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Practical Welding Today May/June 2003
The Welder, formerly known as Practical Welding Today, is a showcase of the real people who make the products we use and work with every day. This magazine has served the welding community in North America well for more than 20 years.
Metallurgy Matters: Phases, structures, and the influences of temperature
- By Bob Capudean
- Jun 26, 2003
- Metals/Materials
- Article
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.
Loading up on quality, productivity, safety
- Jun 12, 2003
- Automation and Robotics
- Article
Like the products it manufactures, CNH Global N.V. has to stay on the move—technologically. The company's Wichita, Kan., facility uses robotic weldingto help produce Case- and New Holland-brand skid steer loaders.Powerful yet quick, skid steers can spin on a dime and move heavy loads of...
Aluminum Workshop: Al MIG: CC or CV?
- By Frank Armao
- Jun 12, 2003
- Aluminum Welding
- Article
Q: I've read that constant-current (CC) power supplies are preferred for gas metal arc welding (GMAW) aluminum, but when I visit companies that sell welding equipment, they tell me I want a constant-voltage (CV) power supply. What's the real story? Can I use the more common CV power supplies or...
Found art
- By Kathleen McLaughlin
- Jun 12, 2003
- Arc Welding
- Article
Watching the sparks fly as his dad welded a temperamental posthole digger mesmerized Derek Arnold. "I found the immediacy of something so permanent absolutely fascinating," he said. "I knew I wanted to weld."A hands-on welding education on the family farm drove Arnold to take his skills and creativity to the next level. In 1993 he graduated from the Maryland Institute College of Art in Baltimore. "I've been welding regularly since my freshman sculpture class," he said.
Don't be a hot dog with heating heads
- By Jeffrey Johnson
- May 29, 2003
- Consumables
- Article
Some call them rosebuds, others call them multiflame heating heads, and a few call them heat sticks. No matter what you call torch attachments, this article is a frank discussion about these tools that use oxygen and a fuel gas to make a lot of heat quickly. When used properly, they can make quick work of many heating jobs.
Spinning your wheels?
- By Roger Cloutier
- May 29, 2003
- Consumables
- Article
Grinding wheels used in welding and fabrication are strong, tough tools, but many in the industry have called them "rocks" or "stones," implying that they're unbreakable.
Take the old with the new - Selecting saw blades with new technologies in mind
- By Dave Byrley
- May 29, 2003
- Sawing
- Article
New methods for cutting tube and pipe have been introduced to welding shops in the last few years—methods designed not only to cut metal, but also to cut costs.
- Podcasting
- Podcast:
- The Fabricator Podcast
- Published:
- 04/16/2024
- Running Time:
- 63:29
In this episode of The Fabricator Podcast, Caleb Chamberlain, co-founder and CEO of OSH Cut, discusses his company’s...
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