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Seerp Visser

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    Forging, restoration, sports
  1. Jokke, The coating still has to be added. The burner opening is not yet made (with the tapered entrance of the gas) and the coating becomes very hard. So i add the coating when finishing the oven. Jan, Indeed this is alu foil. I expect the air inside the tubing will cool the pipe. I expect a temperature rise of maximum 100 degrees C before entering in the burner. The air in my Wootz oven rises 40 degrees, from 20 to 60 degrees. In case the airflow stops or when i don't use the preheating system i can expect problems with the aluminum. The foil is made for exhaust systems and can stand
  2. Ric, The forge works well. We have made a number of Wootz cakes and they come out fine. We start the forge slowly and after heating up we fire with propane on a pressure of 0.6 bar or 8.6 psi. that is the maximum. After the mixture is fluid we slowly drop the pressure till we are sure the cake has a temperature of approx 700 degrees s C or 1300 degrees F.The whole process takes between two and a half or three hours. We tested with a welding rod what melts fast in the forge. Ihe inlet air is heated from 20 degr. C up to 60 degrees C (140F). So we thought we found the ideal forge with t
  3. The workshop is fully booked for Saturday and Sunday. An extra day, Friday, February 24 is added. For that day some 7 places are open.
  4. To my opinion you should not quench warm cutting tools. the edge of the tool will be so thin and sharp that it takes the temperature of your material in a few seconds, loosing the effect you wanted to obtain. Just forge your hardy from a piece of good steel and don't cool it in water. The only thing what could be advisable is when you are cutting a heavy piece, give it a heat after each five strokes, enabling the hardy to cool. Or when your hardy is large enough you can slide your piece after a number of strokes to a cold part of the hardy. This is only required by larger, heavy pi
  5. I received some questions about the languages spoken during the workshop. Aleko speaks Georgian, Gotscha speaks Georgian and Dutch. I will be around to translate in English, French or German where necessary. Besides that the workshop will be more practical than theoretical Since we organize the workshop for a maximum of twelve participants per day there will be an intensive individual assistance where demanded. During the two days international workshop making Wootz with Zaqro Nonikashvili we did not experience any difficulties with languages. Seerp Visser (i assist Gotscha in or
  6. Seerp Visser Bellevuedreef 40 B-2970 Schilde (Antwerp) Belgium Mail: seerp@pandora.be Teachter (retired) Royal Academy of Arts, Antwerp Belgium, Forging Classes for individuals, groups of 4 people or groups of 8 Basic Forging, Tool making, Restoration and classic forging work, Beginners classes for Pattern welded steel and Wootz (Zaqro method) All required tools and materials are available. Boarding and lodging can be arranged I speak Dutch, English, some French and German
  7. In an article, i found some time ago, there was mentioned that a Dutch ship had loaded 20,000 Wootz cakes in India. The Dutch in the 17/18th century were prominent traders and had some exclusive rights for business with Japan. When Wootz was transported from India to Damascus in the year 1000 AC and before, it is logical to suggest that the Japanese should know the existance of the Arabian/Indian swords and Wootz in the 17th and 18th century. Especially since the Japanese had a very highly appreciated Sword tradition and were conservative in changing from swords to firearms in combat. S
  8. I appreciate very much that Zaqro and Gotscha showed us openly about this Bulat/Wootz making process, as well as the way they did this. Just to inform you about who this Georgian people are and how they look like (no beards) i herewith submit some Photgraphs. For those among us who are interested in some more information about the Bulat/Wootz session in Antwerp (Dutch language)or the work of Gotscha, this is the link to the website of Gotscha Lagidse: http://www.gotscha.nl/.
  9. thank you for your advise and commments. next run we will check the temperature of the inside of the insulation at the place of the coil. I think we still have more than 2 inch insulation on either side of tube coil. For your interest i will measure the insulation thickness. The inox tube is cooled by the inlet air and is placed at the top of the furnace (not the hottest place) and the heat we are taking away from the furnace has passed already the crucible. Perhaps we loose a slight amount of radiation heat by a cooler upper part of the furnace. I found in books that in the past preheating o
  10. Hello this is the first topic i try to write for the forum. I am reading the topics regularly and feel that i should do something in return for all the usefull info i get from you all. I am a blacksmith in Belgium and we sre starting to try to make Wootz. We started with following a workshop with Andreas Schweickert and now we are in the process of building a furnace. Our first test results of the furnace with burner were supprising us. We used a gastank as done by many and a burner following a design obtained from Andreas Schweickert. As extra we installed a preheating system for
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