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Want to build a root rake for the D3LGP. Am wondering if CAT cutting edges (used) can be cut to make a tooth (a dozen of them) and then welded to a 5x5x1/2x120 inch steel tube to make the base of root rake. I all ready have the design made up on paper now I am looking for steel, cost of new steel is not financially possible, so I am thinking of all those used discarded cutting edges.Would the cutting edges be to brittle for a rake tooth?What type of steel would you suggest?Is AR36 to light strength?I know it would have to be thick I am thinking of 1 inch or 1.25 thick steel for AR36.the CAT Cutting edges are about 1 inch thick.What cutting method would work to cut out the ripper tooth from the cutting edge, a hand held torch or should I take it to the local machine shop for laser cutting?What welding rod and how many passes should I use to make it hold together?
Reply:I was thinking of using cutting edges also to make a rock rake.I was going to use 4" - 6" square tubing to make a rectangular upper frame. Then weld a 2 foot piece of cutting blade at about a 30º angle to make the bottom part of the tooth. Cross brace as needed.I figured it's a fairly cheap and simple way to go since I've got the steel sitting here. If it doesn't work, I've got the frame already and can always re-do the teeth...Be sure to take some pics if you go this "root" Andrew
Reply:[QUOTE=Would the cutting edges be too brittle for a rake tooth?The cutting edges will be fine.What type of steel would you suggest? This will work if you attach it correctly. Instead of welding it to a tube; it really needs to be bolted onto a plate which is welded to the tube. Do you understand? If not I'll explain more.What cutting method would work to cut out the ripper tooth from the cutting edge, a hand held torch or should I take it to the local machine shop for laser cutting?If cost is a factor, get out the oxy/ace set and go to work. The biggest factor is the amount of prep time you put into before cutting. You may want a template to guide your torch, at least a straight edge adjusted for all the same cuts, do all the edge/pieces then switch to your next set.What welding rod and how many passes should I use to make it hold together?Not knowing what you have, a standard which will work, 7018.
Reply:Why would or should I bolt the cut cutting edge to a metal plate and then weld the plate to the tube that mounts all the teeth on to it? I do not understand why I could or I should not weld the dozer made cutting edge teeth directly to the tube.Please reply.
Reply:Because the ripper teeth are going to be a wear item, and by bolting them to the tube you make it much easier to replace them if/when they break or wear. Also, the cutting edge is likely a high alloy steel which would require more care when welding so that it does not crack later on.Have we all gone mad?
Reply:The thought of bolting on sounds good , but in reality its not needed or would be advised. All it will do is give you a weak link and you will be making more shanks to replace lost ones. The amount of work planned for this shank should be considered. We run root rakes on my D-8 down to a D-20 Kom. and they are used weekly at the least and they hold up well. I have built them out of AR 500 plate and welded hard surface beads on the teeth on a couple and nothing on one other. A root rake is not used as a ripper for ground penetration, if it is run correctly a rake runs on the surface and occasionally is used to penetrate. A cutting edge will work fine - but it would benefit to put gussets, our teeth stick out 12" below the tube and i have 4x6 gussets on both sides of each shank. I cut the teeth so they slide over the tube and then seal weld around on both sides. Cutting methods only depend on your available methods , torch will be most economical. Good luck . Post a pic. when completed.
Reply:Any of those that have posted (or others lurking nearby!) have photos of home-made rock rakes?I'm not talking about little 3 point-hitch ones you made for your 20 HP garden tractor either. I mean ones made for crawlers, or large 4wd/tracked ag tractors.Andrew |
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发表于 2021-8-31 23:39:00