what are those things that fit on your metal lathe and they can be used to bore holes in an object that are shaped like a square, hexagon, etc.?
2006-10-13 11:18:11 · 4 answers · asked by Anonymous in Science & Mathematics ➔ Engineering
i want to buy one but i dont know what theyre called.
2006-10-13 11:18:57 · update #1
they will bore a square or hexagonal hole in a round object.
2006-10-14 13:34:40 · update #2
It sounds like you want to bore round holes in non-round objects. You need a boring bar to cut the hole and a four jaw chuck to hold the piece.
Boring bars come in sets with a carbide insert brazed on the end of a bar. A set has several lengths and you want to use the shortest practical length to keep chatter down.
You can also buy a boring bar as a straight bar with a tool holder on the end. These are used for larger or deeper holes.
The four jaw chuck is needed to hold odd shapes. Unlike a three jaw, a four jaw has individually adjustable jaws so you can center whatever part you wish for boring.
2006-10-13 14:41:33 · answer #1 · answered by Pretzels 5 · 0⤊ 0⤋
Do not need many turning tools for small hollow pieces like flutes. A basic set is OK just to have around , but I'm thinking you will need finer , smaller tools for turning smaller diameter pieces w. any detail. great tip from William B. You can make own tools for special "profiles" or modify smaller tools for fine work. Would invest in a drill chuck for the dead end so you can use the lathe to bore the holes down the flute body without turning the long bit. Might make up a special jig or plug to hold the work while turning & boring. I made plugs & holders out of hardwood for odd pieces that required turning before & after center material was removed. Some are mounted to a small faceplate which is cheap. They give something for the spur ,screw & dead centers to grab while turning & allow removal & recentering if necessary without messing up finished ends. You can get chucks that are adjustable ( like a metal lathe ) but they cost ....$$$$ A good grinder for shaping home made tools & sharpening will be more useful than a wide assortment . Have to decide how to hold the work & If you plan on boring it out before or after the pice has been turned to shape. Best regards
2016-03-28 08:01:26 · answer #2 · answered by Anonymous · 0⤊ 0⤋
boring bar? but you can't bore a non cylindrical hole, if you want to make square, haxagonal shaped pockets you probably want a broach or EDM
added: I'm not exactly sure what you are referring to, but I think what you want is a "rotary broach"
2006-10-13 12:53:32 · answer #3 · answered by Nick F 6 · 0⤊ 0⤋
Hi. I think the are "Hex cutters" and work on a cam principle.
2006-10-13 11:20:45 · answer #4 · answered by Cirric 7 · 0⤊ 0⤋