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Editor's Page
Previous editor's page: 06/2005

Statistics updated

I am pleased to announce that the new traffic record was made on March 2006. The number of monthly visitors is now 130305 making second time over one million hits within single month. What is strange - but positive - is to see how much the traffic rised from February. Well, if you take a look at previour March-months, they have been always high. This only shows that this year makes no difference. It is just surpricingly high growth from February. I think April will be slower.

Detailled figures can be seen from here

ServoTIG - Automatic Penetration Control changes the way of Orbital Welding & Amsterdam Marathon

This time I have something really interesting to tell for Tube and Pipe Industries. I wrote in the previous editor's page that I met at Schweissen & Schneiden Welding show some really interesting people. They are form Dynamicc Welding Company, Holland. The point is that they have developed a revolutionary Orbital Welding system - ServoTIG. I was told then that it can make orbital welding without typical parameter programming. Machine supposed just to need some information about tube material, diameters and wall thickness. After that, it can make full penetrated welding seam orbitally. First, I was a kind of interested, but since all Orbital Welding makers are often claiming that they have something new, I didn't got too excited with it.

Trip to Holland

Anyhow, after the Essen show, I began to think about this idea. If it really works as they say, I started to look for possibilities to visit to their factory in Holland. I was a kind of lucky, since I noticed soon that Amsterdam marathon will take place on October 16:th. So, it was a kind of match for me to combine these two interesting things with the same trip! So, we agreed about the meeting and demonstrations which took place on October 14:th.

I am not deeply familiar with orbital welding, but still what I saw was astonishing. There were a number of tubes being fabricated with T-DRILL's well known Collars. Now I really understand also why tube/pipe branching is easy with T-DRILL system.

So, People at Dynamicc Welding had planned to show me how Orbital welding can be made just perfectly with first trial and without any given parameters to the machine using difficult cases where wallthickness is changing. This, as far as I know, is difficult for ordinary orbital welding. This is also what I saw.

They just entered tube diameters, approximate of wall thicknesses and material. The machine actually found the full penetration by itself and maintained it through the full orbital cycle. A log list was available after the welding how all happened. The welding seam was perfect as far as I can understand.

Suddenly I realized that the matter that I saw really can be a revolution within automatic orbital welding. This is why I am writing to you about it.

I saw two weldings and I am 100% sure that they were not practiced before, since I heard from T-DRILL that they had sent just one ST304L 4" pipe with 2 mm wallthickness tube for testing. This one was welded during my visit. The wall thickness on the collar was changing from 1.2 to 1.8 mm and the machine adjusted itself accordingly.

4" x 2.0 mm ST304L pipe with 4" collar being welded orbitally.

All above 4 weldings were made with the same program without entering any parameters.

I am actually proud that TubeNet is the first well known Tube & Pipe media to be able to tell about ServoTIG. Being thankful for this experience, I made even an enquiry form for the manufacturer itself if you want to get more information about ServoTIG. Please help yourself: Click Here

Amsterdam Marathon

Those who have been following TubeNet for a long time, knows that 4 years ago something went wrong in my head and I started to run. First marathon in Atlanta 2001 and then 24 more. Last one was Amsterdam on October 16:th, 2005.

I am so pleased now that I went there to run since I broke by record time which is now 3:15. Seven minutes less than in Richmond, Virginia nearly two years ago (3:22).

Cheers my friends

Juha