Fabtech AWS Educational Programs

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Each nonmember attendee will receive a two-year complimentary membership in AWS.
The registration fee does not include hotel accommodations. Hotel accommodations are subject to hotel regulations and are the responsibility of the attendee.
As an added benefit, AWS Conference attendees are awarded 1 PDH (Professional Development Hour) for each hour of conference attendance. These PDH’s can be applied toward AWS recertifications and renewals.

Weld Cracking VII “The Heat-Affected Zone” Conference

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Monday, November 16, 2009 • 9:00 AM – 4:00 PM
Chairs: Robert R. Irving and David Farson
Member of AWS, FMA, SME, NAM, or PMA: $345
Nonmembers: $480 • Registration Code: W21
Room N133

The most perplexing problem in the welding industry has to be weld cracking. Back by popular demand, this one-day conference is for those who want or need to get a handle on any weld cracking situation. The 2009 conference will also include networking opportunities to talk to welding cracking experts and others in the industry that face the challenges weld cracking can present.

Program Events

Keynote Address

9:00-9:30 AM
William A. “Bud” Baeslack III, Provost and Executive Vice President, and Professor of Materials Science and Engineering, Case Western Reserve University, and formerly, Dean, College of Engineering, Executive Dean for the Professional Colleges, Professor of Industrial, Welding and Systems Engineering and Professor of Materials Science and Engineering, Ohio State University
The metallurgical origins of weld cracking in such high-performance alloys as nickel-base materials and such high-performance nonferrous alloys as aluminum and titanium, and how those materials compare to weld cracking behavior in conventional and advanced steels.

New Technique Determines Solid-Liquid and Solid-State Phase Transformations During Processing

9:35-10:05 AM
Boian T. Alexandrov, Research Scientist, Welding Engineering Program, Dept. of Industrial, Welding, and Systems Engineering, The Ohio State University
A new technique for in-situ determination of solidification ranges and solid-state phase transformation temperatures in welded joints of various alloy steels, non-ferrous alloys and Ni-base superalloys, and for development of continuous cooling transformation diagrams.

Cracking Problems with Grade 91 and Other Creep-Strength Enhanced Ferritic Steels

10:10 AM -10:40 AM
Jeffrey Henry, President, Energy Solutions Group, LLC
Failure to control the processing steps, and particularly the post-weld heat treat temperature, can substantially increase the risk of brittle fracture and/or stress-corrosion cracking in the weld. Other factors that can promote cracking at the weldment include deficient design (e.g., saddle welded branch connections), improper support of components, and poor choice of filler metal for dissimilar metal combinations.

Measuring Residual Stress Using X-Ray Diffraction

10:45 AM – 11:15 AM
Robert Drake, Lab Sales, Proto Manufacturing Ltd
Residual stresses in weldments can lead to such problems as stress corrosion cracking or even fatigue cracking. But it is often difficult to determine whether heat treatment or shot peening can be used to cure such conditions without prior knowledge of the residual stress state. X-ray diffraction is being used to provide the information needed.

Quality Improvements in Heat Treatment

11:20 AM – 11:45 AM
Gary Lewis, Director of Business Development, Superheat FGH
Advancements in heat-treatment equipment technology, software and process control solutions, with renewed emphasis on shoring-up weld procedures and industry codes, are revolutionizing traditional business models and enhancing quality assurance.

Lunch on your own

11:45 AM – 1:00 PM

Reheat Cracking in Weldments

1:00 PM – 1:30 PM
Jose E. Ramirez, Principal Engineer, Edison Welding Institute
Reheat cracking has been observed in low-alloy steels, stainless steels, and nickel-base super alloys weldments. Understanding the effect of material chemical composition and microstructure, joint design, welding procedures, and post-weld heat treatment conditions on reheat cracking is of paramount importance to obtaining crack-free weldments.

Hot Cracking in Welding of Austenitic Stainless Steels

1:35 PM – 2:05 PM
Damian Kotecki, Damian Kotecki Welding Consultants, Inc.
Focus on solidification cracking, liquation cracking and ductility dip cracking, plus the role of ferrite in preventing hot cracking and means of lessening hot cracking tendencies when ferrite cannot be obtained in the weld metal.

Fracture Mechanics – Operating with Defects

2:10 PM – 2:40 PM
Kyle Koppenhoefer, Principal, AltaSim Technologies
Structural welding defects cannot always be avoided or removed and some may develop during in-service loading. In these situations, applied fracture mechanics can determine the effect of these defects on service life. Advancements in fracture mechanics, coupled with improved computational capabilities, have extended the application of fracture mechanics to practical problems of interest to welding engineers.

Hot Cracking in Aluminum Welds

2:45 PM – 3:15 PM
Thom Burns, Director of Technical Services and Business Development, AlcoTec Wire Corp.
Hot cracking of aluminum welds can be a function of contraction stresses or the hot-short tendency of certain weld compositions. The problem of hot cracking due to contraction stresses may be avoided by applying welding techniques that overcome the natural volume change that occurs during the heating and cooling of aluminum. It is necessary to understand the effects that alloying elements have on crack sensitivity and how the choice of joint design and the selection of a filler alloy can eliminate it.

The Rewards in Purchasing Filler Metal by the AWS 5.01 Specification

3:20 PM – 3:55 PM
William F. Newell, President, Euroweld Ltd.
The AWS A5.01 specification is organized in a logical order and is user friendly. Whether or not all or part of the criteria listed in the document for actual lot testing are used depends on the extent to which special criteria are needed to adequately describe the product(s) desired and to reduce the uncertainty of receiving a product that may not meet the procurer’s specific needs. As a minimum, the manufacturer is required to have an established quality assurance system and is required to trace the product to some known lot that is unique to that manufacturer. This requirement also applies to those who repackage, relabel and resell another manufacturer’s product that is identified as meeting AWS specification and classification or having the AWS classification imprinted on the electrode.

Weld Cracking VII “The Heat-Affected Zone” Conference

Program Events

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