Zoryra Forum
Programs, setups, feeds, and workholding.
Why does the same program cut big on the left vise only in the morning? Solved
Two vises, one program, work offsets set last night. In the morning the left vise cuts a boss 0.04 mm big. By…
Zoryra Forum · Lead · 3 replies · 0 views ·
Small end mill pulls out of a collet on a ramp Solved
A 3 mm carbide mill in an ER collet ramps into 6061 at 3 degrees and slowly walks out of the collet. Length o…
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Feed hold leaves a tool mark on a turned diameter Solved
Any time someone hits feed hold during a finish turn, the diameter has a groove. The operator is holding beca…
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Tapping a blind hole that must be full thread to the bottom Solved
The print shows full thread to within 1 mm of the bottom of a blind M6, 12 mm deep. A spiral point tap is wha…
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What wear offset do you leave for a polishing pass that is not in the CAM?
The CAM program finishes a boss to size. The buyer then wants a hand polish on the top. If we polish after a…
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Helical bore that chats at the bottom only Solved
A 25 mm hole is opened with a 12 mm end mill on a helix. The top is round. The last 3 mm chatters and the bor…
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Hole pattern rotates a few tenths between two vises Solved
The same program drills a four-hole pattern in two vises. Vise one matches the print. Vise two is rotated by…
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Cutter compensation that gouges the lead-in Solved
Wear compensation on a profile works for the walls and gouges the arc lead-in when the wear is a few tenths n…
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Constant surface speed that overspeeds a large face Solved
A facing cycle on a 300 mm disk in aluminum uses constant surface speed. At the center the spindle hits the c…
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Drill breaks out with a heavy burr on the far side of a tube
Cross-drilling a 2 mm wall stainless tube. The hole size is fine. The inside burr is a flap that fails a bore…
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How do you restart a long 3D finish without a witness line? Solved
A surface finish on a mold core takes forty minutes. A holder pulled out at minute twenty. Restarting at the…
Zoryra Forum · Lead · 3 replies · 0 views ·
Feeds that sound fine but leave a built-up edge on 6061 Solved
A 16 mm three-flute aluminum mill at the tool card's rpm sounds smooth and grows a cap of aluminum on the edg…
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Slot is wide at the top and to size at the bottom Solved
A 10 mm slot, 8 mm deep, in 6061 measures 10.12 at the top and 10.01 at the floor. The end mill is 10 mm, ful…
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Work offset changed after a tool change mid-cycle Solved
We broke a drill, replaced it, and set the length. After restart the next tool cut deep by about the length d…
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Thread mill that gauges tight at the start and loose at the bottom
A 1/4-20 thread mill in a 20 mm deep hole passes the go gauge at the top and fails at the bottom. The tool is…
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Finish pass that rubs instead of cutting on aluminum Solved
A face mill leaves a cloudy face on 6061 when the finish stock is 0.05 mm. The same tool with 0.3 mm stock lo…
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Peck drill wandering on a cross hole in round bar Solved
A 6 mm cross hole through 32 mm round 12L14 walks about 0.3 mm by the time it breaks out. We spot with a 90 d…
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Bore is tapered after a finish bar on a lathe Solved
A 40 mm bore, 55 mm deep, in 1045 measures 40.01 at the face and 39.96 at the bottom. The bar is 16 mm shank,…
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Rigid tap alarm at the bottom of an M8 in 304 Solved
M8x1.25 rigid tap in 304 stainless alarms on the reverse about one time in eight. The hole is drilled 6.8 mm…
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Chatter on a 12 mm end mill finishing a 4140 wall
A 12 mm four-flute carbide mill finishes a 28 mm tall wall in 4140 prehard. Roughing is quiet. The finish pas…
Zoryra Forum · Lead · 3 replies · 0 views ·