KR> 6063 aluminum
Brian Kraut wrote: > Be leary of any metal you get from Home Depot or Lowes if you plan on > doing > anythng structural with it. I am not 100% sure what alloy they carry, but > it is pretty bright and corrosion resistant which means it is most likely > a > weaker alloy than 6061. The aluminum that's sold at Home Depot and that kind of store is usually 6063, which looks like polished 6061. It's also called "architectural" grade aluminum, which means it's pretty and won't corrode, but the name is a little misleading. It's great for making things look nice, but structurally not as strong as 6061-T6, so not the one to use if you're building an airplane. I fish a few scraps of aluminum out of the recycle bin at work on occasion, and although we hardly ever use 6063, I do see a piece now and then. Like Brian said, it's clearly apparent that it's not 6061, and more importantly it's real obvious when you drill it, as it cuts like butter and the chips are a completely different animal than 6061 chips (smaller and more crumbly). I made a pretty huge pile of chips last night, machining a piece of 4.5" diameter alumimum round down to 3.96" to make a plug for a Corvair cylinder head. This will allow me to pressure test the intake and exhaust valve sealing capability before installing the head on the engine. It takes the place of a 94mm cylinder, and bolts to the head to seal off the combustion chamber. A nice tool to have, and one that nobody sells. I made a tight fitting 94mm VW piston pin installer last week, which sure beats the old 15mm Craftsman socket that I've used for the last 30 years for that job! Another handy tool... Mark Langford, Huntsville, Alabama see KR2S project N56ML at http://home.hiwaay.net/~langford email to N56ML "at" hiwaay.net
KR> 6063 aluminum
How can you visually tell the difference between 6061-T6 and 6063? Darren Crompton AUSTRALIA On 2/13/07, Mark Langford wrote: > > Brian Kraut wrote: > > > Be leary of any metal you get from Home Depot or Lowes if you plan on > > doing > > anythng structural with it. I am not 100% sure what alloy they carry, > but > > it is pretty bright and corrosion resistant which means it is most > likely > > a > > weaker alloy than 6061. > > The aluminum that's sold at Home Depot and that kind of store is usually > 6063, which looks like polished 6061. It's also called "architectural" > grade aluminum, which means it's pretty and won't corrode, but the name is > a > little misleading. It's great for making things look nice, but > structurally > not as strong as 6061-T6, so not the one to use if you're building an > airplane. I fish a few scraps of aluminum out of the recycle bin at work > on > occasion, and although we hardly ever use 6063, I do see a piece now and > then. Like Brian said, it's clearly apparent that it's not 6061, and more > importantly it's real obvious when you drill it, as it cuts like butter > and > the chips are a completely different animal than 6061 chips (smaller and > more crumbly). > > I made a pretty huge pile of chips last night, machining a piece of 4.5" > diameter alumimum round down to 3.96" to make a plug for a Corvair > cylinder > head. This will allow me to pressure test the intake and exhaust valve > sealing capability before installing the head on the engine. It takes the > place of a 94mm cylinder, and bolts to the head to seal off the combustion > chamber. A nice tool to have, and one that nobody sells. I made a tight > fitting 94mm VW piston pin installer last week, which sure beats the old > 15mm Craftsman socket that I've used for the last 30 years for that job! > Another handy tool... > > Mark Langford, Huntsville, Alabama > see KR2S project N56ML at http://home.hiwaay.net/~langford > email to N56ML "at" hiwaay.net > > > ___ > Search the KRnet Archives at http://www.maddyhome.com/krsrch/index.jsp > to UNsubscribe from KRnet, send a message to krnet-le...@mylist.net > please see other KRnet info at http://www.krnet.org/info.html >
KR> 6063 aluminum
>-Original Message- >Behalf Of Mark Langford >Subject: Re: KR> 6063 aluminum Brian Kraut wrote: > Be leary of any metal you get from Home Depot or Lowes if you plan on > doing > anythng structural with it. I am not 100% sure what alloy they carry, but > it is pretty bright and corrosion resistant which means it is most likely > a > weaker alloy than 6061. Langford wrote: >The aluminum that's sold at Home Depot and that kind of store is usually >6063, which looks like polished 6061. It's also called "architectural" >grade aluminum, which means it's pretty and won't corrode, but the name is a >little misleading. You guys may want to check with large specialty hardware stores. There are two hardware stores close to me that actually stock various sizes of 6061-T6. One of them is an ACE Hardware and the other is an independent hardware store. Good Luck Mark Jones (N886MJ) Wales, WI My Web site: http://www.flykr2s.com/ Mailto:flyk...@wi.rr.com
KR> 6063 aluminum
Actually I've often wondered about the strength thing with aluminium. Refer http://www.capral.com.au/product_info/alloy.pdf for a nice summary. In Australia, the common alloy over the hardware Bunnings type bench is 5005 H34 for rolled sheet and 6060 T5 for extruded angle with Ultimate Tensile Strengths (UTS) of 135-180Mpa (depends on thickness) and 150Mpa respectively. 6060 seems interchangeable with 6063 and both are termed architectural. 6061 T6 appears a lot stronger at 260Mpa however it is not as corrosion resistant, does not appear to come in sheets and seems to harden (more fatique prone?) with age. I just wonder whether we would ever have a need to use the higher strengths of 6061...wouldn't the 5005/6060 be more than enough? 135-180Mpa is still bloody strong in my view and certainly it is more easily available over here and a lot cheaper. I've used 5005 for my fuel tanks and 6060 for all the bracketry in my bird except the elevator hinges where RR plans specifiy 6061 T5 or equivalent. John Martindale 29 Jane Circuit TOORMINA NSW 2452 AUSTRALIA phone: 61 2 66584767 (H) 61 2 66869075 (W) mobile: 0403 049990 email:johnja...@optusnet.com.au web: www.members.optusnet.com.au/johnjanet/Martindale.htm - Original Message - From: "Mark Langford" To: "KRnet" Sent: Tuesday, February 13, 2007 11:28 PM Subject: Re: KR> 6063 aluminum > Brian Kraut wrote: > >> Be leary of any metal you get from Home Depot or Lowes if you plan on >> doing >> anythng structural with it. I am not 100% sure what alloy they carry, >> but >> it is pretty bright and corrosion resistant which means it is most likely >> a >> weaker alloy than 6061. > > The aluminum that's sold at Home Depot and that kind of store is usually > 6063, which looks like polished 6061. ..snip
KR> 6063 aluminum
I have written to Wicks to find out what is up with the 4 X 4 X 1/8 angle. They have 1/4, but no way you would use that. If this is no longer available, what will current builders use to make the brackets that we always used this stuff for? See N64KR at http://KRBuilder.org - Then click on the pics See you at the 2007 - KR Gathering There is a time for building and a time for FLYING and the time for Flying has begun. Daniel R. Heath - Lexington, SC ---Original Message--- From: Martindale Family List-Post: krnet@list.krnet.org Date: 02/13/07 18:19:58 To: KRnet Subject: Re: KR> 6063 aluminum Actually I've often wondered about the strength thing with aluminium. Refer http://www.capral.com.au/product_info/alloy.pdf for a nice summary. In Australia, the common alloy over the hardware Bunnings type bench is 5005 H34 for rolled sheet and 6060 T5 for extruded angle with Ultimate Tensile Strengths (UTS) of 135-180Mpa (depends on thickness) and 150Mpa respectively. 6060 seems interchangeable with 6063 and both are termed architectural. 6061 T6 appears a lot stronger at 260Mpa however it is not as corrosion resistant, does not appear to come in sheets and seems to harden (more fatique prone?) with age. I just wonder whether we would ever have a need to use the higher strengths of 6061...wouldn't the 5005/6060 be more than enough? 135-180Mpa is still bloody strong in my view and certainly it is more easily available over here and a lot cheaper. I've used 5005 for my fuel tanks and 6060 for all the bracketry in my bird except the elevator hinges where RR plans specifiy 6061 T5 or equivalent. John Martindale 29 Jane Circuit TOORMINA NSW 2452 AUSTRALIA phone: 61 2 66584767 (H) 61 2 66869075 (W) mobile: 0403 049990 email:johnja...@optusnet.com.au web: www.members.optusnet.com.au/johnjanet/Martindale.htm - Original Message - From: "Mark Langford" To: "KRnet" Sent: Tuesday, February 13, 2007 11:28 PM Subject: Re: KR> 6063 aluminum > Brian Kraut wrote: > >> Be leary of any metal you get from Home Depot or Lowes if you plan on >> doing >> anythng structural with it. I am not 100% sure what alloy they carry, >> but >> it is pretty bright and corrosion resistant which means it is most likely >> a >> weaker alloy than 6061. > > The aluminum that's sold at Home Depot and that kind of store is usually > 6063, which looks like polished 6061. ..snip ___ Search the KRnet Archives at http://www.maddyhome.com/krsrch/index.jsp to UNsubscribe from KRnet, send a message to krnet-le...@mylist.net please see other KRnet info at http://www.krnet.org/info.html
KR> 6063 aluminum
I think Orma said that he had a place near him that had a good salection aluminum - "Orma"? Keith and Martha Crawford mar...@simerson.net http://martha.simerson.net
KR> 6063 aluminum/ Brackets
what will current builders use to make the brackets that we always used this stuff for? I never found any 4 inch angle. So I just got T6 in small sheets here in Australia. and just bent and made my own brackets. as per plans measurements ( available from a number of places in Aust. down to 1 foot x 1 foot, ) Piece of cake. Just make sure you bent it around a correct radius. ( I found a 1 inch by 1 inch hollow section had the perfect radius) Look in the Tony Bingelis books for help!! Phil Matheson VH-PKR Australia KR Web Page www.philskr2.50megs.com http://www.vw-engines.com/
KR> 6063 aluminum
>I just wonder whether we would ever have a need to use the higher strengths >of 6061...wouldn't the 5005/6060 be more than enough? Depends on what you are using it for. Coffee cup holder, sure. Control surface hinge bracket, not me. >I've used 5005 for my fuel tanks You are better off using the softer grades of aluminum for fuel tanks. 5052 is the best. It is one of the most weldable alloys and it won't crack and leak easily like the stronger alloys. Brian Kraut Engineering Alternatives, Inc. www.engalt.com
KR> 6063 aluminum
6061 has more of a whiteish color and 6063 is more of a shiney silver color like Mark said. 7075 is more shiney than 6063 if it is freshly machined or polished, but it will tarnish more quickly. 2024 is more of a grey color. I have had a milling machine and lathe for the past 20 years and I do a lot of metal work so I can tell by cutting, drilling, filing, or machining a piece what it most likely is, but my recommendation is that if you are not sure you should assume it is not what you think it is. Brian Kraut Engineering Alternatives, Inc. www.engalt.com -Original Message- From: krnet-boun...@mylist.net [mailto:krnet-boun...@mylist.net]On Behalf Of Darren Crompton Sent: Tuesday, February 13, 2007 7:43 AM To: KRnet Subject: Re: KR> 6063 aluminum How can you visually tell the difference between 6061-T6 and 6063? Darren Crompton AUSTRALIA On 2/13/07, Mark Langford wrote: > > Brian Kraut wrote: > > > Be leary of any metal you get from Home Depot or Lowes if you plan on > > doing > > anythng structural with it. I am not 100% sure what alloy they carry, > but > > it is pretty bright and corrosion resistant which means it is most > likely > > a > > weaker alloy than 6061. > > The aluminum that's sold at Home Depot and that kind of store is usually > 6063, which looks like polished 6061. It's also called "architectural" > grade aluminum, which means it's pretty and won't corrode, but the name is > a > little misleading. It's great for making things look nice, but > structurally > not as strong as 6061-T6, so not the one to use if you're building an > airplane. I fish a few scraps of aluminum out of the recycle bin at work > on > occasion, and although we hardly ever use 6063, I do see a piece now and > then. Like Brian said, it's clearly apparent that it's not 6061, and more > importantly it's real obvious when you drill it, as it cuts like butter > and > the chips are a completely different animal than 6061 chips (smaller and > more crumbly). > > I made a pretty huge pile of chips last night, machining a piece of 4.5" > diameter alumimum round down to 3.96" to make a plug for a Corvair > cylinder > head. This will allow me to pressure test the intake and exhaust valve > sealing capability before installing the head on the engine. It takes the > place of a 94mm cylinder, and bolts to the head to seal off the combustion > chamber. A nice tool to have, and one that nobody sells. I made a tight > fitting 94mm VW piston pin installer last week, which sure beats the old > 15mm Craftsman socket that I've used for the last 30 years for that job! > Another handy tool... > > Mark Langford, Huntsville, Alabama > see KR2S project N56ML at http://home.hiwaay.net/~langford > email to N56ML "at" hiwaay.net > > > ___ > Search the KRnet Archives at http://www.maddyhome.com/krsrch/index.jsp > to UNsubscribe from KRnet, send a message to krnet-le...@mylist.net > please see other KRnet info at http://www.krnet.org/info.html > ___ Search the KRnet Archives at http://www.maddyhome.com/krsrch/index.jsp to UNsubscribe from KRnet, send a message to krnet-le...@mylist.net please see other KRnet info at http://www.krnet.org/info.html
KR> 6063 aluminum
Hi Brian I'd be interested in seeing some engineering figures on tail plane hinge forces versus bracket strength spread across say five hinges to RR design just out of curiosity. Out of my league I'm afraid. However, I agree that for the cost of a few cents it's not really an issue to go with the highest strength possible unless there is a fatigue or corrosion question in the longer term. As I said, I did use 6061 for my control brackets but simply wondered if it were really necessary. John Martindale 29 Jane Circuit TOORMINA NSW 2452 AUSTRALIA phone: 61 2 66584767 (H) 61 2 66869075 (W) mobile: 0403 049990 email:johnja...@optusnet.com.au web: www.members.optusnet.com.au/johnjanet/Martindale.htm - Original Message - From: "Brian Kraut" To: "KRnet" Sent: Wednesday, February 14, 2007 3:04 PM Subject: RE: KR> 6063 aluminum > >>I just wonder whether we would ever have a need to use the higher >>strengths >>of 6061...wouldn't the 5005/6060 be more than enough? > > Depends on what you are using it for. Coffee cup holder, sure. Control > surface hinge bracket, not me. > >>I've used 5005 for my fuel tanks > > You are better off using the softer grades of aluminum for fuel tanks. > 5052 > is the best. It is one of the most weldable alloys and it won't crack and > leak easily like the stronger alloys. > > Brian Kraut > Engineering Alternatives, Inc. > www.engalt.com > > > > > ___ > Search the KRnet Archives at http://www.maddyhome.com/krsrch/index.jsp > to UNsubscribe from KRnet, send a message to krnet-le...@mylist.net > please see other KRnet info at http://www.krnet.org/info.html
