Work shift does not need to be used at all. If it is used, it's only used on the Z Axis.
Here is a good use of the workshift:
Running a chucking job and through the day you need to adjust for length control. You don't need to move the facing tool in. Just move the Z work shift in the minus for less stock removal and plus for more. This way you do a GRID SHIFT of the Absolute Coordinate System and all your tools move in/out the same amount. Don't try the novice method of wear offset times 6 tools in the Z to get this result. For some reason, it does not work.
NEVER MOVE THE X WORK SHIFT.
Also the Z work shift is great for running families of parts that only have a difference in the length. If there is enough of the stock sticking out, you just need to enter the amount of shift and make sure you maintain your clearances.
Don't use the Work Shift the way Hardinge tells you to. It's not needed at all.
If using a puller:
Cut off, leaving .250 sticking out of the collet/chuck
Pull to desired length
Face/Qualify/Rough Turn the diameter (this creates your Z0.0 for subsequent tools)
Touch off any remaining tools to this face.
Use wear offsets to dial in the part after taking .0005 face cuts with boring bars and such.
That's it. I run super precision parts like this all the time. Work shift is best used for length control. You do not need to use it at all in the program. Someone tell me where the benifit is in using it?
JT  |