TAILGATE REPAIR SECTION |
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jpet
Moderator Group Sponsor Member x 5 Joined: 30 Apr. 2008 Location: Ramsey, IL Status: Offline Points: 11173 |
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If it were me, I'd have your sheet metal guy just put the "S" curve bend(s) in and leave out the 90 degree bend. The last die shown (or something like it) will form the 90 and it will be in the correct position. Otherwise your metal worker will have to calculate the distance between bends and it is likely to be a little off from part to part.
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CJ2A #29110 "General Willys"
MB #204827 "BAM BAM" "We do what we can, and we try what we can't" |
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jpet
Moderator Group Sponsor Member x 5 Joined: 30 Apr. 2008 Location: Ramsey, IL Status: Offline Points: 11173 |
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CJ2A #29110 "General Willys"
MB #204827 "BAM BAM" "We do what we can, and we try what we can't" |
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CW48
Member Joined: 19 Aug. 2007 Location: Fayetteville, GA Status: Offline Points: 234 |
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In a word, you guys work is magnificent!!!!!! Can't wait to buy 5 sets.
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Happiness is a Southbend Lathe
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woody
Member Joined: 04 May 2008 Location: ST.Louis,Mo. Status: Offline Points: 339 |
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Great work JPET!
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jpet
Moderator Group Sponsor Member x 5 Joined: 30 Apr. 2008 Location: Ramsey, IL Status: Offline Points: 11173 |
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CJ2A #29110 "General Willys"
MB #204827 "BAM BAM" "We do what we can, and we try what we can't" |
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mike in oregon
Member Sponsor Member Joined: 17 Jan. 2008 Location: Fall Creek Or Status: Offline Points: 1988 |
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Update. I made these tools and went to work yesterday and tried to bend a couple of test pieces that I got from the sheet metal shop. I believe the 90 degree bend they put in it is not correct and I may try some with out them as Jeff mention earlier. I was not happy with any of these test bends and had to back away for a day. I think I may try some of the angle iron tooling as I had a hard time keeping the sheet metal were it needed to be. iIwould like to move this topic to member created parts but do not know how to do this. Also I asked earlier but never got a reply so I will ask again, do you guys want complete pieces with new hinge pins or just the formed piece that is 37" long. I could also use the outside diameter of the piece so I could compare it to mine to make sure these are correct. Right know I am using 9/16 O.D. round stock to form the piece and may have to go to something bigger as it seem like my bend is to tight. Thanks, Mike
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MIKE IN OREGON
President of Oregon Flat Fender Club. http://www.facebook.com/pages/Oregon-Flat-Fender-Club/222864787838570 46 CJ2A 38007 46 CJ2A 79863 BANTAM T3-C 25314 |
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jpet
Moderator Group Sponsor Member x 5 Joined: 30 Apr. 2008 Location: Ramsey, IL Status: Offline Points: 11173 |
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Let me know if you need anything.
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CJ2A #29110 "General Willys"
MB #204827 "BAM BAM" "We do what we can, and we try what we can't" |
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CW48
Member Joined: 19 Aug. 2007 Location: Fayetteville, GA Status: Offline Points: 234 |
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I would like to keep in place my old tailgate pins. This might help out when aligning and welding up.
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Happiness is a Southbend Lathe
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mike in oregon
Member Sponsor Member Joined: 17 Jan. 2008 Location: Fall Creek Or Status: Offline Points: 1988 |
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Got ya CW46
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MIKE IN OREGON
President of Oregon Flat Fender Club. http://www.facebook.com/pages/Oregon-Flat-Fender-Club/222864787838570 46 CJ2A 38007 46 CJ2A 79863 BANTAM T3-C 25314 |
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mike in oregon
Member Sponsor Member Joined: 17 Jan. 2008 Location: Fall Creek Or Status: Offline Points: 1988 |
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Heres another update. I reworked all my trial tooling and did some more bending today and had much better results. I still have some tweaking to do and have to get the sheet metal shop to leave out the 90 degree bend and the material he used is only .055" and I think our tail gates are .065" as I checked mine in several places and it is anywhere from .060 to .065. some help here would be great, maybe a few of you guys could measure yours in a few places so we get her right. also I need more people to chime in to how long they want these, with or with out hinge pins, spot welded together or not?? Edited by mike in oregon - 05 Jan. 2010 at 3:06am |
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MIKE IN OREGON
President of Oregon Flat Fender Club. http://www.facebook.com/pages/Oregon-Flat-Fender-Club/222864787838570 46 CJ2A 38007 46 CJ2A 79863 BANTAM T3-C 25314 |
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jpet
Moderator Group Sponsor Member x 5 Joined: 30 Apr. 2008 Location: Ramsey, IL Status: Offline Points: 11173 |
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Mike,
Mine is .06 (16 gauge). I believe the tailgate to be 16 gauge.
You could go to 15 gauge (.067) but I think that you will find that because it is not a very common size it will be very hard to find and probably more expensive. 16 gauge is very common and easy to obtain.
Just a thought.
And GREAT work. Edited by jpet - 05 Jan. 2010 at 3:13am |
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CJ2A #29110 "General Willys"
MB #204827 "BAM BAM" "We do what we can, and we try what we can't" |
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mike in oregon
Member Sponsor Member Joined: 17 Jan. 2008 Location: Fall Creek Or Status: Offline Points: 1988 |
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Well thats what I thought and ordered but it its thinner than the original and when I measured it it was .055". must be that d#mm metric system again. |
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MIKE IN OREGON
President of Oregon Flat Fender Club. http://www.facebook.com/pages/Oregon-Flat-Fender-Club/222864787838570 46 CJ2A 38007 46 CJ2A 79863 BANTAM T3-C 25314 |
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jpet
Moderator Group Sponsor Member x 5 Joined: 30 Apr. 2008 Location: Ramsey, IL Status: Offline Points: 11173 |
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Edit: When I ordered material for making top bows, I always had someone go out to the warehouse and mic the material to make sure that it was within tolerance. Sure as shootin' if you just order it sight unseen, they will send you something that is out of spec. Edited by jpet - 05 Jan. 2010 at 7:56am |
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CJ2A #29110 "General Willys"
MB #204827 "BAM BAM" "We do what we can, and we try what we can't" |
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mike in oregon
Member Sponsor Member Joined: 17 Jan. 2008 Location: Fall Creek Or Status: Offline Points: 1988 |
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Jeff do you ever sleep? Your last post last night was 11:56 pm I believe my time which would be 1:56 am your time I believe give or take a hour. I may have to go to 14 guage to get 1940s 16 gauge.
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MIKE IN OREGON
President of Oregon Flat Fender Club. http://www.facebook.com/pages/Oregon-Flat-Fender-Club/222864787838570 46 CJ2A 38007 46 CJ2A 79863 BANTAM T3-C 25314 |
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jpet
Moderator Group Sponsor Member x 5 Joined: 30 Apr. 2008 Location: Ramsey, IL Status: Offline Points: 11173 |
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When I order 14 ga. I usually get material that is about .078 thick. When I order 16ga it's usually .059 thick.
Where are you buying material from? If the material is out of spec, I'd send it back and order from someone else. You have the right. There is a mill standard that they have to maintain. When you order material just tell them that the material must be within spec .059 minimum. If they can't guarantee that I wouldn't do business with them anyway. |
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CJ2A #29110 "General Willys"
MB #204827 "BAM BAM" "We do what we can, and we try what we can't" |
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mike in oregon
Member Sponsor Member Joined: 17 Jan. 2008 Location: Fall Creek Or Status: Offline Points: 1988 |
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I just have the small test pieces from the sheet metal shop and I will not be using it if they don't have the correct thickness. well I got to go to work know see ya. Mike
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MIKE IN OREGON
President of Oregon Flat Fender Club. http://www.facebook.com/pages/Oregon-Flat-Fender-Club/222864787838570 46 CJ2A 38007 46 CJ2A 79863 BANTAM T3-C 25314 |
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mike in oregon
Member Sponsor Member Joined: 17 Jan. 2008 Location: Fall Creek Or Status: Offline Points: 1988 |
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MIKE IN OREGON
President of Oregon Flat Fender Club. http://www.facebook.com/pages/Oregon-Flat-Fender-Club/222864787838570 46 CJ2A 38007 46 CJ2A 79863 BANTAM T3-C 25314 |
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jpet
Moderator Group Sponsor Member x 5 Joined: 30 Apr. 2008 Location: Ramsey, IL Status: Offline Points: 11173 |
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yes
Have him show you the spec.
I don't have my Machinist Handbook with me right now. Perhaps a member who is following the post does.
16 gauge is supposed to be .0598 as shown in all these examples:
http://www.sheetmetalguy.com/sheet_metal_gauge_chart.htm http://www.unc.edu/~rowlett/units/scales/sheetmetal.html http://www.thelenchannel.com/1sheet.php http://www.answers.com/topic/sheet-metal http://cableorganizer.com/articles/gauge-metal-sheet.html http://academic.evergreen.edu/projects/biophysics/technotes/fabric/sheet_metal.htm There is an ASTM standard for sheet metal thickness. (American Society for Testing of Materials)Have your vendor read ASTM A568. I believe the tolerance is .0598-.065 or something like that. It depends of the width of the sheet. The point is the ASTM standard only allows the material to be thicker not thinner. .0598 is the MINIMUM size as shown in the above hyperlinks.
Now .... does this company follow some other standard other than the ASTM? Perhaps they made up their own. I'd want him to show me the standard on paper. Perhaps they don't follow any standard. Who know. I don't know the legals of it all. Thing about it is 17ga is .0538 minimum and he's saying that his standard is .053 - .065?! Why stop there? Maybe they should just drop the standard to .0478 so that they can get rid of that pile of 18 ga that's been laying around for a couple years.
Anyway, I said all that to say this. When I order steel I won't say "16 gauge" I say. ".06" or ".0598". That way there is NO MISUNDERSTANDING. If they can't tell me how thick it is, I tell them to go out in the warehouse and measure it. If they won't, I'll go there myself. that's what I did when I was making top bows. In that case, The arch bow had to fit into the upright bow so the inside dia of the upright had to be a certain size .002 off would not cut it. So I personally measured the material. IMO, A reputable steel reseller would have an undestanding of manufacturing and understand why this is important. If they don't, you are better off going soewhere else anyway.
If you want, I can buy the steel for you.
Edit: You better read the ASTM standard before you quote me though. I'm going by memory. Edited by jpet - 07 Jan. 2010 at 1:29am |
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CJ2A #29110 "General Willys"
MB #204827 "BAM BAM" "We do what we can, and we try what we can't" |
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