openPR Logo
Press release

How Good is Electron Beam Welding?

08-22-2016 12:47 PM CET | Industry, Real Estate & Construction

Press release from: Andrews Hi-Tec Corporation

Our “advantages” page on electron beam welding have told us what its outstanding advantages are. But how does it compare with other kinds of welding, and what are its prospects as a production welding technique? Westinghouse has made a thorough study of these questions at its Bettis Atomic Power Laboratory and has voted in favor of the new process, at least for certain applications.

“Chemical analyses, metallography, corrosion tests, and mechanical property evaluations have revealed satisfactory properties in the Zircaloy-2 welded by this process.” Of course, the main reason for its success in welding a reactive material like Zircaloy-2 is that the process operates in a high vacuum. At a pressure of only about 0.03 micron of mercury, there is practically no atmosphere left in the welding chamber to cause contamination. And, unless the high vacuum is maintained, the electrons will not travel from the cathode to bombard the work.

High depth-to-width ratio

A particular advantage of electron beam welding equipment is the high concentration of thermal energy at the work piece. Because of this feature, the machine can make welds with a depth-to-width ratio of 2:1 in Zircaloy-2, and a ratio of 3:1 has been achieved with special machine adjustments. But what does this mean in actual processing? Primarily, it means a narrow fusion zone and heat-affected zone, and it means less shrinkage and thermal distortion. The equipment also maintains “remarkably uniform weld penetration.”

The deep penetration of electron beam welds minimizes the amount of over-penetration and avoids the obliteration of adjacent seams. With the tungsten arc process, the seam adjacent to the last seam welded becomes covered by the fusion zone, and accurate tracking is difficult.

Reduced shrinkage

The lowered total energy input to the weld by the electron beam effectively reduces the shrinkage and thermal distortion to which the work piece is subjected. Total transverse shrinkage per weld seam has been 0.010 to 0.012 in. for tungsten arc welds and only 0.001 to 0.002 in. for electron beam welds. These benefits are possible only with high-voltage electron beam equipment.

How about costs?

But, with all its advantages, how does high-voltage electron beam welding stack up on costs? Andrews Hi-Tec Corp says the main factor here is the greatly reduced distortion because of lower energy input. Special spacers will be eliminated; post-weld match machining will be reduced; and special straightening operations will no longer be necessary. In addition, deep penetration will eliminate the need for multiple passes and filler wire additions. And the vacuum will permit fuel elements to be welded without removing the corrosion film left by previous corrosion tests and will permit elimination of subsequent corrosion testing of fuel assemblies.

Overall savings is huge

Taking all these savings together it appears that there is a potential cost reduction of 45 to 60% in direct labor costs of a typical assembly. Enough of a savings to justify choosing the electron beam welding expertise of Andrew Hi-Tec Corporation for your metal joining production applications.

For more information, contact Andrews Hi-Tec Corporation at 2447 Merced Ave., South El Monte, CA 91733;
1-626-443-1488; Toll Free 1-855-4EBWELD; or see

Andrews Hi-Tec Corporation provides electron beam welding services for customer applications ranging from the automobile industry to life saving medical devices and to advanced rockets and spacecraft.

Andrews Hi-Tec Corporation
2447 Merced Avenue
South El Monte, CA 91733
United States

David Andrews

This release was published on openPR.

Permanent link to this press release:

Please set a link in the press area of your homepage to this press release on openPR. openPR disclaims liability for any content contained in this release.

You can edit or delete your press release How Good is Electron Beam Welding? here

News-ID: 357453 • Views:

More Releases for Andrew

Author Andrew Wilcox releases second novel, Walkabout
On the heels of his best-selling first novel, Compass, Andrew Wilcox releases his second novel Walkabout. Walkabout is about the people, places, and experiences that you discover when you step out on the trail. In this novel, you will meet peakbaggers, daytrippers, thru-hikers, tribes, ruckers, and the earthy set, all finding their way to whatever that five miles at a time reveals to them at different moments. You will hear from
BCW Appoints Andrew Cecil as New Brussels CEO
LONDON / BRUSSELS, 8 April 2020 - BCW (Burson Cohn & Wolfe), a leading global communications agency, today announced the appointment of Andrew Cecil as Chief Executive Officer (CEO) of BCW Brussels. Cecil takes on the role with immediate effect and will report to Scott Wilson, President, BCW, Europe & Africa (E&A). "This is a richly deserved promotion for Andrew; he has an excellent track record as one of our very
Attorney Andrew Weinstein Recognized as Florida Legal Elite
Attorney Andrew Weinstein of the Weinstein Law Firm in Coral Springs was recently recognized in the 2011 edition of Florida Trend’s Florida Legal Elite™. Last fall, lawyers in Florida were asked by Florida Trend to name attorneys they hold in the highest regard or would recommend to others. Ballots were processed, checked and tabulated by a third party resource. Each lawyer was given a score based on the number
Andrew Bers Team Named Five Star Real Estate Agents
LONGBOAT KEY, FL, June 30, 2011 – Five Star Professional has named Andrew Bers and Robbie Petsinger of the Andrew Bers Team as recipients of the 2011 Five Star Real Estate Agent Award for Best in Client Satisfaction, published in Sarasota magazine. Bers has received the award for six consecutive years and Petsinger has received the award each year since 2008. Based on an independent survey of recent homebuyers,
Huntington, NY — Attorney Brian Andrew Tully, Esq. has announced that he has joined the Academy of Special Needs Planners. Among the many challenges facing parents of special-needs children is planning for the time when the parents will no longer be around to act as the primary caregivers. The Academy of Special Needs Planners assists attorneys in providing the highest quality service and advice to individuals with special needs and
Vince Stanzione interview by Andrew Penman Daily Mirror
SPREAD OVER HEELS COMMODITY trader Vince Stanzione, 34, got fed up making money for his bosses. So now he makes cash for himself gambling on the markets. Penman met him for a brace of Becks to delve into the secrets of financial spread betting. So far, Vince has had a great year. "I've made a lot of money buying the euro and done very well buying gold," he said. Vince Stanzione