmbH; Erlangen Germany
Matthias Rank, Bayerisches Laserzentrum GmbH; Erlangen Germany
Katja Tangermann-Gerk, Bayerisches Laserzentrum GmbH; Erlangen Germany
Presented at ICALEO 2007

Looking at the status of control techniques in laser manufacturing proces...

ICALEO 2007 Paper #2001 (High Chromium Coating by Laser Deposition of IN 690 for Repairing Nuclear Power Plant Components)

High Chromium Coating by Laser Deposition of IN 690 for Repairing Nuclear Power Plant Components
Authors:
Minlin Zhong, Tsinghua University; Beijing Peoples Republic of China
Qian Hao, Tsinghua Univ.; Beijing Peoples Republic of China
Renjie Zhu, Tsinghua University; Beijing Peoples Republic of China
Wenjin Liu, Tsinghua University; Beijing Peoples Republic of China
Hongjun Zhang, Tsinghua University; Beijing Peoples Republic of China
Presented at ICALEO 2007

Early nuclear power plant components were normally made with Stainless Steel ANSI 316L due to its good anticorrosion property before they are replaced by In 600 or In 690 alloys in recent...

ICALEO 2007 Paper #2003 (Automated Laser Fabrication of High Performance Saw Blades)

Automated Laser Fabrication of High Performance Saw Blades
Authors:
Christ Prakash Paul, University of Waterloo; Waterloo, ON ON Canada
Mehrdad Iravani, University of Waterloo; Waterloo ON Canada
Amir Khajepour, University of Waterloo; Waterloo ON Canada
Stephen Corbin, University of Waterloo; Waterloo ON Canada
Presented at ICALEO 2007

ALFa is an emerging computer-aided manufacturing technology that uses a laser beam to melt and deposit the injected powder to fabricate near net shape 3-D components and add delicate features onto the existing components with short turn around time in a layer-by-layer fashion by metal deposition. Recently, we have extended ...

ICALEO 2007 Paper #2004 (Microstructure and Properties of Plasma and Laser Consolidated Chromium Oxide Coating)

Microstructure and Properties of Plasma and Laser Consolidated Chromium Oxide Coating
Authors:
Jovan Stanisic, University of Michigan; Dearborn MI USA
Pravansu Mohanty, University of Michigan; Dearborn MI USA
Jyoti Mazumder, University of Michigan; Ann Arbor MI USA
Presented at ICALEO 2007

Plasma sprayed chromium oxide coatings have been widely used due to their high corrosion and wear resistance. Although plasma spray process is economical to produce coatings due to higher deposition rates, the coatings are inherently porous and lack metallurgical bonding with the substrate. The focus of this work is to investigate the feasibility as well as characterize the resulting...

ICALEO 2007 Paper #2005 (Microstructures and Wear Resistance of Laser Surface Alloyed NiTi with High Mo Concentration)

Microstructures and Wear Resistance of Laser Surface Alloyed NiTi with High Mo Concentration
Authors:
H.C. Man, The Hong Kong Polytechnic University; Kowloon Hong Kong
Ng Ka Wai, The Hong Kong Polytechnic University; Shatin Hong Kong
T.M. Yue, The Hong Kong Polytechnic University; Kowloon Hong Kong
Presented at ICALEO 2007

Nickel Titanium alloys are a unique class of materials which exhibit shape memory and superelastic properties. The interest in this material for medical applications, such as surgical implants, has been steadily growing in recent years. In the present study, NiTi (55%Ni-45%Ti) SMA were surface alloyed with molybdenum using a continuous wave Nd-YAG la...

ICALEO 2007 Paper #201 (What is the Best Choice for Laser Material Processing- Rod, Disk, Slab or Fiber?)

What is the Best Choice for Laser Material Processing- Rod, Disk, Slab or Fiber?
Authors:
Erwin Steiger, Erwin Steiger LaserService; Maisach Germany
Presented at ICALEO 2007

Laser material processing for industrial manufacturing applications is today a widely spread procedure for welding, cutting, marking and micro-machining. With the invent of new and alternative laser sources like the fiber laser discussions have emerged which of the solid-state laser systems - rod, disk, slab or fiber - is the best suited for all the known laser procedures. It will be shown on selected laser processed examples that the laser source itself is often not the decisive part for the final results. Material propert...