Re: API Taper thread chuck jaws
hy i just saw this, and is a briliant idea
yes, like you said, do it with chuck opened, and target a minimal play, only to allow to screw in your part ... the lower the play, the smaller the hidraulic travel when you close the chuck; but how your thread is tapered, you can actually control the play, by how much you screw in the part, thus this is a less worry, as in comparison to a normal straight thread
also, consider lower than usual chuck pressure ... 0.5 mpa ? just to have the cilinder moving, ohterwise, a big pressure, may damage the thread, because griping is not uniform, as the jaws tilt
also, when you machine your part, not the jaws, be sure to cut in a direction that has the tendecy to screw in your part, towards the chuck, otherwise, it may fly out; thus all tools to require same spindle sense
i think you can make this work, especially for big threads, as smaller, fine pithces, are more sensible / kindly
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