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If you already know all about plasma cutting, then this article is not for you, but if you’re new to the industry, or investigating all the metal fabrication processes out there, then check it out.
Plasma cutting and how it works
By Kent Swart, Contributing Writer
August 11, 2009What is plasma cutting, and when is it your best metal cutting option? What information do you need to choose the right plasma system? This article answers these questions and more about plasma cutting.
The basic technology for plasma cutting has been around for decades. Researchers and engineers remain focused on increasing cut speed, improving cut quality, and extending consumable life, while making systems smaller and more powerful.
What Is Plasma Cutting?
Once a gas is heated to an extremely high temperature and ionized, it becomes electrically conductive and is considered to be plasma. Plasma arc cutting and gouging processes use plasma to transfer an electrical arc to the workpiece. The metal to be cut or removed is melted by the arc’s heat and then blown away.
And check out this article about plasma arc cutting over at Arc-Zone.com… tips to maximize the life of your PAC consumables and enhance your cut quality –>
…and check out the line of Plasma Arc Cutting Torches and replacement parts at Arc-Zone.com.
How does your structural steel shop measure up? The Fabricator magazine has some helpful guidelines that you can use to see whether or not your shop hits the mark.
1. How close can your drilling operations get to 50 inches per minute?
2. Can you claim material handling costs of less than $50 every time you move a beam?
3. Can your plasma cutting system deliver a cut with a tolerance of 0.010 in.?
4. Can your software packages accommodate the use of CAD models to generate CNC codes automatically?
Technologies help to make shops structurally sound
4 benchmarks your operations need to beat
By Michael Bishop, Contributing Writer
Photo courtesy of Peddinghaus Corp.
Tough economic conditions have hit the construction industry as hard as they have many other industries. These problems in commercial construction are affecting structural steel fabricators. New technologies are especially benefiting four important structural steel fabricating processes by reducing labor costs. These represent some of the bigger developments in recent years.
At Arc-Zone.com we’re always on the lookout for new business opportunities and ways to streamline operations… what are YOUR best tips for streamlining operations? and How are YOU weathering the economy?
Arc-Zone’s own Joe Welder, aka Jim Watson, is on his way to Chicago for the Fabtech/AWS (American Welding Society) Trade Show.
Jim didn’t have much time before he left to write about the show, but he did shoot me an email and asked me to post it:
For the longest time the AWS (American Welding Society) staged their own stand alone welding trade show in April of each year and it rotated primarily around the cities in the midwest.
With the continued acquisition of many small specialty manufacturers, the show’s attendance diminished and lost its luster. Recently the AWS and Fabtech shows merged to combine one big metal working extravaganza!
If your like me and love to see all the good stuff this is the palce to be!
Plan on it this weekend in Chicago!See you there!
–Jim
There’s an impressive list of exhibitors at the show, and some great welding seminars and other programs, including the 2007 PROFESSIONAL WELDERS COMPETITION where you could win $2,500.
Expect a full report and maybe even some information and pics of some great innovative products from Jim when he gets back.
I was back in the shop last week looking around the storage area where I have archived some products that we have collected over the last 25 years. There’s some really interesting stuff back there, from the first TEC brand TIG torches to the first Weldcraft Micro-TIG torch, and the first Crafter Series prototypes and more.
I was looking for a specific Plasma gas distributor for a recent post, when I found something that brought back some great memories and made me laugh — the prototypes for the Weldcraft Plasma Cutting torch! Did you know Weldcraft had a Plasma cutting torch? Well they did and it was a real market innovation — (that’s my favorite word).
It was some 15 years ago… I was Director of Manufacturing at the time, and we decided it was time to leverage the outstanding worldwide brand name that we had built at Weldcraft. We had an excellent group of skilled guys and we identified the Plasma Arc Cutting market as an area that was greatly under served (as it is now).
So Randy Haberman our lead Mechanical Engineer took the concepts and created a blockbuster product line — a universal Plasma Arc Cutting torch that would fit all the popular Plasma Arc Cutting machines and used basically one set of parts! Think about it –one torch — one set of parts regardless of machine type. It was a real innovation.
Weldcraft’s PC-30 Plasma torch was the first to use a sculptured ergonomic handle with a built-in trigger switch located on the bottom of the body — and get this — it was completely rebuildable.
We created a dedicated facility across the street from Weldcraft with a dedicated engineering staff, machinery and sales force, we began to expand into all types of high quality aftermarket Plasma Arc Cutting parts and that’s when the trouble began.
What happened to the Weldcraft PC-30 product line? As the Product Manager I was told to relocate it to our sister company Bernard and rename it PlazCraft.
It seems companies like Hypertherm and Thermal Dynamics didn’t appreciate the competition, and because our division President was trying to buy one or both of those companies we were told to shut it down!
I said I had to laugh because now you see all the new Hypertherm torches with a similar comfortable handle style, and Thermal Dynamics is spending heavily to promote their “One Torch” one torch that fits a variety of Plasma Arc Cutting machines… Been there. Done that! Even Abicor Binzel is in the game with their Abicut Plasma Arc Cutting torch.
That’s been my experience in this industry a lot of copy cat’s — few innovators…
If you’re using HPR® plasma cutting system models 130Amp, 200Amp and 260Amp you may benefit from this new innovation in Plasma Arc Cutting tips from Thermacut.
Traditionally Plasma cutting tips are precision machined from tellurium copper – great for electrical conductivity and heat transfer, but, not so durable when exposed to the plasma jet — that’s why they call them consumables!
Now Thermacut, Inc. has launched a new TungstenEX-® nozzle as a direct replacement for HPR® plasma cutting systems in 130Amp, 200Amp and 260Amp operations. These patented “nozzles,” “constricting tips” or “cutting tips” incorporate a tungsten insert within the nozzle orifice to better handle extreme heat generated by the Plasma jet.
Tungsten is extremely hard and durable and has the highest melting point of all the non-alloyed metals. Additional benefits may be achieved when used with the New SilverEX-® pure-silver high-performance electrodes– consumable life is extended up to four times longer compared to standard copper nozzles and electrodes.
Thermacut, Inc. based in Claremont, NH is a worldwide provider of advanced cutting and welding consumables, accessories and torches.
That’s what I know– take a minute and leave a comment with your thoughts or experience– thanks in advance!
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