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#1
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Aluminium problem
6061,6063,2004,6060 ..ARGHHHH!
Question if I may....... On the plans of the Homebuilt I am building it calls for a Boom.. The material requested is 6063-T3 (Which I cannot find anywhere) After much discussion the designer noted that if you cannot get 6063-T3 you can use 6061-T6.. Great .. Until I found out I cannot get the length required in Australia... After discussing with an Aluminium supplier here they have suggested that I can use 6060-T5 as a replacement for the 6063-T3 as the length I require is available in this grade. Although he would know more than me about aluminium I still feel uncomfortable with his advice and my lack of knowledge...... Can anyone advise?.. If 6060-T5 is NOT suitable can you suggest a million other alternatives I can choose from..... -- Regards Kevin Berlyn www.fighterultralight.com www.australianultralights.com |
#2
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Kevin Berlyn wrote:
6061,6063,2004,6060 ..ARGHHHH! Question if I may....... On the plans of the Homebuilt I am building it calls for a Boom.. The material requested is 6063-T3 (Which I cannot find anywhere) After much discussion the designer noted that if you cannot get 6063-T3 you can use 6061-T6.. Great .. Until I found out I cannot get the length required in Australia... After discussing with an Aluminium supplier here they have suggested that I can use 6060-T5 as a replacement for the 6063-T3 as the length I require is available in this grade. Although he would know more than me about aluminium I still feel uncomfortable with his advice and my lack of knowledge...... Can anyone advise?.. If 6060-T5 is NOT suitable can you suggest a million other alternatives I can choose from..... Suggest you refer to the designer, suppliers may not know. I am in Oz (now a 3rd world country) and have a degree in metallurgy and would point to the LEGAL bit after the signature. -- regards jc LEGAL - I don't believe what I wrote and neither should you. Sobriety and/or sanity of the author is not guaranteed EMAIL - and are not valid email addresses. news2x at perentie is valid for a while. |
#3
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jc wrote:
Kevin Berlyn wrote: 6061,6063,2004,6060 ..ARGHHHH! Question if I may....... On the plans of the Homebuilt I am building it calls for a Boom.. The material requested is 6063-T3 (Which I cannot find anywhere) After much discussion the designer noted that if you cannot get 6063-T3 you can use 6061-T6.. Great .. Until I found out I cannot get the length required in Australia... After discussing with an Aluminium supplier here they have suggested that I can use 6060-T5 as a replacement for the 6063-T3 as the length I require is available in this grade. Although he would know more than me about aluminium I still feel uncomfortable with his advice and my lack of knowledge...... Can anyone advise?.. If 6060-T5 is NOT suitable can you suggest a million other alternatives I can choose from..... Suggest you refer to the designer, suppliers may not know. I am in Oz (now a 3rd world country) and have a degree in metallurgy and would point to the LEGAL bit after the signature. I'm with jc on that. I was talking to a metallurgist at a steel company yesterday. I'm trying to locate a couple 3" disks of 6150, 1/2" thick. He was suggesting alternatives that would heat treat to a 42 Rockwell hardness, suggesting several steel. S7 tool steel, for instance. Then I asked him if it was a spring steel as this was for a landing gear. The story changed completely, and he eliminated most of the suggestions he had made. The point is, the metal salesman doesn't know what the designer was after, and metal has a long list of properties other than 'strength'. I'm still looking, but I'll not be using anything for my gear legs that isn't approved by John Dyke. -- This is by far the hardest lesson about freedom. It goes against instinct, and morality, to just sit back and watch people make mistakes. We want to help them, which means control them and their decisions, but in doing so we actually hurt them (and ourselves)." |
#4
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Kevin,
I have the Fighter UL plans too. I just checked your website and I'm glad you have made that resource available. I emailed Durana with some questions but he has not responded. The plans don't show nearly enough detail and the 2024 specified for the spars is ridiculously expensive. Every ultralight I know uses 6061. For added strength in critical areas, such as at the strut attach points, double or even triple-sleeving can be used. I'm pretty much decided on building a Minimax now because of the problems with the Fighter plans, but will be checking your website to see how the builder community is doing. Some interesting solutions being proposed there. Regards, Gordon Arnaut Ontario, Canada "Kevin Berlyn" wrote in message ... 6061,6063,2004,6060 ..ARGHHHH! Question if I may....... On the plans of the Homebuilt I am building it calls for a Boom.. The material requested is 6063-T3 (Which I cannot find anywhere) After much discussion the designer noted that if you cannot get 6063-T3 you can use 6061-T6.. Great .. Until I found out I cannot get the length required in Australia... After discussing with an Aluminium supplier here they have suggested that I can use 6060-T5 as a replacement for the 6063-T3 as the length I require is available in this grade. Although he would know more than me about aluminium I still feel uncomfortable with his advice and my lack of knowledge...... Can anyone advise?.. If 6060-T5 is NOT suitable can you suggest a million other alternatives I can choose from..... -- Regards Kevin Berlyn www.fighterultralight.com www.australianultralights.com |
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