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Metalworking (rec.crafts.metalworking) Discuss various aspects of working with metal, such as machining, welding, metal joining, screwing, casting, hardening/tempering, blacksmithing/forging, spinning and hammer work, sheet metal work. |
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#1
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Buy 5052 H38 alum sheet , tapered rollers for airplane hub
Plenty of commerce in USA , so why cant i spend some bucks and get some aluminum shipped ? I've got many practical designs for airplane . i'll probably go for a single 75" four blade prop and 3 wings , that fold fwd . Frame cant be riveted aluminum for the stress points . such as landing gear . too much weight , to spread out into an alum frame . brazed bicycle method can take a 10,000 jolt on landing . Alum cant . cycling steel back and forth , but less than 44,000 psi it will never fail . Alum will fail , at any small lload . That stress maybe 122 million cycles , but it will fail . Steel wont . Even 87,000 psi UTS tubing , cycled at 30,000 psi , will NEVER fail . Alum will ! Old steel framed bicycles were lighter and stronger than todays alum frames . Longevity-inc is on the skids , they pay the companies owners $4000 net , a year . their welders dont weld . |
#2
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Buy 5052 H38 alum sheet , tapered rollers for airplane hub
10 to 1, a buffalo nickel says it will never happen.
This guy doesn't have it in him to build and fly an airplane. MansD8 wrote: Plenty of commerce in USA , so why cant i spend some bucks and get some aluminum shipped ? I've got many practical designs for airplane . i'll probably go for a single 75" four blade prop and 3 wings , that fold fwd . Frame cant be riveted aluminum for the stress points . such as landing gear . too much weight , to spread out into an alum frame . brazed bicycle method can take a 10,000 jolt on landing . Alum cant . cycling steel back and forth , but less than 44,000 psi it will never fail . Alum will fail , at any small lload . That stress maybe 122 million cycles , but it will fail . Steel wont . Even 87,000 psi UTS tubing , cycled at 30,000 psi , will NEVER fail . Alum will ! Old steel framed bicycles were lighter and stronger than todays alum frames . Longevity-inc is on the skids , they pay the companies owners $4000 net , a year . their welders dont weld . |
#3
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Buy 5052 H38 alum sheet , tapered rollers for airplane hub
cavelamb wrote:
10 to 1, a buffalo nickel says it will never happen. This guy doesn't have it in him to build and fly an airplane. I don't want to be anywhere near his first test flight. Wes EAA member since 1987 -- "Additionally as a security officer, I carry a gun to protect government officials but my life isn't worth protecting at home in their eyes." Dick Anthony Heller |
#4
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Buy 5052 H38 alum sheet , tapered rollers for airplane hub
Wes wrote:
cavelamb wrote: 10 to 1, a buffalo nickel says it will never happen. This guy doesn't have it in him to build and fly an airplane. I don't want to be anywhere near his first test flight. Wes EAA member since 1987 -- "Additionally as a security officer, I carry a gun to protect government officials but my life isn't worth protecting at home in their eyes." Dick Anthony Heller It will never come to that (fortunately). My EAA number is low 5 digits! |
#5
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Buy 5052 H38 alum sheet , tapered rollers for airplane hub
cavelamb wrote:
It will never come to that (fortunately). My EAA number is low 5 digits! 288xxx -- "Additionally as a security officer, I carry a gun to protect government officials but my life isn't worth protecting at home in their eyes." Dick Anthony Heller |
#6
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Buy 5052 H38 alum sheet , tapered rollers for airplane hub
Wes wrote:
cavelamb wrote: It will never come to that (fortunately). My EAA number is low 5 digits! 288xxx 262xx |
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