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Articles tagged with "alloy"

Results: 15

	Establishing an alloy verification process: SOPs help to prevent material mix-ups By: Jonathan Shein and Andrea Kinney, Ph.D., Contributing Writers Production or fabrication processes can include dozens of stages to convert raw materials into finished goods. Regardless of the raw material or the finished product, one factor is constant - - most metals look alike. Publish date: October 11, 2001 Tech cell: Metals/Materials
	The structure of metal By: Bob Capudean, Contributing Writer Let's start with the obvious: Molten metals have no particular structure. The atoms that make up that metal are just whipping around helter-skelter—at a high rate of speed—with no real orderly, defined pattern. Publish date: April 24, 2003 Tech cell: Metals/Materials
	Phases, structures, and the influences of temperature By: Bob Capudean, Contributing Writer When you heat or cool a piece of metal to a specific temperature, that metal goes through what's called a phase change, in which its crystal structure changes. Sometimes the change is obvious. For example, when a piece of metal melts, it goes through a phase change when the crystal structure breaks down and the metal goes from solid to liquid. When it solidifies it's also a phase change, as the structure re-forms from liquid to solid. Publish date: June 26, 2003 Tech cell: Metals/Materials
	Carbon content, steel classifications, and alloy steels By: Bob Capudean, Contributing Writer Steel classification is important in understanding what types are used in certain applications and which are used for others. For example, most commercial steels are classified into one of three groups: plain carbon, low-alloy, and high-alloy. Steel classification systems are set up and updated frequently for this type of information. Publish date: August 28, 2003 Tech cell: Metals/Materials
	Combating plate corrosion: Improving corrosion resistance through welding, fabrication methods By: Hira Ahluwalia, Ph.D., Contributing Writer Publish date: October 9, 2003 Tech cell: Metals/Materials
	Getting more punch life: Alternate tooling alloy and coating reduce friction, heat buildup Augur Metal Products, a sheet metal fabricator that manufactures components for OEMs, punches large stainless-steel sheets for commercial separators. Its punches required sharpening after punching 10 to 15 sheets until it changed to Mate punches made from DuraSteel™ tooling with Maxima® coating and dies made with Mate's Slug Free® design. The new tooling allows the company to exceed 40 sheets between sharpenings and increase press speed by 20 percent. Publish date: July 13, 2004 Tech cell: Punching
	Selecting the right materials for roll forming—Part 2: How mechanical properties affect production By: George Halmos, Contributing Writer This is the second part of a two-part article. Read Part I. If you examine the mechanical properties of several materials, including carbon steel, alloyed steel, stainless steel, as they relate to roll forming, you'll gain an understanding of the influence of some primary metal processes on roll forming. Publish date: September 13, 2001 Tech cell: Roll Forming
	Changing the way they do business: Bridge, structural fabricators have to think about process choices By: Steven T. Snyder, Contributing Writer Dealing with work loads, delivery schedules, and many other responsibilities doesn't leave managers with much time to consider factors that justify equipment improvements. Publish date: September 4, 2001 Tech cell: Shop Strategies
	Resisting cracking, deformation, and premature wear: Powder metallurgical steels provide an alternative to conventional tool steels By: James Kaszynski, Contributing Writer Want to know how powder metallurgical tool steels are produced and how their properties provide the material's toughness and wear resistance? Read on. Publish date: June 15, 2001 Tech cell: Tool and Die
	A primer on titanium tube and pipe: Applications abound for this versatile metal By: R.L. Porter and C.P. Clancy, Contributing Writers This article discusses titanium—how it is processed; the types and grades of pure titanium and alloys that are available; and applications for titanium tube and pipe. Discusses manufacturing and testing titanium tube and pipe to ASTM standards for specific applications. Publish date: May 16, 2002 Tech cell: Tube and Pipe Fabrication
	Welding zirconium and zirconium alloys: Array By: Array Array Publish date: Array Tech cell: Tube and Pipe Fabrication
	Welding zirconium and zirconium alloys Part II: Part II: Welding technique, procedures, and quality testing By: Richard Sutherlin Like welding of other metals, welding zirconium successfully depends on correct application of electrical characteristics, wire feed, interpass cleaning, preheating, and heat input. Understanding the resulting surface color is key in knowing whether the weld was performed successfully or if it requires repair. Publish date: April 11, 2005 Tech cell: Tube and Pipe Fabrication
	Welding aluminum tailored blanks with Nd:YAG lasers for automotive applications By: Mohammed Naeem and Richard Jessett, Contributing Writers The increased average power at the workpiece delivered by a 4-kilowatt, continuous-wave Nd:YAG laser source can be used for tailored blank welding of aluminum alloys Publish date: February 19, 2001 Tech cell: Automation and Robotics
	Which wire do you require?: How to select a gas-shielded welding electrode By: Lisa Byall and Doug Krebs, Contributing Writers Are you looking for ways to improve quality, raise productivity, and save costs in your current welding operations? If you haven't examined the various electrode choices, you could be missing an opportunity to take your production welding to the next level. Publish date: July 24, 2003 Tech cell: Consumables
	Identifying the right cutting and welding tips: Understanding torch tip design and function By: John Uccellini, Contributing Writer Publish date: October 9, 2003 Tech cell: Consumables