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Keep it simple in your 1st attempt. Which means lacking out as much as possible. Slash your thread in fresh new air (no element during the chuck). Then you can mess around with all of the minimal changes and watch what they do.
Don’t know what flank slicing is? Don’t worry it just implies that you are stupid. I received’t inform anybody, your mystery is Risk-free with me.
Furnishing you input the insert angle A60 on a sixty degree thread sort then you'll get flank slicing.
In case the taper just isn't Reduce, the Device will begin with a DOC At the beginning in the thread equal to the initial DOC sum, as well as the quantity of radial taper. In Brent's example in Post #6, that DOC for the first go would start out at 0.043" at the start from the thread and clean out to 0.007" within the Z End level, significant diameter with the thread. I wouldn't be surprised to see the insert split on the initial move.
In order to alter a little something It is just a nightmare. You'll need to reprogram it just to alter the depth of cut.
It's exactly where the tool plunges in to the thread and also the Slice receives wider and therefore is much more prone to chatter mainly because it deepens. It is going straight down the centre from the thread vee.
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Recognize the aggravation. Tapered threads they only must be accomplished appropriate either on lathe or mill with threaders and that is my desired technique on them.
Machine should speed up into the thread so begin at Z5. with regards to the velocity and pitch this might have to be far more.
The P on the second line is the peak on the thread, I believe (in radius). That is data the device should determine It really is initial Reduce. The X you gave on this line tells it where the basis with the thread is, but it surely should know the key dia, also.
Seems daft I realize however you can skip out lots of the complex things from the cycle as many the values have defaults (that means it is possible to overlook them out).
When using G76 you can’t use feedhold. On some controls the Software will retract but be sure to Test the modest print 1st or try out it in refreshing air.
You can also’t use spindle override. They're each blocked through the cycle to stop you messing up your treasured thread.
As I reported over when I began googling G76, it’s not a reasonably sight. For a single there’s not that Substantially information and facts and never least of all a number of it's Completely wrong.