2011年4月17日 · Most common use of a boring head with integral adjustment via a screw and dovetails is in a milling machine where the work is stationary. Can be used in a lathe, as Bob showed, where again, the work is not rotated. More often, the term "boring bar" refers to a single bar of round construction that holds either a carbide insert or a square hss tool.

2012年1月19日 · 1 drill you a hole in your stock by placing a drill bit in your tail stoc, drill your hole, smaller than what you want your finished hole, now use your boring bar in your tool holder make sure she is square to your work and centered, now run your boring bar into hole this is with the machine off, bring your cutting tool up against the side of hole once it touches bring your …

2015年11月11日 · Alaskanrocket lol, im from Sterling bud, so I use the specific holder show above, mine is a 3/4-1", I also use the standard holders with NO groove, as I have the boring bar set from shars that's 4pc set, uses ccmt inserts, 3/8 shank, 1/2 shank, 5/8 shank, and 3/4 shank, I think 78 bucks buys the set, the small bar doesn't play well with a grooved holder, it may be …

2013年2月14日 · A L.H. boring bar, will cut from the R.H. side of the piece, tailstock to head direction, BUT you need to run the head in reverse and the boring bar will be in the direction of the backside of the lathe. One little bit of advice, be careful and pay real close attention when using a L.H. boring bar and running your head in reverse.

2013年4月26日 · Sometimes rotating the boring bar a bit one way or the or the other can also help get rid of chatter, so a flat is not necessarily a good idea. When sharpening a boring bar, grind on the end only to maintain the form and keep the point sharp. A very slight radius can be stoned on it to improve surface finish, but too much will cause chatter.

2018年4月15日 · I need to bore a .469” diameter thru-hole x 6.5” long in some 1” aluminum hex bar (6061) for an airgun breech. I’ve made a couple breeches before with 1”x 1.25” 6061 flat bar with 1/2” bore, but always seem to struggle getting a hole bored from one end to the other & have it perfectly concentric.

2014年12月9日 · boring doesnt make bigger holes, but better holes. the hole you get from a drilbit is just the starting point for a boring bar. that will give you a round hole, up to the size you need, and with a good surface finish. you can bore the biggest hole with the smallest bar. a bigger bar wont fit into a smaller hole though.

2015年9月9日 · This post is really two questions. The first is how do go about grinding a boring bar in a way that does not take a weekend. The second questions is what is the optimal shape for a boring bar. For the first question: I need to make a boring bar to enlarge a 3/8" diameter x 1 7/32 length core hole in a bronze casting. I have 1/4" HSS tool bit stock.

2022年1月1日 · The work continues on my boring bar stand , the upper works is pretty much done . I still need to buy some more steel tubing to build the base. I allowed room for the use of torque plates when they are needed .

2014年7月16日 · use a long boring bar and set the compound to the angle required Start the taper boring for the full amount of the compound travel Wind the compound back and re-set the cutter of the boring bar to the end of the previous cut and again run the full length of the compound travel continuing the cut. repeat till done.