Trailing shields for reactive-metal welding

Welding titanium, stainless steel, and other reactive metals releases gases

When welding large pieces of reactive metal, trailing shields keep the heat-affected zone under an argon shield.

that cause oxidation, coking, and hydrogen embrittlement. Welding in an argon-filled enclosure is one solution to the problem, but with large components and structures, welding in an enclosed environment is not always possible. To combat this problem, Cob Industries Inc., Melbourne, Fla., has developed a range of trailing shields.

The trailing shields keep the welded joint and heat-affected zone under an argon shield longer than normal, allowing faster welding and eliminating the risk of oxidation and hydrogen embrittlement.

Applications for trailing shields include welding of gas turbine and aerospace engine housings and components; titanium and duplex pipes for onshore and offshore pipeline and riser applications; titanium components for racecar structures; stainless steel, titanium, and duplex tanks and vessels for the petrochemical industry; and medical components.

The Cob Shields can be fitted to any make or size of manual or automatic GTAW, PAW, or GMAW welding torch and can be delivered for use on any diameter of pipe or vessel and for welding inside or outside. They are also available in a flat format for welding sheet and plate.


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American Metal & Technology, Inc. Increases Capacity; Part of Four-Phase Expansion Plan

American Metal &Technology, Inc. (OTC Bulletin Board: AMGY) ("American Metal," the"Company"), a leading manufacturer in the People's Republic of Chinaengaged in the development, manufacture and sale of high-precision metalcasting and metal fabrication products to European and U.S. markets andmicroprocessor-controlled electronic circuit boards in China, todayannounced it purchased an additional four CNC lathe machines during thefirst quarter ended March 31, 2008, bringing the total number of lathes to60.

All of the high-precision lathe machines are equal in size and capacity
to the Company's existing 56 machines. Three of the machines were put intoproduction during the first quarter, and the fourth is expected to be
delivered and installed in April.

"We continue to make great strides in our major expansion plan, and we
are excited by the growth in demand we see from our U.S. and European
customers," said Mr. Chen Gao, Chairman and Chief Executive Officer of
American Metal. "We see this as a year of great opportunity, and yet also
one in which we are preparing for the future, as we grow to meet today's
demand and move toward expansion into additional production facilities in
2009."

To capitalize on the fast-developing metal casting market in China, the
Company is in the midst of the second step in a four-phase capacity
expansion plan. Phase two will add two manufacturing facilities totaling
117,000 square feet. It is intended to increase the Company's annual
capacity for casting products by 50% and should be completed by the end of2008 and begin production in early 2009.

About American Metal & Technology, Inc.

American Metal & Technology, through its wholly-owned subsidiary
American Metal Technology Group ("AMTG"), a Nevada Corporation, and throughAMTG's subsidiaries, Beijing Tong Yuan Heng Feng Technology Co., Ltd. andAmerican Metal Technology (Lang Fang) Co., Ltd., is a leading manufacturerof high-precision casting and machined products in the People's Republic ofChina. The subsidiaries operate in a 53,819-square-foot manufacturing plantwith monthly output capacity of 1 million parts. In 2006, AMTG expandedinto the design and manufacture of electric circuit boards for homeappliances and motion controllers. The Company recently announced facilityexpansion plans to increase casting product capacity by 50% and enhance thedevelopment and manufacturing of its circuit board solutions at itsLangfang manufacturing center. To learn more about American Metal &Technology, Inc., please visit the Company's website at:http://www.ammyusa.com.

Safe Harbor Statement Under the Private Securities Litigation Reform
Act of 1995: Certain of the statements made in this press release
constitute forward-looking statements within the meaning of the Private
Securities Litigation Reform Act of 1995. Such forward-looking statements
involve known and unknown risks, uncertainties and other unknown factors
that could cause our actual results to be materially different from the
historical results or from any future results expressed or implied by such
forward-looking statements. In addition to statements that explicitly
describe such risks and uncertainties, readers are urged to consider
statements labeled with the terms "believes," "belief," "intends,"
"anticipates" or "plans" to be uncertain and forward-looking. The
forward-looking statements contained herein are also subject generally to
other risks and uncertainties that are described from time to time in our
reports filed with the Securities and Exchange Commission.


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New mechanized air plasma package for cutting metal

Hypertherm introduces the PowermaxEDGE, an entry-level mechanized air plasma cutting system for metal, engineered to deliver quick installation, ease-of-use and maximum performance.

Hypertherm, Inc., Hanover, NH, USA, has simplified mechanized plasma cutting system integration with the introduction of Hypertherm PowermaxEDGE*. Hypertherm describes the product as “integration made easy.”

The “bundled” solution integrates a patented Powermax* plasma system with either a standalone Senso* PHC (Plasma Height Control) or the EDGE* Ti CNC with integrated torch height control. According to Bruce Altobelli, Business Team Leader for Hypertherm’s Manual Systems product line, the PowermaxEDGE is “a complete entry-level mechanized air plasma package engineered to deliver quick installation, ease-of-use and maximum performance – all at price significantly lower than prior offerings.” “We take our position as the world leader in plasma cutting seriously,” said Evan Smith, Hypertherm Vice President and General Manager. “And being the leader means introducing technology – like the new PowermaxEDGE and the recently announced Powermax30 manual cutting system* and HySpeed HSD130 mechanized cutting system– to help drive plasma adoption and grow our customers’ businesses. New products like these are proof of our commitment to providing unmatched breadth and depth of technology advantage in the plasma cutting field, from the ultra-portable inverter to the most advanced automated solutions.”

Hypertherm* Introduces PowermaxEDGE for “Integration Made Easy.” High resolution image. photo: Hypertherm

Metal fabricators can configure the PowermaxEDGE for their specific requirements starting with one of three Powermax G3 plasma systems – the Powermax1000, Powermax1250 or Powermax1650 – depending on cutting requirements. Each model features patented Coaxial-assist* technology as well as advanced torch and power supply designs to cut thicker plates, at faster speeds, with better overall cut quality and consumable life. The PowermaxEDGE with a Powermax1650 cuts up to (2235 mm per minute) on 12 mm thick plate.

Sensor PHC is an easy-to-use automatic plasma height control that maximizes cut quality. Designed for easy integration to CNC tables, it features simple operational controls and fault indicators.

Hypertherm’s Edge Ti sets the standard for affordable, high-performance motion control. The enhanced user interface is a touch screen monitor based on surface acoustic wave technology for robust industrial environment performance. The Windows-XP-embedded operating system supports powerful shape cutting software including HyperNest CNC for automated nesting. The Edge Ti is a self-contained unit with integrated drives that offer easy integration for either new installations or retrofit tables supporting brushless motors (which can be ordered with the unit) up to 250W power.

The PowermaxEDGE provides easy integration for small- to mid-range cutting table applications, light duty cycle needs such as HVAC or custom fabricators (12 mm and below), and for retrofit of existing oxy-fuel or plasma tables.

* Registered Trademarks or applied trademarks of Hypertherm Inc. All other trademarks are the property of their respective companies.

Visit Hypertherm Europe B.V. and/or Hypertherm Inc., May 20-22 at Eastec 2008, Eastern States Exposition, W Springfield, MA USA. Airgas East booth #1156 and ABCO booth #5819.


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