Home |
Search |
Today's Posts |
|
Metalworking (rec.crafts.metalworking) Discuss various aspects of working with metal, such as machining, welding, metal joining, screwing, casting, hardening/tempering, blacksmithing/forging, spinning and hammer work, sheet metal work. |
|
LinkBack | Thread Tools | Display Modes |
#1
Posted to rec.crafts.metalworking
|
|||
|
|||
Turning a taper between offset centers
After much adieu over nothing I suppose (since at the moment I only have
one to do) I decided to turn a tapered mandrel between centers. The first one turned out pretty good except I screwed up the finish pass(es) and came in under sized. No I can't just shorten it up. So I still have just one to do. LOL. I picked up one of those little offsettable centers and it worked well enough, except the tip melted. I kept it lubricated, but it might have just been to high of an rpm for the method. I can turn it slower, but if I get to do more of these I sure don't want to go slower. I have two thoughts: I can offset the tail stock and use a ball bearing center. I can machine off the melted center, center drill it, and insert a ball bearing between it and the center drill on that end of the stock. The ball bearing certainly won't melt, and it will more evenly distribute the load from the stock to the center. It would also have more contact with the drilled out center. It would also allow me to have a small reservoir of grease behind the bearing. I really don't have a strong feeling for which approach will work out better other than I dislike the time spent adjusting my tailstock back in. I can leave the offset center setup for this taper indefinitely. Ok, maybe I hope the ball bearing method will work out atleast as well. The taper is pretty shallow. .157 over 10 inches. |
Thread Tools | Search this Thread |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Forum | |||
OD grinding,10'' dia. solid roller between centers, asking for tipsregarding dead centers | Metalworking | |||
Spring-loaded live centers was Straight shank live centers | Metalworking | |||
Noob Lathe Q: Turning between centers | Metalworking | |||
turning between centers | Metalworking | |||
taper turning betw. centers | Metalworking |