Rollerbox Trouble Shooting |
Problem |
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Possible Cures |
Insert “Rubs Away” low quantity of components |
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Check grade for material spindle speed to high — feed rate ?to low. |
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Insert Breaks |
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Check grade for material spindle speed to low — feed rate to high. |
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Insert Craters |
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Check grade for material combination of either spindle speedto high or feed rate to low. |
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Chipstream style will not produce coil turning |
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Spindle speed to high — feed rate to low |
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Tool withdraw marks with auto retract set correctly |
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Insert set below centerline |
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Rollerbox will not repeat turned diameters |
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Side roller incorrectly set (side roller controls side more than top roller) Insufficient pressure on roller. Check heel of retraction arm is seated in cutting position. |
Support screw “J” has not been adjusted (heel of retraction arm and support screw should be adjusted correctly) particles of swarf trapped under retraction arm heel (regularly strip and clean by removing hinge pin when turning nonferrous material). |
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Lump or false cut on start of turned diameter |
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Bar stock was not pre-chamfered (30-45 degrees) down to minimum finished turned diameter prior to roller boxing to provide a lead on for the turn — this operation is usually preformed at the part-off stage of the previous component or before the roller box operation THIS PRE-OP IS MOST CRITICAL. |
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Chatter marks at end of cut or under head of turn |
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Too long a “Dwell” at end of cut. |