Best Way to Increase Hole Size

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adrewfis
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Best Way to Increase Hole Size

Post by adrewfis »

Newbie here. I'm trying to increase an internal hole from 1" to 3.625" and was under the assumption a boring operation would take care of this. However, it does not seem prudent to use a boring command since I noticed it only takes one pass per command and it would take over 65 passes/commands to accomplish at one pass/command. Am I missing something in the boring command or is there another better way to remove that much material?
polaraligned
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Re: Best Way to Increase Hole Size

Post by polaraligned »

Not enough details such as depth, material, lathe or mill,etc. Circular pocket may be what you want if milling.
adrewfis
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Re: Best Way to Increase Hole Size

Post by adrewfis »

Sorry bout that. I'm using a lathe, depth of 1.4800", some 4340 steel with total diameter 5.4850".
cncsnw
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Re: Best Way to Increase Hole Size

Post by cncsnw »

Use either the Turning cycle or the Profile cycle.

Turning will be simpler: just give it the starting diameter (smaller, in this case) and the ending diameter (larger, in this case), the Z range, and the depth of cut per pass, and it will do as many passes as needed.

Profile is more complicated to program, but nice if you need to finish (chamfer or radius) the entry corner as part of the same operation.
adrewfis
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Re: Best Way to Increase Hole Size

Post by adrewfis »

Ok, I will try the more simpler method. I was thinking the turning cycle was just for making the outside diameters smaller. Thanks so much for your input!
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Re: Best Way to Increase Hole Size

Post by tblough »

Both the turning and profile cycles determine whether it's ID or OD work based on the starting position. If the first X move goes away from the spindle centerline, it assumes it's a boring cycle. If the first X move goes towards the spindle centerline, it runs as a turning cycle.
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